Cambodian Agricultural Research and Development Institute Phnom Penh, Cambodia 2001 Cambodian

DESCRIPTION OF

RICE VARIETIES RELEASED BY THE VARIETAL RECOMMENDATION

COMMITTEE OF CAMBODIA Institute (1990 – 2000)

Development

and

Research

Agricultural

Cambodian Agricultural Research and Development Cambodian Institute Phnom Penh, Cambodia 2001

Institute

Development

and

MEN SAROM, RAM C. CHAUDHARY, EDWIN JAVIER, OUK MAKARA, SAKHAN SOPHANY, HUN YADANA,Research PITH KHON HEL, KHUN LEANG HAK, G.S. SIDHU, SIN SOVITH, SAY PUTHEA, UNG SOPHEAP, PREAP VISARTO

Agricultural Published by Cambodian Agricultural Research and Development Institute Phnom Penh, Cambodia 2001 Cambodian

i Special Notification

This manual has been published under a funding support from the Australian Agency for International Development through the International Rice Research Institute.

Institute IRRI

Development

and

Research Copyright Cambodian Agricultural Research and Development Institute 2001

National Road 3, Prateah Lang, Khan Dangkor, Phnom Penh, Cambodia P.O. Box 01 Phnom Penh, Cambodia Tel: (855-23) 219 692/ 219 693/ 219 694 Fax: (855-23) 219 800 E-mail: [email protected] Agricultural

Cambodian

ii CONTENTS

Foreword………………………………………………………………………………………iv Varietal Recommendation Committee of Cambodia (1991-2000).....…………………………vi Rice Agro-Ecosystems in Cambodia…………………………………………………………viii Plant Breeding Progarmme ...... …………………….…xi Varietal Testing Pathway……………………………………………………………………..xii Testing site…...... ……………………..xiii Distribution of Research Stations…………………………………………………………Institute …xvii Seed Classification…………………………………………………………………………xviii Seed Standards………………………………………………………………………………..xx Varietal Characteristics: VARIETIES FOR RAINFED UPLAND CONDITIONS Rimke ...... ………………………………3 Sita ...... ……………………………..5 VARIETIES FOR RAINFED LOWLAND CONDITIONS (EARLY MATURITY) (Dry season/Irrigated/Receding) IR 66 ...... …………………………….8Development IR 72 ...... …………………………… 10 Kru ...... ……………………………12 IR Kesar ...... and...... ………………………….. .14 Baray ...... …………………………..16 Chul'sa ...... …………………………..18 Rohat ...... ………………………….20 Rumpe ...... ………………………….22 VARIETIES FOR RAINFED LOWLAND CONDITIONS (MEDIUM MATURITY) Research I. INSENSITIVE TO PHOTOPERIOD Santepheap 1 ...... …………………………..25 Santepheap 2 ...... ……………………………27 Santepheap 3 ...... …………………………..29

Popoul ...... …………………………. 31 Sarika ...... …………………………..33 II. SENSITIVE TO PHOTOPERIOD Riang CheyAgricultural ...... ………………………………………..35 CAR 1 ...... …………………………………………………………….37 CAR 2 ...... ……………………………………………………………..39 CAR 3 ...... …………………………………………………………….41 CAR 11 ...... …………………………………………………………….43 VARIETIES FOR RAINFED LOWLAND CONDITIONS (PREMIUM/AROMATIC) MADIUM MATURITY RICE VARIETIESCambodian WITH SENSITIVITY TO PHOTOPERIOD Phka Rumchek ...... ………………………………………..46 Phka Rumchang ...... ……………………………………48 Phka Rumduol ...... …………………………………..50

iii VARIETIES FOR RAINFED LOWLAND CONDITIONS (LATE MATURITY) CAR 4 ...... ……………………………………………53 CAR 5 ...... …………………………………………………55 CAR 6 ...... ………………………………………………..57 CAR 7 ...... …………………………………………………59 CAR 8 ...... ………………………………………………….61 CAR 9 ...... ……………………………………………………63 CAR 12 ...... ……………………………………………………65 CAR 13 ...... ………………………………………………Institute …67 VARIETIES FOR DEEP WATER CONDITIONS Don ...... ……………………………………………………….70 Khao Tah Petch ...... …………………………………………72

Tewada ...... …………………………………………..74

Development

and

Research

Agricultural

Cambodian

iv FORWORD

With an annual population growth rate of 2.4, and after a long deficit period (1970- 1995) Cambodia has again attained self sufficiency in rice. This success has been significantly contributed by the stability in country politics after a long period of unrests, and so the growth in the country economics. Nevertheless contribution made by the development Institute of new agricultural technologies, along with the above two factors, has definitely impacted to the above success. Variety is considered the most important contributing factor among the latter.

From 1990 to 2000, the Varietal Recommendation Committee of Cambodia (VRC) has successfully released 34 rice varieties for cultivation in different agro-ecosystems. Eight varieties have been released for irrigated dry and early or Developmentlate wet seasons, ten for medium, and 8 for late rainfed lowland conditions. Three varieties have been released for deepwater and rice environments where water depth reaches up to 1.50m and 2 for rainfed upland rice. Three aromatic premium rice varieties have also been released for commercial use.

There has been a long developing and screening process for all the 34 varieties before their official release. In this proResearchcess, the Plant Breeding Program of the Cambodian Agricultural Research and Development Institute (CARDI) has employed conventional breeding methods including mass and pure line selection to select elite lines from popular traditional varieties within Cambodia and elsewhere, and tested them in 3+1 tiers testing system. Introduction of advanced lines from the International Rice Research Institute (IRRI), deep water rice breeding program at Huntra and Prachin buri (Thailand) and breeding Agricultural program of other countries have also been carried out, and tested thoroughly before their final release. Some of the released varieties have also been introduced through the International Network of Germplasm Evaluation for Rice (INGER).

It is hoped that this present catalogue will provide all necessary information on yield performance,Cambodian grain quality and some morphological data for the 34 rice varieties released by the VRC. We hope also that this information can be useful to both technical and non- technical readers, researchers, seed producers, extensionists, millers and farmers.

v Finally, I wish to thank to all people who involve in the development and testing of the varieties, and in the process of preparation of this catalogue. My gratitude is given to all my colleagues breeders for their full cooperation, and especially to Mrs. Sakhan Sophany for her skillfulness in the preparation of the manuscript, to Mr. Hun Yadana, Mr. Pith Khon Hel and Mr. Ouk Makara, for their effort in collating and checking all required data presented in this catalogue, to Mr. Khiev Bunnarith for assisting in taking some pictures, and to staff of the Training and Information Centre for making the printing of this catalogueInstitute possible. Financial support provided by the Australian Agency for International Development (AusAID) through the International Rice Research Institute (IRRI) for printing this catalogue is highly appreciated.

