Special Issue: Iconic Rice Varieties David J
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Ecological Differentiation and Incipient Speciation in the Fungal Pathogen Causing
bioRxiv preprint doi: https://doi.org/10.1101/2020.06.02.129296; this version posted June 3, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-NC-ND 4.0 International license. 1 ECOLOGICAL DIFFERENTIATION AND INCIPIENT SPECIATION IN THE FUNGAL PATHOGEN CAUSING 2 RICE BLAST 3 Maud THIERRY1,2,3, Joëlle MILAZZO1,2, Henri ADREIT1,2, Sébastien RAVEL1,2,4, Sonia BORRON1, Violaine 4 SELLA3, Renaud IOOS3, Elisabeth FOURNIER1, Didier THARREAU1,2,5, Pierre GLADIEUX1,5 5 1UMR BGPI, Université de Montpellier, INRAE, CIRAD, Institut Agro, F-34398 Montpellier, France 6 2 CIRAD, UMR BGPI, F-34398 Montpellier, France. 7 3ANSES Plant Health Laboratory, Mycology Unit, Domaine de Pixérécourt, Bâtiment E, F-54220 Malzéville, France 8 4 South Green Bioinformatics Platform, Alliance Bioversity-international CIAT, CIRAD, INRAE, IRD, Montpellier, 9 France. 10 [email protected]; [email protected] 11 12 ABSTRACT 13 Natural variation in plant pathogens has an impact on food security and ecosystem health. The rice 14 blast fungus Pyricularia oryzae, which limits rice production in all rice-growing areas, is structured into 15 multiple lineages. Diversification and the maintenance of multiple rice blast lineages have been 16 proposed to be due to separation in different areas and differential adaptation to rice subspecies. 17 However, the precise world distribution of rice blast populations, and the factors controlling their 18 presence and maintenance in the same geographic areas, remain largely unknown. -
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California Rice Production Workshop, v15 Variety Selection and Management Introduction and History Since its beginning in 1912, California’s rice industry limited its produc - tion and marketing largely to a few short and medium grain japonica varieties, developed from stocks originating in Japan and China. These varieties produced good yields of quality rice in the dry, temperate cli - mate of the Sacramento and San Joaquin Valleys. For the grower, the choice of variety to plant was relatively simple because the few varieties available were similar in performance, yield potential and milling qual - ity when properly managed. Included were Colusa, Caloro and Calrose released in 1918, 1921 and 1948, respectively, and Earlirose, a productive, early maturing, proprietary variety, released in 1965 which soon became a popular variety for cold areas and/or late plantings. These were the major rice varieties grown in California until the early 1970’s. Then, the variety picture began to change significantly. A powerful impetus for this was the enactment of California Rice Research Marketing Order that established the California Rice Research Board in 1969. This grower initiative provided significant and regular funding to hasten development and release of new varieties. The medium grain variety CS-M3 was released in 1970 and the short grain variety CS-S4 in 1971, from rice hybridizations made in 1946 and 1957 at the Rice Experiment Station (RES) at Biggs, CA. CS-M3 gained wide acceptance and competed with the older Calrose for acreage. But, CS-S4, though an improvement over Caloro, was not widely grown because of its suscep - Publicly devel - tibility to low temperature induced sterility. -
Evaluation of Japonica Rice (Oryza Sativa L.) Varieties and Their Improvement in Terms of Stability, Yield and Cooking Quality by Pure-Line Selection in Thailand
ESEARCH ARTICLE R ScienceAsia 46 (2020): 157–168 doi: 10.2306/scienceasia1513-1874.2020.029 Evaluation of japonica rice (Oryza sativa L.) varieties and their improvement in terms of stability, yield and cooking quality by pure-line selection in Thailand Pawat Nakwilaia, Sulaiman Cheabuc, Possawat Narumona, Chatree Saensukb, Siwaret Arikita,b, a,b, Chanate Malumpong ∗ a Department of Agronomy, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Nakhon Pathom 73140 Thailand b Rice Science Center & Rice Gene Discovery Unit, Kasetsart University, Nakhon Pathom 73140 Thailand c Faculty of Agriculture, Princess of Naradhiwas University, Narathiwat 96000 Thailand ∗Corresponding author, e-mail: [email protected] Received 