Florida Citrus Germplasm Introduction Program
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Reaction of Tangerines Genotypes to Elsinoe Fawcettiiunder
Reaction of tangerines genotypes to Elsinoe fawcettii under natural infection conditions Crop Breeding and Applied Biotechnology 11: 77-81, 2011 Brazilian Society of Plant Breeding. Printed in Brazil Reaction of tangerines genotypes to Elsinoe fawcettii under natural infection conditions Marcelo Claro de Souza1*, Eduardo Sanches Stuchi2 and Antonio de Goes3 Received 11 February 2010 Accepted 30 September 2010 ABSTRACT - A citrus scab disease, caused by Elsinoe fawcettii, is currently found in all citrus areas throughout Brazil. That being, given the importance of this casual agent, the behavior of tangerines and hybrids influenced by this pathogen was evaluated under natural infection conditions. This study was performed with plants around 15 years old without irrigation; 100 fruits of three plants were collected during harvest season, using a grade scale varying from 0 (absence of symptoms) to 6 (severe symptoms) the level of disease severity was determined. Among the cultivars, citrus scab resistance was observed in Citrus deliciosa, C. tangerina, C. nobilis; a mandarin hybrid (C. nobilis x C. deliciosa) and a satsuma hybrid (C. unshiu x C. sinensis). Among the other genotypes, symptoms were observed with levels of severity ranging from 1 to 3, indicating moderate resistance. Key words: Citrus scab, citrus crop, resistant varieties. INTRODUCTION In Brazil, E. fawcettii is responsible for citrus scab. The disease is widespread in many humid, citrus-cultivating In many citrus production areas around the world, areas around the world and decreases fruit values on the Elsinoe fawcettii is one of the main fungi diseases found. fresh-fruit market (Feichtenberger et al. 1986). In young It attacks a wide variety of citrus species and cultivars, plants or under severe infection, it may cause significant resulting in scab disease on leaves, twigs, and fruits (Timmer fruit drop. -
The Reproductive Phenology of Citrus. II: Citrus Floral Ontogeny
The reproductive phenology of Citrus. II: Citrus floral ontogeny JAKKIE (OPJ) STANDER Citrus Research International, Department of Horticultural Science, University of Stellenbosch, Private Bag X1, 7602, Matieland. E-mail: [email protected] OPSOMMING: • Hoё vlakke van interne ouksiene (IAA) three articles on the physiology of citrus • Meerderheid sitrus-spesies blom gedurende afkomstig van vrugte, inhibeer die vorming flowering, and will focus on the important die lente. Die verskynsel word voorafgegaan van nuwe blom dra-posisies gedurende die chronological events pertaining to the devel- deur ʼn blom-ontwikkelingsproses gedurende somer. opment of a citrus flower, as influenced by die herfs en winter (Mei-Julie). • Vroeё verwydering van vrugte (uitdunning endogenous factors, environmental condi- • Blom-induksie (BI) is die eerste en bepalen- in “aan”-jaar) verminder die inhiberende ef- tions and cultural practices. de stap in die blom-ontwikkelingsproses. fek van ouksiene op ontwikkeling van nuwe • Water stres inisieёr BI in warm, somer- lote (apikale dominansie) en stimuleer die Inleiding reёnval streke en genoegsame lae tempera- vorming van nuwe dra-posisies. Sitrus is ʼn immergroen boom wat ʼn kom- ture (15-20°C) in koeler, winter-reёnval • Lae koolhidraat-vlakke gedurende periode plekse boomstruktuur onderhou deur een streke. van blom-ontwikkeling beperk die potensi- tot drie jaarlikse vegetatiewe groei-fases. Na • Die belangrike FT-geen, is onlangs in aal vir blom-knop ontwikkeling en kan lei tot induksie van nuutgevormde vegetatiewe lote blom-plante geidentifiseer en sy uitdrukking swak blom-ontwikkeling. deur genoegsame geakkumuleerde lae tem- is direk gekoppel aan tyd van blom, sowel as • Verwydering van vrugte gedurende ʼn aan- perature en/of water stress gedurende die blom-intensiteit. -
"Performance of Citrus Scion Cultivars and Rootstocks in a High-Density