Men Sarom Director, CARDI Development

and

Research

Agricultural

Cambodian

vi VARIETAL RECOMMENDATION COMMITTEE OF CAMBODIA (1991-2000)

1. Committee Chairmen 1. Mr. Ouk Phal, Head of Technical Office, Department of Agronomy (1991-94) 2. Mr. Mak Soeun, Head of Technical Office, Department of Agronomy (1995-96) 3. Mr. Nuth Sakhan, Director of Department of Agronomy (1997-1999)Institute

2. Committee Secretaries 1. Dr. Ram C. Chaudhary, Plant breeder, Cambodia-IRRI-Australia Project (CIAP) (1990-1993) 2. Dr. Edwin Javier, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP) (1995-1996) 3. Mr. Ouk Makara, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP)* (1997) Development 4. Mr. Hun Yadana, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP)* (1999) and 3. Committee members 1. Dr. Men Sarom, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP)* (1990-1992, 1996-1999) 2. Mr. Sin Sovith, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP) (1990- 1995) 3. Mr. Pith Khon Hel, Plant ResearchBreeder, Cambodia-IRRI-Australia Project (CIAP)* (1992-1999) 4. Mr. Mak Soeun, Chief Technical Office, Department of Agronomy (1993-1999) 5. Mr. Sok Sophal, Director of Dey Eth Agricultural Research Station (1991, 1993- 95, 1996) 6. Mr. Leng Sothat, Plant Breeder, Director of Prey Phdau Rice Research Station (1991), Representative of Partnership for Development in Kampuchea (1995) 7. Mr. Ouk Phal, Head of Technical Office, Department of Agronomy (1990-92) 8. Mr. Chin Koeun,Agricultural Chief of Agronomy Office, Takeo (1991) 9. Mr. Teav Pochun, Chief of Agronomy Office, Siem Reap (1991, 1996) 10. Mr. Srun Sokhom, Head of Food Production Office, Department of Agronomy (1995-1999) 11. Dr. Edwin Javier, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP) (1997) 12. Dr. G. S. Sidhu, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP) (1995- 1997) 13.Cambodian Mr. Ouk Makara, Plant Breeder, Cambodia-IRRI-Australia Project (CIAP)* (1992-1996, 1999) 14. Mr. Pen Vuth, Head of Crop Protection Office, Department of Agronomy (1995, 1997)

vii 15. Mr. Sar Hai, Director of Beung Riang Agricultural Research Station, Battambang (1995-1996) 16. Mr. Peu Yon, Director of Toul Krasang Rice Production Farm, Kandal (1995, 1997) 17. Mr. Tea Neang, Research Chief, Toul Samrong Rice Research Station, Battambang (1993) 18. Mr. Try Hong, Researcher, Toul Samrong Rice Research Station, Battambang (1993) 19. Mr. Seng Vang, Researcher, Cambodia-IRRI-Australia Project (CIAP)* (1993) 20. Mr. Kim Yon, Vice Chief of Agronomy Office, Pursat (1995) Institute

Development

and

Research

Agricultural

Cambodian

______* Now Cambodian Agricultural Research and Development Institute (CARDI)

viii

1. Rainfed Upland Rice In Cambodia, less than 2% of the wet season rice cultivated area is grown by rainfed upland rice. The upland rice is concentrated in small pockets found mainlyInstitute in the provinces of Ratanak Kiri, Kampong Cham, Siem Reap, Kampong Thom, Koh Kong, Kampot, and Stung Treng.

2. Rainfed Lowland Rice More than 90% of wet season rice cultivated areas is rainfed lowland rice. It is concentrated on the flat plains around the Tonle Sap Lake,Development Mekong River and Tonle-Basac River. Rice in this ecosystem is cultivated on varied soil types and under a number of rainfall intensities and patterns. Based on the growth durationand or the timing of flowering the group was subdivided further into early, medium, and late. 2.1 Early varieties – Early duration rice varieties are grown in about 20% of the total rainfed lowland rice cultivated areas. These varieties are generally insensitive to photoperiod. They are cultivated mainly around villages, on the upper spot of the fields or where water can be supplemented. In recentResearch years, many farmers grow these varieties at the beginning of the rainy season so they can harvest the crop just at a normal time to plant either medium or late varieties. In another locations, farmers also cultivate these varieties at the flood recession period and so it is called recession rice. Under normal conditions, the early varieties mature in less than 120 days. 2.2 Medium varietiesAgricultural - there are two groups of medium rice varieties. They can be either insensitive or weakly to moderately sensitive to photoperiod. Photoperiod insensitive group consists of varieties mature in less than 150 days, but longer than 120 days. These varieties are generally grown in the areas where the conditions are more favorable for the growth of the rice plants. Medium varieties that are sensitive to photoperiod flower between mid October to mid November. There are many commercially important varieties in Cambodian this group, especially, aromatic and grain premium varieties. Approximately 40% rice production areas in the wet season are occupied by medium varieties.

ix 2.3 Late varieties - about 33 percent of rainfed rice cultivated areas is grown by late varieties. These long duration rice varieties are strongly photoperiod sensitive and obliged to flower only after mid November. There is a tendency of decreasing rice areas under long duration group cultivation. Due to frequent sporadic rainfall that causes either drought or flood, farmers are in the tendency to replace late varieties with medium ones.

3. Deepwater/Floating Rice Institute These rices are cultivated around the Tonle Sap Lake and beside the Mekong and Basac Rivers in the provinces of Kampong Thom, Banteay Mean Chey and Battambang. Smaller areas can be find in Siem Reap, Pursat, Kandal and Takeo. Approximately 4% of the total rice area are sown to deepwater varieties. The area under this ecosystem has rapidly declined in the favour of dry season rice or receding rice. In this agro-ecosystem, rice is grown in water depth up to 4 meters. Rice varieties with Developmentwhite and red pericarp are planted for consumption (but mainly for noodle making) and for wine making, respectively. Only photoperiod sensitive of late duration rice varieties areand grown. Many varieties in this group were lost in the wartime and by Khmer Rough when they ruled the country between 1975 and 1978.