3 Aug 2019 Accepted 3 Apr 2020 ABSTRACT: Many companies in Thailand have encouraged farmers, especially those in the northern regions, to cultivate DOA1 and DOA2 japonica rice varieties. Recently, the agronomic traits of DOA1 and DOA2 were altered, affecting yield and cooking quality. Thus, the objectives of this study were to evaluate the agronomic traits and cooking quality of DOA1 and DOA2 and those of exotic japonica varieties in different locations, including the Kamphaeng Saen and Phan districts (WS16). DOA2 was improved by pure-line selection. The results showed that the Phan district was better suited to grow japonica varieties than the Kamphaeng Saen district and that DOA2 produced high grain yields in both locations. Furthermore, DOA2 was selected by the pure-line method in four generations, after which five candidate lines, Tana1 to Tana5, were selected for yield trials. The results of yield trials in three seasons (WS17, DS17/18, WS18) confirmed that Tana1 showed high performance in terms of its agronomic traits and grain yield. -
The Rice Crisis: Markets, Policies and Food Security
‘This book, with chapters from many prominent experts, Crisis Rice The presents new evidence from the recent rice price crisis and draws lessons for preventing the next crisis. It is a unique set of references on global food security and the world rice market.’ shenggen Fan, director General, international Food Policy Research institute (iFPRi) ‘This book is a must-read for those who wish to understand the world rice market, trade policies and food security concerns. The Rice Crisis It provides a careful and detailed analysis of the causes and consequences of the 2007 and 2008 global rice crisis. It is written by knowledgeable experts from the key MaRkeTs, PoliCies and Food seCuRiT y rice economy nations.’ Professor eric J. wailes, university of arkansas, usa r-...... he recent escalation of world food prices – particularly for cereals T– prompted mass public indignation and demonstrations in many countries, from the price of tortilla flour in Mexico to that of rice in the Philippines and pasta in Italy. The crisis has important implications for future government trade and food security policies, as countries -3 re-evaluate their reliance on potentially more volatile world markets to augment domestic supplies of staple foods. This book examines how government policies caused and responded to soaring world prices in the particular case of rice, which is the world’s most important source of calories for the poor. Comparable case studies of policy reactions in different countries (principally across Asia, but also including the USA and Africa) provide the understanding necessary to evaluate the impact of trade policy on the food security of poor farmers and consumers. -
2015 Top 100 Founders Whether It’S in Plant Breeding Or Business, Policy Or Marketing, Sales Or Education, Leadership in the Seed Industry Takes Many Forms
FOUNDERS SERIES PART 6 OF 6 2015 Top 100 Founders Whether it’s in plant breeding or business, policy or marketing, sales or education, leadership in the seed industry takes many forms. Meet the most transformational men and women in the seed industry during the past 100 years. From all across the globe, they shape your world. THESE ARE THE individuals his first batch of okra seeds research stations and farmers’ fields of Mexico that Borlaug who have provided leadership to his neighbors, his com- developed successive generations of wheat varieties with broad during trying times, insight to pany contracts with more and stable disease resistance, broad adaptation to growing con- complex issues, and a com- than 100,000 growers. Since ditions across many degrees of latitude and with exceedingly mitment to something larger then, seed distribution in India high yield potential. These new wheat varieties and improved than self. has grown 40-fold. In 1998, crop management practices transformed agricultural produc- The 100 founders of the he received the World Food tion in Mexico during the 1940s and 1950s and later in Asia and seed industry that we’ve Prize award and invested that Latin America, sparking the Green Revolution. Because of his chosen to represent the money into research pro- achievements and efforts to prevent hunger, famine and misery dramatic changes during the grams for hybrid rice varieties. around the world, it is said that Borlaug has saved more lives past century have all left a than any other person who has ever lived. tremendous mark — be it in Henry Beachell plant breeding, technology, Creator of IR8 Rice Kent Bradford business or the policy arena — Today, most of the rice Launched the Seed Biotechnology Center that impacts the seed indus- grown in the world comes Through workshops and courses, the try. -