REPORTS HORTSCIENCE 26(7):837-840. 1991. house and planted in the field in 1981. A split plot experiment and analysis of variance Performance of Citrus Scion Cultivars (ANOVA) statistics were used with four rep- lications, with cultivar as the main plot and and Rootstock in a High-density rootstock as the subplot. Field plots were four ´ four trees, with data taken from the Planting center four of the 16 trees. They were planted 1.5 m in the row and 3.3 m between rows T.A. Wheaton, W.S. Castle, J.D. Whitney, and D.P.H. Tucker and were irrigated and fertigated as required Citrus Research and Education Center, University of Florida, Institute of to maintain optimal soil water and nutrient levels using one microsprinkler per two trees. Food and Agricultural Sciences, 700 Experiment Station Road, Lake Trees were mechanically hedged and topped Alfred, FL 33850 during Summer 1987 and hedged again in 1989 to maintain a 1.5-m alley between rows Additional index words. tree spacing, yield efficiency and a 2.5-m tree height. Thus, the canopy Abstract. ‘Hamlin’ and ‘Valencia’ oranges [Citrus sinensis (L.) Osb.], ‘Murcott’ tangor size allocated for each tree was 1.5 m in the (C. reticulata Blanco ´ C. sinensis), and ‘Redblush’ grapefruit (C. paradisi Macf.) on row, 1.8 m across the row, and 2.5 m in 15 rootstock and own-rooted cuttings were planted at a 1.5 ´ 3.3-m spacing providing height, providing 6.8 m3 of canopy volume a density of 2020 trees/ha. -
Tropical Horticulture: Lecture 32 1
Tropical Horticulture: Lecture 32 Lecture 32 Citrus Citrus: Citrus spp., Rutaceae Citrus are subtropical, evergreen plants originating in southeast Asia and the Malay archipelago but the precise origins are obscure. There are about 1600 species in the subfamily Aurantioideae. The tribe Citreae has 13 genera, most of which are graft and cross compatible with the genus Citrus. There are some tropical species (pomelo). All Citrus combined are the most important fruit crop next to grape. 1 Tropical Horticulture: Lecture 32 The common features are a superior ovary on a raised disc, transparent (pellucid) dots on leaves, and the presence of aromatic oils in leaves and fruits. Citrus has increased in importance in the United States with the development of frozen concentrate which is much superior to canned citrus juice. Per-capita consumption in the US is extremely high. Citrus mitis (calamondin), a miniature orange, is widely grown as an ornamental house pot plant. History Citrus is first mentioned in Chinese literature in 2200 BCE. First citrus in Europe seems to have been the citron, a fruit which has religious significance in Jewish festivals. Mentioned in 310 BCE by Theophrastus. Lemons and limes and sour orange may have been mutations of the citron. The Romans grew sour orange and lemons in 50–100 CE; the first mention of sweet orange in Europe was made in 1400. Columbus brought citrus on his second voyage in 1493 and the first plantation started in Haiti. In 1565 the first citrus was brought to the US in Saint Augustine. 2 Tropical Horticulture: Lecture 32 Taxonomy Citrus classification based on morphology of mature fruit (e.g. -
Effect of Temperature on Germination of Citrus Macroptera, Citrus Latipes and Citrus Indica Seeds *Anamika Upadhaya, Shiva S
ISSN. 0972 - 8406 The NEHU Journal Vol. XVII, No. 1 (January - June) and No. 2 (July - December) 2019, pp. 12-20 Effect of temperature on germination of Citrus macroptera, Citrus latipes and Citrus indica seeds *Anamika Upadhaya, Shiva S. Chaturvedi, Brajesh K. Tiwari and Dibyendu Paul Department of Environmental Studies, North Eastern Hill University Umshing, Meghalaya, India – 793022 *Corresponding author : [email protected] Abstract Seeds are an important means of propagation of Citrus species. Seeds of three wild Citrus namely; Citrus macroptera Montrouz., Citrus latipes (Swingle) Tanaka and Citrus indica Tanaka were germinated at 20°C, 25°C, 30°C and 35°C temperature to observe the effect of temperature on germination. Mean germination time and percentage seed germinated were recorded and used to determine optimum temperature for germination. Viability of seeds determined using chemical and germination tests yielded similar results. Optimum temperature for germination was found to be 28°C for C. macroptera and C. latipes and 26°C for