4. Dry Season Rice Research Approximately 13% of rice cultivation areas in Cambodia are irrigated or supplementary irrigated during the dry season. Rice crops may be fully irrigated from established irrigation canals or systems or partially irrigated in a receding water situation at the edge of lakes. Dry season rice generally starts to sow at the beginning of November and lasts to about April. In case of receding rice, the crop may be established much earlier before this time depending on theAgricultural situation of the floodwater. Dry season rice is mainly cultivated in the province of Takeo, Prey Veng, Kandal, and Kampong Cham. Mainly photoperiod insensitive rice varieties with short duration are cultivated in the dry season. These varieties can be modern and traditional. In the present about 70 to 80% of the dry season cultivated areas are under modern varieties like IR 66, Kru and IR Kesar. Some traditional photoperiod insensitiveCambodian varieties are still grown like Lum-ang Ksach and Neang Sar Pragnap. In addition to the photoperiod insensitive varieties, farmers also cultivate few photoperiod sensitive in the dry season.

x Institute

Rice Agro-Ecosystems

Development

and

Research

Agricultural

Cambodian x

PLANT BREEDING

PROGRAMME

Germplasm Collection, Institute Evaluation & Conservation

Materials Varietal Materials from from IRRI Development other Countries Development

and Varietal Testing

Varietal Research Recommendation Committee

Seed Production

Agricultural

On- farm Extention & Utilization Adaptive Trials (NGOs, OIs,Others)

Cambodian

VARIETAL TESTING PATHWAY

Institute OYT

PYT L D Development

and

AYT F U

Research

OFAT

Early & Medium Late Deepwater Upland Agricultural

F = favorable, U = unfavorable, L = late, D = deep water OYT = Observational Yield Trial PYT = Preliminary Yield Trial AYT = Advanced Yield Trial OFAT = On- farm Adaptive Trial Cambodian

xii

TESTING SITE

I. On - Station Trails

No Station ProvinceInstitute 1 Cambodian Agricultural Research and Phnom Penh Development Institute (CARDI) 2 Spean Kralar Banteay Meanchey 3 Bek Chan Battambang 4 Boeung Reang Battambang 5 O'Sandas DevelopmentBattambang 6 Toul Samrong Battambang and 7 Chamcar Leu Kampong Cham 8 Chhbar Prek Chan Kampong Cham 9 Tuk Chha Kampong Cham

10 Boeung Po Research Kampong Chhnang 11 Kampong Leng Kampong Chhnang 12 Chhbar Morn Kampong Speu 13 Prey Phdau Kampong Speu 14 Ballang Kampong Thom Agricultural 15 Prey Prash Kampong Thom 16 Stung Keo Kampot 17 Day Eth Kandal 18 Sa-ang Kandal 19 CambodianToul Chrem Chrom Kandal 20 Toul Krasang Kandal 21 Kap Srau Phnom Penh

xiii 22 Prek Leap Phnom Penh 23 Stung Meanchey Phnom Penh 24 Toul Bakha Phnom Penh 25 Chrey Veal Prey Veng 26 Por Lors Prey Veng 27 Prey Kandieng Prey Veng Institute 28 Boeung Kantuot Pursat 29 Boeung Khnar Pursat 30 Toul Lapao Pursat 31 Kandieng Pursat 32 Tuk Will DevelopmentSiem Reap 33 Prey Nup Sihanouk Ville and 34 Toul Koktrap Svay Rieng 35 Kampong Ampil Takeo 36 Kbal Po Takeo 37 Slakou Takeo Research 38 Thnaut Kanchrung Takeo 39 Tonle Bati Takeo

II. On - Farm Adaptive Trials Agricultural No Province District

1 Banteay Meanchey 1.1. Monkul Borei 1.2. O'Chrau 1.3. Phnom Srok 1.4. Preah Neth Preah 1.5. Serei Sophoan Cambodian 1.6. Svay Chek

xiv 2 Battambang 1. Banan 2. Bavel

3. Battambang 4. Ek Phnom 5. Mong Reosei 6. Rattanak Mondul 7. Sangke 8. Svay Por Institute 3 Kampong Cham 1. Batheay 2. Cheung Prey 3. Kampong Siem 4. O'riang Oav 5. Prey Chhor 6. Tboung Khmom

4 Kampong Chhang 1. Bar-riboDevelopment 2. Chul Kiri 3. Kampong Chhnang 4. andKampong Leng 5. Kampong Tralach 6. Rolea Pha-ea 7. Tuk Phos

6 Kampong Thom 1. Baray 2. Kampong Svay Research 3. Prasat Ballang 4. Santouk 5. Storng 6. Stung Sen

7 Kampot 1. Ankor Chey 2. Banteay Meas

Agricultural 3. Chhouk 4. Kampong Bay 5. Kampong Trach 6. Chum Kiri

8 Kandal 1. Ang Snoul 2. Kandal Stung Cambodian 3. Kien Svay 4. Leuk Dek 5. Lvea Em 6. Mouk Kampoul

xv 7. Ponhear Leu 8. Sa-ang

9 Kratie 1. Chhlong 2. Kratie

10 Phnom Penh 1. Dangkor 2. Phnom Penh Thmei 3. Reosei Keo Institute 11 Preah Vihear 1. Tbeng Mean Chey 13 Pursat 1. Bakan 2. Kandieng 3. Krakor 4. Kravanh 5. Sampeu Meas 14 Siem Reap 1. AngkorDevelopment Thom 2. Banteay Srei 3. andChi Kreng 4. Kralanh 5. Pourk 6. Prasat Bakorng 7. Siem Reap 8. Soth Nikum 9. Srei Snamm Research10. Svay Leu

15 Sihanouk Ville 1. Prey Nup 16 Stung Treng 1. Korng Chak 17 Svay Rieng 1. Kampong Ror 2. Romeas Hek Agricultural 3. Svay Chrum 4. Svay Teap

18 Takeo 1. Bati 2. Borei Chulsa 3. Don Keo 4. Kirivong 5. Koh Andet Cambodian 6. Prey Kabas 7. Samrong 8. Tram kak 9. Triang

xvi

DISTRIBUTION OF RESEARCH STATIONS

Institute

Development

and

Research

Agricultural h Research station N Q Provincial/City center Provincial Boundary Shallow water-wet season W E Shallow water-dry season Rainfed upland rice Deepwater rice Cambodian S

xvii

In seed production system, 4 classes of rice seed are usually recognized. Those are Breeder seed (BS), Foundation seed (FS), Registered seed (RS) and Certified seed (CS). Apart of those, two more classes are known, Nucleus seed (NS) and Graded seed (GS) (see picture followed). Institute

1. Nucleus seed (NS) - is the original seed that provides the start of the seed production program. Generally this seed is produced and maintained by breeders.