Cooking Quality of Sake Rice Variety “Yamadanishiki”
日本調理科学会誌 Vol.Cooking Quality of Sake 46,No. Rice 3,213~220(2013)Variety “Yamadanishiki”〔Note〕 Cooking Quality of Sake Rice Variety “Yamadanishiki” Tomochika Mizuma*§ In the present study, the cooking quality of the major sake rice variety Yamadanishiki was compared with that of the table-rice variety Koshihikari.(1) Yamadanishiki characteristically contains a certain percentage of white-core grains(grains having a white opaque structure in the center) apart from ordinary non white-core grains. The water absorption rate of white-core grains was higher than that of their ordinary non white-core counterparts. This difference in the water absorption rates could be associated with uneven cooking, particularly if the soaking periods were insufficient. (2) When compared to Koshihikari, Yamadanishiki yielded a larger volume of cooked rice from a smaller amount of raw rice. Sensory texture evaluation showed that cooked Yamadanishiki rice had a good eating quality that was comparable to Koshihikari.(3) Cooked Yamadanishiki rice showed unique texture properties(hard, elastic, and less sticky) that were not found in Koshihikari. From the above results, the application of the unique texture of Yamadanishiki rice in cooking is expected in the future.(4) These texture properties and the cooking quality of Yamadanishiki appear to be related to the high amylose content and unique characteristics of sake rice (i.e., white-core structure and large-sized kernels). Keyword:sake rice, white-core grains, cooked rice, sensory evaluation, texture consumer needs and declining table-rice consumption, the INtroductIoN Japanese rice farming industry has made considerable Sake rice is a type of rice suitable for brewing Japanese efforts to establish novel cultivars of rice with characteris- sake(rice wine). -
Final Report V1.2 Q01108 12 NOV 07
Rice LabChip Analysis - Q01108 Adaptation Of DNA Analysis Techniques for the Analysis of Basmati Rice Varieties, Adulterant Varieties and other Fragrant Rice Varieties for use on the Agilent 2100 BioAnalyzer Final Technical Report October 2007 12 June 2006 – 20 June 2007 Katherine Steele and Rob Ogden Page 1 of 27 Table of Contents 1. Executive Summary 3 2. Glossary 5 3. Aims and Objectives of the Investigation 6 3.1 Why is enforcement needed for basmati rice? 6 3.2 Existing basmati rice tests with SSR markers 7 3.3 Alternative marker systems for rice 7 3.4 Aims and Objectives 8 4. Experimental Procedures 9 4.1. Sourcing of standard varieties and DNA extraction 9 4.2. Testing INDEL markers in different rice genotypes 10 4.3. Testing Rim2/Hipa and ISSR markers in different rice genotypes 10 4.4. Optimizing multiplex PCRs for INDELS 10 4.5. Developing a SOP for variety analysis of bulk extracts using the LabChip system 10 4.6. Optimizing existing SSRs for LabChip analysis 11 4.7. Evaluating INDEL markers for quantitative testing 11 5. Results and Discussion 12 5.1 Results with INDEL markers 12 5.2 Results with Rim2/Hipa and ISSR markers 12 5.3 Database of markers 14 5.4 Development of INDEL markers for variety testing 16 5.5 Quantitative analysis 16 5.6 Problems encountered when adapting the tests for the Agilent Bioanalyzer 17 6. Acknowledgements 17 7. References 18 Appendices 20 Page 2 of 27 1. Executive Summary Aromatic basmati rice is sold at a premium price on the world market. -
Genetic and Molecular Analysis of Utility of Sd1 Alleles in Rice Breeding