C. indica. Keywords: Germination, wild, C. macroptera, C. latipes, C. indica, Meghalaya Introduction Citrus has been domesticated since ancient times, and where ‘natural’ populations are located, it is often difficult to determine whether they represent wild ancestors or are derived from naturalized forms of introduced varieties. Though relatively rare in wild, Citrus are mostly found as scattered trees in primary forests in remote areas rather than as pure stands. In India, a vast reservoir of Citrus diversity exists both in wild and in cultivated forms. North-eastern India is considered as natural home of many Citrus species with wide occurrence of indigenous species like C. -
Chapter 1 Definitions and Classifications for Fruit and Vegetables
Chapter 1 Definitions and classifications for fruit and vegetables In the broadest sense, the botani- Botanical and culinary cal term vegetable refers to any plant, definitions edible or not, including trees, bushes, vines and vascular plants, and Botanical definitions distinguishes plant material from ani- Broadly, the botanical term fruit refers mal material and from inorganic to the mature ovary of a plant, matter. There are two slightly different including its seeds, covering and botanical definitions for the term any closely connected tissue, without vegetable as it relates to food. any consideration of whether these According to one, a vegetable is a are edible. As related to food, the plant cultivated for its edible part(s); IT botanical term fruit refers to the edible M according to the other, a vegetable is part of a plant that consists of the the edible part(s) of a plant, such as seeds and surrounding tissues. This the stems and stalk (celery), root includes fleshy fruits (such as blue- (carrot), tuber (potato), bulb (onion), berries, cantaloupe, poach, pumpkin, leaves (spinach, lettuce), flower (globe tomato) and dry fruits, where the artichoke), fruit (apple, cucumber, ripened ovary wall becomes papery, pumpkin, strawberries, tomato) or leathery, or woody as with cereal seeds (beans, peas). The latter grains, pulses (mature beans and definition includes fruits as a subset of peas) and nuts. vegetables. Definition of fruit and vegetables applicable in epidemiological studies, Fruit and vegetables Edible plant foods excluding -
Citrus from Seed?
Which citrus fruits will come true to type Orogrande, Tomatera, Fina, Nour, Hernandina, Clementard.) from seed? Ellendale Tom McClendon writes in Hardy Citrus Encore for the South East: Fortune Fremont (50% monoembryonic) “Most common citrus such as oranges, Temple grapefruit, lemons and most mandarins Ugli Umatilla are polyembryonic and will come true to Wilking type. Because most citrus have this trait, Highly polyembryonic citrus types : will mostly hybridization can be very difficult to produce nucellar polyembryonic seeds that will grow true to type. achieve…. This unique characteristic Citrus × aurantiifolia Mexican lime (Key lime, West allows amateurs to grow citrus from seed, Indian lime) something you can’t do with, say, Citrus × insitorum (×Citroncirus webberii) Citranges, such as Rusk, Troyer etc. apples.” [12*] Citrus × jambhiri ‘Rough lemon’, ‘Rangpur’ lime, ‘Otaheite’ lime Monoembryonic (don’t come true) Citrus × limettioides Palestine lime (Indian sweet lime) Citrus × microcarpa ‘Calamondin’ Meyer Lemon Citrus × paradisi Grapefruit (Marsh, Star Ruby, Nagami Kumquat Redblush, Chironja, Smooth Flat Seville) Marumi Kumquat Citrus × sinensis Sweet oranges (Blonde, navel and Pummelos blood oranges) Temple Tangor Citrus amblycarpa 'Nasnaran' mandarin Clementine Mandarin Citrus depressa ‘Shekwasha’ mandarin Citrus karna ‘Karna’, ‘Khatta’ Poncirus Trifoliata Citrus kinokuni ‘Kishu mandarin’ Citrus lycopersicaeformis ‘Kokni’ or ‘Monkey mandarin’ Polyembryonic (come true) Citrus macrophylla ‘Alemow’ Most Oranges Citrus reshni ‘Cleopatra’ mandarin Changshou Kumquat Citrus sunki (Citrus reticulata var. austera) Sour mandarin Meiwa Kumquat (mostly polyembryonic) Citrus trifoliata (Poncirus trifoliata) Trifoliate orange Most Satsumas and Tangerines The following mandarin varieties are polyembryonic: Most Lemons Dancy Most Limes Emperor Grapefruits Empress Tangelos Fairchild Kinnow Highly monoembryonic citrus types: Mediterranean (Avana, Tardivo di Ciaculli) Will produce zygotic monoembryonic seeds that will not Naartje come true to type. -