2. Breeder seed (BS) – is produced by plant breeders using NS in a single panicle- progeny selection approach. Uniformity within progenies is strictly required. Uniform and true-typed progenies are harvested and bulked for seed production in the next generations. Progenies exhibit variation,Development even minor, from others will be discarded. and 3. Foundation seed (FS) – produced by using BS in a row planting with single seed/seedling per hill. Seed of true-typed plants are harvested and bulked for registered seed production.

4. Registered seed (RS) – produced by using FS in a lager scale. Similar planting and all cultural practices to FS are applied. Seed of true-typed plants are harvested and bulked. Research

5. Certified seed (CS) – produced by using RS. Seed of true-typed plants are harvested and bulked. Presently CS production is not carried out at CARDI.

6. Graded seed (GS) – at CARDI after RS, the next generation of seed produced in modified approach is graded seed. The seed is produced by using RS in row planting but withAgricultural more than one seedling per hill.

The production of FS, RS, and CS is similar to normal rice production practices, except that in the formers row planting with only one seedling per hill is strictly applied. Generally in seed production program at CARDI transplanting is the only practice. The seed production plots are carefully weeded and fertilized. Roguing is regularly done to ensure purity standard required.

Cambodian

xviii

NUCLEUS SEED (NS) Institute

BREEDER SEED (BS) Development

and FOUNDATION SEED (FS)

Research

REGISTERED SEED (RS)

Agricultural

CERTIFIED SEED (CS)

Cambodian GRADED SEED (GS)

xix

Institute

Standards for each class

Factor Foundation Registered Development Certified Graded

Pure seed (minimum) 98.00% 98.00% and 98.00% 95.00%

Inert matter (maximum) 2.00% 2.00% 2.00% 5.00%

Weed seeds (maximum) 0.05% 0.05% 0.10% 0.50%

Total other crop seeds (maximum) 0.05% Research0.10% 0.22% 3.00%

Other varieties (maximum) 0.05% 0.10% 0.20% 2.00%

Other kinds (maximum) None None 0.02% 1.00%

Germination (minimum) 85.00% 85.00% 85.00% 80.00%

Moisture (maximum) 12.00%Agricultural 12.00% 13.00% 13.00%

Cambodian

Institute

Development

and

Research

Agricultural

Cambodian

Institute

Development

and

Research

Agricultural

Cambodian

2 Variety: Rimke

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Rimke

• Line Designation : ITA 150 Institute • Parent : 63-83/ROI, SE 363G, Dourado Prococe 68 • Year released : 1991

• Yield (t/ha) : 2.5-4.0 • Maturity (DAS) : 90 - 95 • Plant Height (cm) : 105 - 121 • Productive Tillers : 8.3 ± 3.0 • Grain Per Panicle : 90 ± 14 Development • Panicle Length (cm) : 21.4 ± 0.5 • Resistance to BPH : and

• Grain Length (mm) : 6.0 • Grain Width (mm) : 2.0 • L:W Ratio : 3.0 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 69.0 • Head Rice Recovery (%) : 48.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 22.0 • Gel Consistency (mm) : 68.0 • GelatinizationAgricultural Temperature : Low • Raw Rice Appearance : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

4 Variety: Sita

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Sita

• Line Designation : ITA 257 Institute • Parent : IRAT 3/Dourado Precoce 68//TOX 490-1 • Year released : 1991

• Yield (t/ha) : 2.5 - 4.0 • Maturity (DAS) : 90 - 100 • Plant Height (cm) : 92 - 108 • Productive Tillers : 9.2 ± 3.9 • Grain Per Panicle : 88 ± 12 Development • Panicle Length (cm) : 23.6 ± 3.0 • Resistance to BPH : and

• Grain Length (mm) : 7.0 • Grain Width (mm) : 2.3 • L:W Ratio : 3.0 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 3.15 • Milling Recovery (%) : 67.0 • Head Rice Recovery (%) : 37.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 19.0 • Gel Consistency (mm) : 92.0 • GelatinizationAgricultural Temperature : Intermediate/High-intermediate • Raw Rice Appearance : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

6 Institute

Development

and

Research

Agricultural

Cambodian

7 Variety: IR 66

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS IR 66

Institute • Line Designation : IR 32307-107-3-2-2 • Parent : IR 13240-108-2-2-3/IR 9129- 209-2 • Year released : 1990

• Yield (t/ha) : 4.0 - 6.5 • Maturity (DAS) : 105 - 115 • Plant Height (cm) : 80 - 118 • Productive Tillers : 12 ± 0.6 Development • Grain Per Panicle : 95 ± 7 • Panicle Length (cm) : 25.1and ± 1.0 • Resistance to BHP : Moderately susceptible

• Grain Length (mm) : 7.2 • Grain Width (mm) : 2.0 • L:W Ratio Research : 3.6 • Brown Rice Shape : Slender • 100 Grain Weight (g) : 2.22 • Milling Recovery (%) : 69.0 • Head Rice Recovery (%) : 64.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 23.6 • Gel ConsistencyAgricultural (mm) : 72.0 • Gelatinization Temperature : Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Good • Aroma scent : None

Cambodian

Variety: IR 72

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

IR 72

• Line Designation : IR 35366-40-3-3-2-2 Institute • Parent : IR 19661-9-2-3// IR 15795-199- 3-3/ IR 9129-209-2-2-2 • Year released : 1990

• Yield (t/ha) : 3.5 - 6.0 • Maturity (DAS) : 110 - 120 • Plant Height (cm) : 77 - 117 • Productive Tillers : 12 ± 0.6 Development • Grain Per Panicle : 86 ± 7 • Panicle Length (cm) : 24.9and ± 1.4 • Resistance to BPH : Susceptible

• Grain Length (mm) : 7.2 • Grain Width (mm) : 2.1 • L:W Ratio Research : 3.4 • Brown Rice Shape : Slender • 100 Grain Weight (g) : 2.41 • Milling Recovery (%) : 73.0 • Head Rice Recovery (%) : 58.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 24.2 • Gel Consistency (mm) : 88.0 Agricultural • Gelatinization Temperature : Low/Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Average • Aroma scent : None

Cambodian

11 Variety: Kru

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

KRU

• Line Designation : IR 13429-150-3-2-1-2 Institute • Parent : IR 4432-53-33//PTB 33/IR 36 • Year released : 1990

• Yield (t/ha) : 3.5 - 6.0 • Maturity (DAS) : 110 - 115 • Plant Height (cm) : 79 - 122 • Productive Tillers : 13 ± 0.7 Development • Grain Per Panicle : 89 ± 8 • Panicle Length (cm) : 24.5 ± 0.4 • Resistance to BPH : Moderatelyand Resistance