Breeding Science 57 : 53–58 (2007) Genetic and Molecular Analysis of Utility of sd1 Alleles in Rice Breeding Kenji Asano1), Tomonori Takashi2), Kotaro Miura1), Qian Qian3), Hidemi Kitano1), Makoto Matsuoka1) and Motoyuki Ashikari*1) 1) Bioscience and Biotechnology Center, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8601, Japan 2) Honda Research Institute Japan Co., Ltd., 2-1-4 Kazusa-Kamatari, Kisarazu, Chiba 292-0818, Japan 3) China National Rice Research Institute, Hangzhou, Zhejiang 310006, China The widespread adoption of the high-yielding semi-dwarf rice variety, IR8, led to the “green revolution” in Asia in the 1960s. The short stature of this variety is due to a loss-of-function of the SD1 gene that encodes a GA20 oxidase-2 (GA20ox-2) which catalyzes late steps of gibberellin biosynthesis. In this study, we inves- tigated how widely sd1 mutations have been employed in the generation of semi-dwarf varieties of rice. Ge- netic and molecular analyses revealed that the sd1 allele of IR8 has been used in the production of japonica varieties. Sequence analysis of the SD1 locus of 57 semi-dwarf varieties showed that at least 7 sd1 alleles have been used in the breeding of semi-dwarf rice varieties in China, USA and Japan. The utilization of such a high number of different alleles all controlling the same target trait highlights that mutations in GA20ox-2 induce an agronomically advantageous architecture in rice. Key Words: rice, semi-dwarf, sd1, IR8. Introduction (IRRI), contributed to the green revolution in Asia. IR8 was bred by crossing between a Taiwanese native semi-dwarf In the 1960s, the rapid expansion of the world popula- variety, Dee-geo-woo-gen (DGWG), which carries the semi- tion and dramatic decrease in cultivated lands raised concern dwarf 1 (sd1) gene, and an Indonesian good-taste variety, that food production would not meet the growing demand, Peta (Hargrove and Cabanilla 1979, Dalrymple 1986). -
Hybrid Rice As a Pro-Poor Technology? Evidence from Bangladesh
Hybrid Rice as a Pro-Poor Technology? Evidence from Bangladesh William McFall, Graduate Student Department of Agricultural and Applied Economics, University of Georgia 309 Conner Hall, Athens GA, 30602 Email: [email protected] Nicholas Magnan, Assistant Professor Department of Agricultural and Applied Economics, University of Georgia 315C Conner Hall, Athens GA, 30602 Email: [email protected] David J. Spielman International Food Policy Research Institute 2033 K St NW, Washington DC, 20006 Email: [email protected] Selected Paper prepared for presentation at the Agricultural & Applied Economics Association’s 2013 AAEA & CAES Joint Annual Meeting, Washington, DC, August 4-6, 2013. Copyright 2013 by William McFall Nicholas Magnan, and David J. Spielman. All rights reserved. Readers may make verbatim copies of this document for non-commercial purposes by any means, provided that this copyright notice appears on all such copies. Hybrid Rice as a Pro-Poor Technology? Evidence from Bangladesh William McFall, Nicholas Magnan, David J. Spielman ABSTRACT We examine the use of hybrid rice as a pro-poor technology for subsistence rice farmers in South Asia. Hybrids, for which seed cannot be saved, is often thought to be ill-suited for poor farmers. However, poor subsistence farmers may find it advantageous to produce “sticky” hybrid rice instead of generally preferred slender open pollinated varieties, even though there is little market demand for it. We use two separately estimated double hurdle models to model the decision making process of subsistence rice-producing households as they allocate their land and consumption bundle between hybrid and open pollinated rice varieties. We find that relatively rich households are more likely to adopt hybrid rice. -
International Seminar on Promoting Rice Farmers' Market Through Value-Adding Activities
International Seminar on Promoting Rice Farmers' Market through value-adding Activities June 6-7, 2018 Faculty of Economics Kasetsart University, Thailand Organized by Food and Fertilizer Technology Center for the Asian and Pacific Region (FFTC) Faculty of Economics, Kasetsart University Agricultural Economics Society of Thailand under Royal Patronage The Thailand Research Fund (TRF) Promoting Rice Farmers’ Market through Value-adding Activities Proceedings of the International Seminar on Promoting Rice Farmers’ Market through Value-adding Activities June 6-7, 2018 Faculty of Economics, Kasetsart University Bangkok, Thailand Organized by Food and Fertilizer Technology Center for the Asian and Pacific Region (FFTC) Faculty of Economics, Kasetsart University Agricultural Economics Society of Thailand under Royal