Seasonal Changes in Florida Murcott Honey Oranges
28 2 5 2 5 ::: 1//// . 11111 . l:.i 11/1/2.8 1.0 1.0 I~ 1= 11111 . ~ ~P.2 I~ ~F2 I.:.l I" 2.2 ~ I~ .z I~ ~ ~ :f B~ ~ I~ .. " 1.1 al......... 1.1 ""&:.1'- ...." I - ""'1.25 111111.4 111111.6 1111,1.25 111111.4 11111.1.6 MICROCOPY RESOLUTION TEST CHART MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS·1963·A NATIONAL BUREAU OF STANDARDS.1963·A F~~ ~o 'LA £'~-\ i:t I A..7( ~. Seasonal Changes in ~ ~ Florida Murcott Honey Oranges ",. ... ~ oe I.< ..0 ~~... :.:J ~ N U CD .... 0 (J") -...a f-o :::1 ll.l Cl.. - C\.l :n ~ V I- 43 ~ u bo Q t: 0 < cQ 0 ......, Technical Bulletin No. 1271 ~ United States Department of Agriculture PREFACE This report is one of a group on seasonal changes in citrus fruItll. It is part of a broad program of research by the Agricultural Marketing Service to evaluate and maintain the quality of agricultural products in marketing channels. The late Arthur P. Sidwell was responsible for the organization and re,ision of the manuscript, in its final form, for publication. The light transmission studies were conducted under the direction of John~. Yeatman. William G. Long is now m;sociate chemist, Citrus Experiment Station, Lake Alfred, Fla.; i\lilliard B. Sunday and Paul L. Ha;-ding are statioued at Orlando, Fla. Harry J. Brinkl('y, James B. Smith, 0j'l"in H. ·Wllrc!, and Henry C. \Yhitesell gaye information and assisted in locating test plots of ::Uurcott Honey oranges fOr use in this study. -
Geographical Indications in Vietnam
PUBLISHING RESPONSIBILITY Dinh Huu Phi (Dr.) General Director of the Natonal Ofce of Intellectual Property, Preface Ministry of Science and Technology A geographical indicaton (GI) is a sign which identfes a product whose reputaton and specifc quality atributes consttuted by the unique combinaton of local natural resources and cultural ones in a given territory, region or country. GI has been increasingly adopted as an efectve EDITED BY: strategy to raise awareness of the consumers about the origin and quality of products, as well as to Dao Duc Huan (Dr.) promote image of origin-based products and valorize the heritage values consttuted by natural and Trinh Van Tuan (Dr.) cultural resources aiming at raising compettveness of traditonal products. There are around 10,000 Luu Duc Thanh products protected under GI worldwide, with an estmated annual trading turnover of US$ 50 billion. Nguyen Ba Hoi Thanks to favorable natural endowments, diversifed traditons and cultures, experiences, diligence and skills of the people, Vietnam possesses a diverse range of typical agricultural and handicraf products of quality and reputaton anchored on territory and associated with local cultural identtes. PREPARED BY: Many origin-based products are widely known in the domestc and internatonal markets. Nguyen Mai Huong (Dr.) Nguyen Huong Trang Vietnam has built a fundamental legislatve framework to facilitate the registraton for Pham Thi Hanh Tho (Dr.) Nguyen Thi Phuong Thao protected geographical indicatons (PGI) aiming at promotng origin-based products in parallel Estelle Bienabe (Dr.) Nguyen Ha Thanh with enhancing their values and compettveness in the market. That 60 agricultural and handicraf Bui Quang Duan Le Minh Thu products originated from 39 provinces and cites beneft from PGI by June 2018 underlines an Dang Phuc Giang Bui Tuan Anh increasingly signifcant role of GI in producing and trading local specialtes. -
Holdings of the University of California Citrus Variety Collection 41