• Grain Length (mm) : 7.0 • Grain Width (mm) : 2.0 • L:W Ratio : 3.5 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.39 • Milling Recovery (%) : 72.0 • Head Rice Recovery (%) : 65.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 24.0 • Gel Consistency (mm) : 84.0 • GelatinizationAgricultural Temperature : Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptibility : Very good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Variety: IR Kesar

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

IR KESAR

• Line Designation : IR 48525-100-1-2 Institute • Parent : IR 2432-34-2/IR 31868-64-2-3- 3-3 • Year released : 1993

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 105 - 120 • Plant Height (cm) : 84 - 123 • Productive Tillers : 9.7 ± 4.1 • Grain Per Panicle : 89 ± 16.5Development • Panicle Length (cm) : 25.7 ± 2.1 • Resistance to BPH : Moderately Resistance and

• Grain Length (mm) : 6.8 • Grain Width (mm) : 2.0 • L:W Ratio : 3.4 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.30 • Milling Recovery (%) : 70.0 • Head Rice Recovery (%) : 61.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 22.4 • Gel Consistency (mm) : 80.0 • GelatinizationAgricultural Temperature : Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Very good • Aroma Scent : None

Cambodian

15 Variety: Baray

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Baray

• Line Designation : IR 57259-9-2-1-3 Institute • Parent : IR 64/IR 35293-125-3-2-3//PSBRC 4 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 100 - 115 • Plant Height (cm) : 74 - 94 • Productive Tillers : 10.1 ± 4.5 Development • Grain Per Panicle : 105 ± 28 • Panicle Length (cm) : 22.7 ± 8.0 • Resistance to BPH : Moderatelyand susceptible

• Grain Length (mm) : 6.8 • Grain Width (mm) : 2.0 • L:W Ratio : 3.4 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 67.2 • Head Rice Recovery (%) : 50.2 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.6 • Gel Consistency (mm) : 78.0 • GelatinizationAgricultural Temperature : Intermediate/High-intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Very good • Aroma Scent : None

Cambodian

17 Variety: Chul’sa

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Chul'sa

• Line Designation : IR 56383-35-3-2-1 • Parent : IR 28239-94-2-3-6-2/IR 24632Institute -34-2 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 95 - 110 • Plant Height (cm) : 75 - 93 • Productive Tillers : 10.2 ± 4.9 • Grain Per Panicle : 122 ± 26Development • Panicle Length (cm) : 21.7 ± 5.9 • Resistance to BPH : Moderately resistance and

• Grain Length (mm) : 6.8 • Grain Width (mm) : 1.9 • L:W Ratio : 3.6 • Brown Rice Shape : Slender • 100 Grain Weight (g) Research : 3.0 • Milling Recovery (%) : 68.0 • Head Rice Recovery (%) : 56.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 22.2 • Gel Consistency (mm) : 72.0 • Gelatinization Temperature : High • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

19 Variety: Rohat

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Rohat

• Line Designation : IR Kesar-1 Institute • Parent : IR 24632-34-2/IR 31868-64-2-3-3-3 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 105 - 120 • Plant Height (cm) : 81 - 96 • Productive Tillers : 9.7 ± 5.5 • Grain Per Panicle : 115 ± 24Development • Panicle Length (cm) : 24.0 ± 6.0 • Resistance to BPH : Moderately susceptible and

• Grain Length (mm) : 6.7 • Grain Width (mm) : 2.0 • L:W Ratio : 3.4 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 68.2 • Head Rice Recovery (%) : 52.2 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.2 • Gel Consistency (mm) : 91.0 • GelatinizationAgricultural Temperature : Low/Intermediate/High-intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

21 Variety: Rumpe

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Rumpe

• Line Designation : IR 62037-71-3-1-1-3 Institute • Parent : IR 48563-123-5-5-2/PSBRC 10 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 100 - 115 • Plant Height (cm) : 71 - 87 • Productive Tillers : 9.7 ± 3.9 • Grain Per Panicle : 118 ± 25Development • Panicle Length (cm) : 21.0 ± 6.0 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.5 • Grain Width (mm) : 1.9 • L:W Ratio : 3.4 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 66.9 • Head Rice Recovery (%) : 49.6 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.0 • Gel Consistency (mm) : 60.0 • GelatinizationAgricultural Temperature : Intermediate/High-intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Very good • Aroma Scent : None

Cambodian

23 Institute

I. INSENSITIVE TO PHOTOPERIOD

Development

and

Research

II.SENSITIVE TO PHOTOPERIOD

Agricultural

Cambodian

24 Variety: Santepheap 1

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Santepheap 1

• Line Designation : IR 43342-10-1-1-3-3 Institute • Parent : Meedon Hmwe/IR 21313-39-3-2 • Year released : 1992

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 130 - 140 • Plant Height (cm) : 106 - 147 • Productive Tillers : 9.2 ± 3.2 • Grain Per Panicle : 110 ± 27Development • Panicle Length (cm) : 25.7 ± 0.6 • Resistance to BPH : Moderately Susceptible and

• Grain Length (mm) : 7.2 • Grain Width (mm) : 2.2 • L:W Ratio : 3.3 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.63 • Milling Recovery (%) : 73.0 • Head Rice Recovery (%) : 56.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 22.6 • Gel Consistency (mm) : 74.0 • GelatinizationAgricultural Temperature : Low • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

26 Variety: Santepheap 2

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Santepheap 2

• Line Designation : IR 45411-40-2-1 Institute • Parent : SPR 7215-1-25-1-5/IR 20925-238- 2-1-3-3 • Year released : 1992

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 130 - 140 • Plant Height (cm) : 108 - 150 • Productive Tillers : 8.5 ± 3.1 • Grain Per Panicle : 102 ± 20Development • Panicle Length (cm) : 26.9 ± 1.8 • Resistance to BPH : Moderately Susceptible and

• Grain Length (mm) : 7.6 • Grain Width (mm) : 2.2 • L:W Ratio : 3.5 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.59 • Milling Recovery (%) : 70.0 • Head Rice Recovery (%) : 57.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.4 • Gel Consistency (mm) : 55.0 • GelatinizationAgricultural Temperature : Low/Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Variety: Santepheap 3

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Santepheap 3

• Line Designation : OR 142-99 Institute • Parent : Pankaj/Sigadis • Year released : 1992

• Yield (t/ha) : 4.0 - 6.5 • Maturity (DAS) : 140 - 145 • Plant Height (cm) : 106 - 155 • Productive Tillers : 9.2 ± 2.9 • Grain Per Panicle : 105 ± 25Development • Panicle Length (cm) : 27 ± 1.1 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.6 • Grain Width (mm) : 2.6 • L:W Ratio : 2.5 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 2.66 • Milling Recovery (%) : 72.0 • Head Rice Recovery (%) : 57.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 23.3 • Gel Consistency (mm) : 70.0 • GelatinizationAgricultural Temperature : Low/Intermediate • Raw Rice Appearance : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Average • Aroma Scent : None