Patronage The Thailand Research Fund (TRF) Contents Page Messages Dr. Kuo-Ching Lin i Director, FFTC Dr. Chongrak Wachrinrat ii Acting President, Kasetsart University Associate Professor Dr. Vijitsri Sanguanwongse iii Dean, Faculty of Economics, Kasetsart University Seminar Program iv PAPER PRESENTATIONS 1. Thailand’s rice industry and current policies 1 towards high value rice products Dr. Apichart Pongsrihadulchai 2. Evaluation of policy performance and profit efficiency of 12 rice production and marketing areas in Taiwan Prof. Min-Hsien Yang 3. Rice farming in the Japan’s matured market: overcoming 24 the shrinking domestic demand by value-adding and export-enhancing strategies Prof. Katsumi Arahata 4. The value chain and rice price policy in Indonesia 35 Prof. Muhammad Firdaus 5. Roles of agricultural cooperatives in joint production-consumption 46 linkage model related to large scale rice fields in Mekong Delta Dr. Hoang Vu Quang 6. Performance of rice industry in India: potential 59 opportunities and challenges Dr. -
Internat Onal Journal of Agr Culture, Env Ronment and Food Sc Ences
Internatonal Journal of Agrculture, Envronment and Food Scences JAEFS e-ISSN : 2618-5946 DOI: 10.31015/jaefs.18016 www.jaefs.com Research Article Int J Agric Environ Food Sci 2(3):99-103 (2018) Physicochemical properties and morphological observations of selected local rice varieties in northern Afghanistan Zubair Noori1,2,* Mohammad Wasif Mujadidi2,3 Mohammad Wasif Amin4 1The College of Agriculture, Ibaraki University, Ami, Ibaraki 300-0393, Japan 2Kunduz Agriculture Department, Ministry of Agriculture, Irrigation, and Livestock of Afghanistan 3Faculty of Agriculture, Kandahar University (KU), Kandahar City, Afghanistan 4Tokyo University of Agriculture, Setagaya-ku, Tokyo, 156-8502, Japan *Corresponding Author: [email protected] Abstract In this study, milled rice (Oryza sativa L.) samples of local varieties (Sarda Barah, Garma Barah, Surkha Zurahti and Shah Lawangi) were procured from Kunduz province, Afghanistan and check varieties (Koshihikari and Super Basmati) from Japan. We conducted the research in the Laboratory of Crop Science of Ibaraki University, Japan during February in 2018, to clarify the physicochemical and morphological traits on different local rice varieties. The results demonstrated that local rice varieties (Sarda Barah, Garma Barah, Surkha Zurahti and Shah Lawangi) from Afghanistan including Super Basmati (Check) with long and slender grains, associated with significantly higher grain amylose and protein contents of 22.9 and 8.1%, respectively, which created in declined taste points. While, Koshihikari with short and medium grain types demonstrated the lowest grain amylose and protein contents of 17.7 and 5.5%, respectively, which amplified grain taste point. The micrographs observations revealed that there were no obvious alterations in the endosperm of translucent grains across varieties. -
Brochure-World of Flavors.Pdf
SZECHWAN SHRIMP OVER COCONUT RICE Ingredients 4 Servings 12 Servings SAVORING Weights Measures Weights Measures Calrose or New Variety, uncooked medium grain rice 6 oz 1 cup 1 lb 2 oz 3 cups Water 3/4 cup 2 1/4 cups Coconut milk 3/4 cup 2 1/4 cups CALIFORNIA Butter 1 tbsp 3 tbsp TO MAKE SURE YOU RE Salt 1/2 tsp 1 1/2 tsp ’ Honey 1/3 cup 1 cup USING THE FINEST CALIFORNIA RICE… Soy sauce 3 tbsp 1/2 cup Chili garlic paste 3 tbsp 1/2 cup Shrimp, large and peeled 1 lb 3 lbs RICE LOOK FOR OUR CALIFORNIA PREMIUM RICE SEAL OR CHOOSE ONE OF THESE BRANDS THROUGH YOUR AREA SUPPLIER Vegetable oil 1 tbsp 3 tbsp Bell peppers, any color, matchstick strips 3 oz 1 cup 9 oz 3 cups Carrots, matchstick strips 3 1/2 oz 1 cup 10 1/2 oz 3 cups Snow peas, strips 2 3/4 oz 1 cup 8 3/4 oz 3 cups SWEET &SAVORY PILAF Sliced green onions 1/4 cup 3/4 cup DIRECTIONS: Ingredients 4 Servings 12 Servings TM Weights Measures Weights Measures 1. To prepare rice, combine rice, water, coconut milk, butter and salt in a large pot. Bring to a boil; reduce heat and simmer, covered, Butter 1 oz 2 tbsp 3 oz 6 tbsp for 20 minutes. Remove from heat and let stand for 10 minutes. Calrose uncooked medium grain rice 7 oz 1 cup 1 lb 5 oz 3 cups 2. To prepare shrimp, whisk together honey, soy sauce and chili TM Shallots, sliced 2 oz 2 medium 6 oz 6 medium garlic paste in a large bowl.