Holdings of the University of California Citrus Variety Collection Category Other identifiers CRC VI PI numbera Accession name or descriptionb numberc numberd Sourcee Datef 1. Citron and hybrid 0138-A Indian citron (ops) 539413 India 1912 0138-B Indian citron (ops) 539414 India 1912 0294 Ponderosa “lemon” (probable Citron ´ lemon hybrid) 409 539491 Fawcett’s #127, Florida collection 1914 0648 Orange-citron-hybrid 539238 Mr. Flippen, between Fullerton and Placentia CA 1915 0661 Indian sour citron (ops) (Zamburi) 31981 USDA, Chico Garden 1915 1795 Corsican citron 539415 W.T. Swingle, USDA 1924 2456 Citron or citron hybrid 539416 From CPB 1930 (Came in as Djerok which is Dutch word for “citrus” 2847 Yemen citron 105957 Bureau of Plant Introduction 3055 Bengal citron (ops) (citron hybrid?) 539417 Ed Pollock, NSW, Australia 1954 3174 Unnamed citron 230626 H. Chapot, Rabat, Morocco 1955 3190 Dabbe (ops) 539418 H. Chapot, Rabat, Morocco 1959 3241 Citrus megaloxycarpa (ops) (Bor-tenga) (hybrid) 539446 Fruit Research Station, Burnihat Assam, India 1957 3487 Kulu “lemon” (ops) 539207 A.G. Norman, Botanical Garden, Ann Arbor MI 1963 3518 Citron of Commerce (ops) 539419 John Carpenter, USDCS, Indio CA 1966 3519 Citron of Commerce (ops) 539420 John Carpenter, USDCS, Indio CA 1966 3520 Corsican citron (ops) 539421 John Carpenter, USDCS, Indio CA 1966 3521 Corsican citron (ops) 539422 John Carpenter, USDCS, Indio CA 1966 3522 Diamante citron (ops) 539423 John Carpenter, USDCS, Indio CA 1966 3523 Diamante citron (ops) 539424 John Carpenter, USDCS, Indio -
Citrus Catalogue
CITRUS CATALOGUE CITRUS The common Mandarins (Citrus reticulata) are of In general appearance and other respects, the citrus greatest importance. Other Mandarin - like fruits include fruits of principal commercial importance fall into four, the Tangors and many of the Tangelos. reasonably well-defined, cultural groups; the Oranges, the Mandarins, the Pummelos and Grapefruits, and the common acid members. The common acid group includes three sub-groups; the Citrons, the Lemons and the Limes. In addition to the fruit groups mentioned above, all of which belong to the genus Citrus, there are the Kumquats, which belong to the closely related genus Fortunella, and the so-called but much more distantly related Trifoliate Orange, Poncirus trifoliata. The Kumquats comprise a group of considerable importance for their fruits. The Trifoliate Orange, together with its hybrids is of significance as a rootstock. THE ORANGES THE PUMMELOS AND GRAPEFRUIT The principal; members of the Orange group are the Sweet Orange and the Bitter Orange. While similar in many respects and overlapping in Four kinds of Sweet Orange (Citrus sinensis) are certain characters, horticulturally the Pummelos (Citrus recognised: grandis) and Grapefruits (Citrus paradisi) comprise separate classes, each of which consist of both 1. The Common Sweet Orange pigmented and non-pigmented varieties. Additionally, 2. The Sugar or Acidless Orange the Pummelos contain both common acid and acidless 3. The Pigmented or Blood Orange or sweet varieties. 4. The Navel Orange Fruits that more resemble the Grapefruit or Pummelo than any other include a number of the Tangelos, Smooth Seville and Wheeny Grapefruit. THE MANDARINS Sunraysia Nurseries Pty Ltd, PO Box 45 Gol Gol NSW 2738 Phone 03 50248502 Fax 0350248551 E-mail [email protected] www.sunraysianurseries.com.au THE COMMON ACID GROUP KUMQUATS Three Groups of common acid citrus are recognised. -
Thành Phần Hóa Học Tinh Dầu Lá Cam Chanh
TẠP CHÍ SINH H ỌC, 2013, 35(1): 61-66 THÀNH PH ẦN HÓA H ỌC TINH D ẦU LÁ CAM CHANH - Citrus sinensis (L.) Osbeck TR ỒNG Ở NGH Ệ AN Phan Xuân Thi ệu*, Hoàng V ĩnh Phú, Nguy ễn Anh D ũng Tr ường đại h ọc Vinh, *[email protected] TÓM T ẮT: Bằng ph ươ ng pháp c ất lôi cu ốn h ơi n ước đã xác định được hàm l ượng tinh d ầu trong lá c ủa 3 gi ống cam Chanh ( Citrus sinensis) : cam Chanh, cam Vân Du và cam Ch ịu nhi ệt so v ới nguyên li ệu t ươ i của t ươ ng ứng là 0,45%, 0,25% và 0,30%. Thành ph ần hóa h ọc c ủa tinh d ầu được xác định b ằng ph ươ ng pháp s ắc ký khí ghép kh ối ph ổ cho th ấy, có 48 hợp ch ất đã được phát hi ện, trong đó, ch ủ y ếu là các monoterpene. Thành ph ần chính c ủa tinh d ầu gồm sabinene (24,85-34,45%), linalool (9,95-12,25%), limonene (7,13-9,80%), (Z)-β-ocimene (6,80-8,87%), 3-carene (3,08-4,07%), E-citral (geraniol) (6,99- 10,66%), Z-citral (neral) (1,65-2,63%), β-caryophyllene (2,52-3,40%), spathoulenol (allo) (3,08-5,11%) và β-sinensal (4,20-6,75%). Từ khóa : Citrus sinensis , monoterpene, linalool, limonene, sabinene, tinh du. MỞ ĐẦ U Ngh An.