Cambodian

30 Variety: Popoul

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Popoul

• Line Designation : IR 49830-7-1-2-1-3 Institute • Parent : IR 4568-86-1-3-2/IR 6702-111- 1// IR20992-7-2-2-2-2-3/IR 21567-9-2- 2-2-1 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 130 - 140 • Plant Height (cm) : 84 - 110 Development • Productive Tillers : 8.9 ± 2.7 • Grain Per Panicle : 141and ± 44 • Panicle Length (cm) : 24.0 ± 6.0 • Resistance to BPH : Moderately Susceptible

• Grain Length (mm) : 7.4 • Grain Width (mm) : 2.4 Research • L:W Ratio : 3.1 • Brown Rice Shape : Slender • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 71.7 • Head Rice Recovery (%) : 46.9 • Chalkiness Score : Large (9) • Amylose Content (%) : 25.8 • Gel ConsistencyAgricultural (mm) : 67.0 • Gelatinization Temperature : Low • Raw Rice Appearance : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

32 Variety: Sarika

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Sarika

• Line Designation : IR 49817-SRN-44-B-1-2 Institute • Parent : SPR 7215-1-25-1-5/IR 764-45-2-2// IR 28193-13-2-2 • Year released : 1999

• Yield (t/ha) : 4.0 - 6.0 • Maturity (DAS) : 130 - 140 • Plant Height (cm) : 86 - 106 • Productive Tillers : 10.1 ± 3.0Development • Grain Per Panicle : 134 ± 41 • Panicle Length (cm) : 23.3and ± 6.0 • Resistance to BPH : Moderately Susceptible

• Grain Length (mm) : 7.3 • Grain Width (mm) : 2.4 • L:W Ratio Research : 3.0 • Brown Rice Shape : Medium • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 70.4 • Head Rice Recovery (%) : 51.2 • Chalkiness Score : Medium (5) • Amylose Content (%) : 25.8 • Gel ConsistencyAgricultural (mm) : 62.0 • Gelatinization Temperature : Low • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

34 Variety: Riang Chey

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Riang Chey

• Line Designation : Moo ha pharl-1 Institute • Parent : Moo ha pharl • Year released : 1999

• Yield (t/ha) : 3.5 - 5.5 • Maturity (Date of flowering ) : November 5 - 11 • Plant Height (cm) : 105 - 168 • Productive Tillers : 7.7 ± 2.4 • Grain Per Panicle : 260 ± 74Development • Panicle Length (cm) : 23.0 ± 7.0 • Resistance to BPH : Moderately Susceptible and

• Grain Length (mm) : 6.5 • Grain Width (mm) : 2.1 • L:W Ratio : 3.1 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 67.5 • Head Rice Recovery (%) : 60.5 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.2 • Gel Consistency (mm) : 100.0 • GelatinizationAgricultural Temperature : Intermediate/High-intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

36 Variety: CAR 1

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 1

• Line Designation : Pram'bei kuor-PPD 679 Institute • Parent : Pram'bei kuor • Year released : 1995

• Yield (t/ha) : 2.5 - 4.0 • Maturity (Date of flowering) : November 2 - 9 • Plant Height (cm) : 127 - 177 • Productive Tillers : 7.2 ± 2.1 • Grain Per Panicle : 115 ± 41Development • Panicle Length (cm) : 23.6 ± 2.7 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.4 • Grain Width (mm) : 2.2 • L:W Ratio : 2.9 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 2.09 • Milling Recovery (%) : 68.0 • Head Rice Recovery (%) : 57.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.2 • Gel Consistency (mm) : 55.0 • GelatinizationAgricultural Temperature : Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

38 Variety: CAR 2

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 2

• Line Designation : Sammbark krarharm-PPD 597 • Parent : Sammbark krarharm Institute • Year released : 1995

• Yield (t/ha) : 2.5 - 4.0 • Maturity (Date of flowering) : November 6 - 12 • Plant Height (cm) : 126 - 187 • Productive Tillers : 7.2 ± 1.8 • Grain Per Panicle : 130 ± 35Development • Panicle Length (cm) : 24.3 ± 1.6 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.2 • Grain Width (mm) : 2.2 • L:W Ratio : 2.8 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.08 • Milling Recovery (%) : 68.0 • Head Rice Recovery (%) : 58.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 21.6 • Gel Consistency (mm) : 70.0 • Gelatinization Temperature : Low/Intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

40 Variety: CAR 3

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 3

• Line Designation : Srar-aerm cheab chan-Germ. B-293 • Parent : Srar-aerm cheab chan Institute • Year released : 1995

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering) : October 30 - November 7 • Plant Height (cm) : 122 - 166 • Productive Tillers : 7.7 ± 1.7 • Grain Per Panicle : 118 ± 39Development • Panicle Length (cm) : 22.6 ± 0.5 • Resistance to BPH : Highly Susceptible and

• Grain Length (mm) : 6.4 • Grain Width (mm) : 2.2 • L:W Ratio : 2.9 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 2.36 • Milling Recovery (%) : 74.0 • Head Rice Recovery (%) : 54.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 21.3 • Gel Consistency (mm) : 60.0 • Gelatinization Temperature : Low/Intermediate Agricultural • Raw Rice Appearance : Semi-translucent • Raw Rice Acceptability : Average • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

42 Variety: CAR 11

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 11

• Line Designation : Barnla phdau-PPD 367 • Parent : Barnla phdau Institute • Year released : 1997

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 5 - 11 • Plant Height (cm) : 137 - 173 • Productive Tillers : 7.3 ± 2.2 • Grain Per Panicle : 99 ± 24 Development • Panicle Length (cm) : 25.5 ± 1.0 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 7.6 • Grain Width (mm) : 2.1 • L:W Ratio : 3.6 • Brown Rice Shape : Slender Research • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 67.0 • Head Rice Recovery (%) : 59.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.8 • Gel Consistency (mm) : 98.0 • Gelatinization Temperature : Low • Raw Rice AppearanceAgricultural : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

44 Institute

Development PREMIUM/AROMATIC MEDIUM MATURITY RICEand VARIETIES

WITH SENSITIVITY TO PHOTO PERIOD

Research

Agricultural

Cambodian

Variety: Phka Rumchek

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Phka Rumchek

• Line Designation : Neang sar-1 Institute • Parent : Neang sar • Year released : 1999

• Yield (t/ha) : 3.0 - 5.0 • Maturity (Date of flowering ) : October 25 - November 1 • Plant Height (cm) : 112 - 163 • Productive Tillers : 6.8 ± 2.3 • Grain Per Panicle : 126 ± 20Development • Panicle Length (cm) : 22.0 ± 6.0 • Resistance to BPH : Moderately Susceptible and

• Grain Length (mm) : 7.5 • Grain Width (mm) : 2.1 • L:W Ratio : 3.6 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 67.8 • Head Rice Recovery (%) : 53.4 • Chalkiness Score : None (0) • Amylose Content (%) : 17.3 • Gel Consistency (mm) : 100.0 • GelatinizationAgricultural Temperature : Low • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Very good • Aroma Scent : Scented/Soft texture

Cambodian

47 Variety: Phka Rumchang

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Phka Rumchang

• Line Designation : KDML 105-1 Institute • Parent : Khao Dawk Mali 105 • Year released : 1999

• Yield (t/ha) : 3.0 - 5.0 • Maturity (Date of flowering ) : October 25 - November 1 • Plant Height (cm) : 105 - 154 • Productive Tillers : 5.9 ± 1.5Development • Grain Per Panicle : 129 ± 19 • Panicle Length (cm) : 22.0 ± 6.0 • Resistance to BPH : Moderatelyand Susceptible

• Grain Length (mm) : 7.5 • Grain Width (mm) : 2.2 • L:W Ratio : 3.4 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 67.6 • Head Rice Recovery (%) : 57.9 • Chalkiness Score : None (0) • Amylose Content (%) : 18.0 • Gel Consistency (mm) : 100.0 • GelatinizationAgricultural Temperature : Low • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Excellent • Cooked Rice Acceptability : Very good • Aroma Scent : Scented/Soft texture

Cambodian

49 Variety: Phka Rumduol

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Phka Rumduol

• Line Designation : Somaly- 1771 • Parent : Somaly Institute • Year released : 1999

• Yield (t/ha) : 3.5 - 5.5 • Maturity (Date of flowering ) : October 30 - November 7 • Plant Height (cm) : 107 - 171 • Productive Tillers : 7.8 ± 2.9 • Grain Per Panicle : 133 ± 23Development • Panicle Length (cm) : 22.7 ± 5.5 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 7.5 • Grain Width (mm) : 2.1 • L:W Ratio : 3.6 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 3.0 • Milling Recovery (%) : 67.7 • Head Rice Recovery (%) : 52.8 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.4 • Gel Consistency (mm) : 81.0 • Gelatinization Temperature : Low Agricultural • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Excellent • Cooked Rice Acceptability : Very good • Aroma Scent : Scented/Soft texture

Cambodian

51 Institute

Development

and

Research

Agricultural

Cambodian

52 Variety: CAR 4

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 4

• Line Designation : Charng kaom ropeak-Germ.90 B-528 • Parent : Charng kaom ropeak Institute • Year released : 1995

• Yield (t/ha) : 2.5 - 5.0 • Maturity (Date of flowering) : November 8 - 15 • Plant Height (cm) : 132 - 173 • Productive Tillers : 6.9 ± 1.7 • Grain Per Panicle : 160 ± 34Development • Panicle Length (cm) : 22.9 ± 1.7 • Resistance to BPH : Moderately Susceptible and

• Grain Length (mm) : 6.4 • Grain Width (mm) : 2.2 • L:W Ratio : 2.9 • Brown Rice Shape Research : Medium • 100 Grain Weight (g) : 2.21 • Milling Recovery (%) : 70.0 • Head Rice Recovery (%) : 66.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 21.3 • Gel Consistency (mm) : 68.0 • Gelatinization Temperature : Intermediate Agricultural • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

54 Variety: CAR 5

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 5

• Line Designation : Karn-tuy touk-PPD 156 • Parent : Karn-tuy touk Institute • Year released : 1995

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 10 - 17 • Plant Height (cm) : 134 - 191 • Productive Tillers : 6.9 ± 2.2 • Grain Per Panicle : 157 ± 36Development • Panicle Length (cm) : 25.6 ± 1.6 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.6 • Grain Width (mm) : 2.2 • L:W Ratio : 3.0 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.16 • Milling Recovery (%) : 69.0 • Head Rice Recovery (%) : 66.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 21.3 • Gel Consistency (mm) : 72.0 • Gelatinization Temperature : Low/Intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

56 Variety: CAR 6

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

CAR 6

• Line Designation : Seo nam'ng-Germ. B-429 • Parent : Seo nam'ng Institute • Year released : 1995

• Yield (t/ha) : 2.5 - 5.0 • Maturity (Date of flowering ) : November 9 - 16 • Plant Height (cm) : 129 - 177 • Productive Tillers : 6.9 ± 1.9 • Grain Per Panicle : 155 ± 33Development • Panicle Length (cm) : 22.8 ± 0.9 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.6 • Grain Width (mm) : 2.2 • L:W Ratio : 3.0 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.13 • Milling Recovery (%) : 72.0 • Head Rice Recovery (%) : 67.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 21.6 • Gel Consistency (mm) : 72.0 • Gelatinization Temperature : Intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

58 Variety: CAR 7

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS CAR 7

• Line Designation : Chungkung kreal-PPD 723 • Parent : Chungkung kreal Institute • Year released : 1996

• Yield (t/ha) : 2.5 - 4.0 • Maturity (Date of flowering ) : November 15 - 21 • Plant Height (cm) : 147 - 205 • Productive Tillers : 6.7 ± 1.9 • Grain Per Panicle : 154 ± 40Development • Panicle Length (cm) : 25.9 ± 1.0 • Resistance to BPH : Highly susceptible and

• Grain Length (mm) : 6.2 • Grain Width (mm) : 2.2 • L:W Ratio : 2.8 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.36 • Milling Recovery (%) : 73.0 • Head Rice Recovery : 63.0 • Chalkiness Score : Large (1) • Amylose Content (%) : 25.1 • Gel Consistency (mm) : 42.0 • Gelatinization Temperature : Intermediate/High-intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

60 Variety: CAR 8

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS CAR 8

• Line Designation : Phka sla-PPD 364 • Parent : Phka sla Institute • Year released : 1996

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 19 - 26 • Plant Height (cm) : 146 - 199 • Productive Tillers : 6.9 ± 1.9 • Grain Per Panicle : 190 ± 31Development • Panicle Length (cm) : 23.8 ± 1.8 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 5.8 • Grain Width (mm) : 2.4 • L:W Ratio : 2.4 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.20 • Milling Recovery (%) : 69.0 • Head Rice Recovery (%) : 62.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 22.6 • Gel Consistency (mm) : 72.0 • Gelatinization Temperature : Intermediate/High-intermediate • Raw Rice AppearanceAgricultural :Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

62 Variety: CAR 9

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS CAR 9

• Line Designation : Srau kul-PPD 86 • Parent : Srau kul Institute • Year released : 1996

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 10 - 17 • Plant Height (cm) : 140 - 182 • Productive Tillers : 7.1 ± 2.1 • Grain Per Panicle : 157 ± 35Development • Panicle Length (cm) : 25.9 ± 1.3 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 6.4 • Grain Width (mm) : 2.2 • L:W Ratio : 2.9 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.36 • Milling Recovery (%) : 70.0 • Head Rice Recovery (%) : 61.0 • Chalkiness Score : Small (1) • Amylose Content (%) : 23.6 • Gel Consistency (mm) : 50.0 • Gelatinization Temperature : Intermediate/High-intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Variety: CAR 12

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS CAR 12

• Line Designation : Koon trei khmau-Germ. A 66 • Parent : Koon trei khmau Institute • Year released : 1997

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 17 - 24 • Plant Height (cm) : 149.0 • Productive Tillers : 7.3 ± 2.1 • Grain Per Panicle : 143 ± 51Development • Panicle Length (cm) : 25.3 ± 1.2 • Resistance to BPH : Moderately resistance and

• Grain Length (mm) : 6.6 • Grain Width (mm) : 2.5 • L:W Ratio : 2.6 • Brown Rice Shape : Medium Research • 100 Grain Weight (g) : 2.0 • Milling Recovery (%) : 67.0 • Head Rice Recovery (%) : 58.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 26.0 • Gel Consistency (mm) : 67.0 • Gelatinization Temperature : Intermediate • Raw Rice AppearanceAgricultural : Semi-translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Variety: CAR 13

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS CAR 13

• Line Designation : Neang minh tun-PPD 375 • Parent : Neang minh tun Institute • Year released : 1997

• Yield (t/ha) : 2.5 - 4.5 • Maturity (Date of flowering ) : November 19 - 26 • Plant Height (cm) : 154.0 • Productive Tillers : 7.4 ± 2.0 • Grain Per Panicle : 139 ± 27Development • Panicle Length (cm) : 24.3 ± 2.1 • Resistance to BPH : Susceptible and

• Grain Length (mm) : 5.9 • Grain Width (mm) : 2.0 • L:W Ratio : 2.9 • Brown Rice Shape : Medium • 100 Grain Weight (g) Research : 2.0 • Milling Recovery (%) : 68.0 • Head Rice Recovery (%) : 57.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 23.0 • Gel Consistency (mm) : 72.0 • Gelatinization Temperature : Intermediate/High-intermediate • Raw Rice AppearanceAgricultural : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Institute

Development

and For water depth up to 1.5m

Research

Agricultural

Cambodian

69 Variety: Don

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Don

• Line Designation : HTAFR 77022-45-3-2-1 Institute • Parent : SPR 7270-18/KNN 111 • Year released : 1991

• Yield (t/ha) : 2.0 - 4.5 • Maturity (Date of flowering ) : November 20 - 27 • Plant Height (cm) : 195 - 254 • Productive Tillers : 7.7 ± 1.0Development • Grain Per Panicle : 183 ± 20 • Panicle Length (cm) : 26.8 ± 2.0 • Resistance to BPH : - and

• Grain Length (mm) : 7.8 • Grain Width (mm) : 2.2 • L:W Ratio : 3.5 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 2.9 • Milling Recovery (%) : 71.0 • Head Rice Recovery (%) : 57.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 21.6 • Gel Consistency (mm) : 48.0 • GelatinizationAgricultural Temperature : Low/Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

71 Variety: Khao Tah Petch

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS

Khao Tah Petch

• Line Designation : Khao Tah Petch Institute • Parent : Khao Tah Petch • Year released : 1991

• Yield (t/ha) : 2.0 - 4.0 • Maturity (Date of flowering ) : November 15 - 22 • Plant Height (cm) : 202 - 207 • Productive Tillers : 7.5 ± 1.2 • Grain Per Panicle : 104 ± 7 Development • Panicle Length (cm) : 30.9 ± 3.2 • Resistance to BPH : - and

• Grain Length (mm) : 7.8 • Grain Width (mm) : 2.2 • L:W Ratio : 3.5 • Brown Rice Shape Research : Slender • 100 Grain Weight (g) : 3.07 • Milling Recovery (%) : 66.0 • Head Rice Recovery (%) : 45.0 • Chalkiness Score : Medium (5) • Amylose Content (%) : 26.4 • Gel Consistency (mm) : 100.0 • GelatinizationAgricultural Temperature : Intermediate • Raw Rice Appearance : Translucent • Raw Rice Acceptability : Good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

73 Variety: Tewada

Institute

Development

and

Research

Agricultural

Cambodian

VARIETAL CHARACTERISTICS Tewada

• Line Designation : Tewada • Parent : Tewada Institute • Year released : 1991

• Yield (t/ha) : 2.0 - 4.0 • Maturity (Date of flowering) : November 12 - 19 • Plant Height (cm) : 201 - 205 • Productive Tillers : 7.1 ± 0.7 • Grain Per Panicle : 104 ± 5 Development • Panicle Length (cm) : 29.3 ± 3.9 • Resistance to BPH : - and

• Grain Length (mm) : 7.6 • Grain Width (mm) : 2.2 • L:W Ratio : 3.5 • Brown Rice Shape : Slender Research • 100 Grain Weight (g) : 3.03 • Milling Recovery (%) : 68.0 • Head Rice Recovery (%) : 50.0 • Chalkiness Score : Large (9) • Amylose Content (%) : 27.4 • Gel Consistency (mm) : 100.0 • Gelatinization Temperature : Intermediate • Raw Rice AppearanceAgricultural : Translucent • Raw Rice Acceptability : Very good • Cooked Rice Acceptability : Good • Aroma Scent : None

Cambodian

Institute The Plant Breeding Program was established in 1989. Since then, traditional rice varieties have been collecting, evaluating, conserving and utilizing. Meanwhile, introduction of improved materials has started and crosses have been made. As the results, 34 rice varieties have been released for different rice-ecosystems in Cambodia. A basic seed production system has beenDevelopment developed in order to maintain seed purity and, to some extend, to respond to seed grower’s (NGOs and farmers) demand. The program is mandated and(i) to conserve, (ii) to develop high yielding varieties with acceptable quality and (iii) to maintain seed purity of various agricultural crops.

Research

Agricultural