The pattern and control of reproductive development in lychee: A review
TL;DR: Potential techniques for improving the setting and retention of fruit include varietal selection, withholding of nitrogen fertilization during flowering and early fruit growth (to reduce vegetative flushing), and the maintenance of plant moisture status (irrigation, overhead misting and windbreaks).
About: This article is published in Scientia Horticulturae.The article was published on 1984-03-01. It has received 62 citations till now. The article focuses on the topics: Fruit abscission & Abscission.
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TL;DR: Observations revealed that bumblebees contribute to lychee pollination not only because they are active in conditions that HB are not, but also because HB collect mainly nectar from the Lychee flowers and barely contact the reproductive organs, while BB collect mainly pollen and hence pollination increases.
4 citations
Dissertation•
01 Jan 2008
TL;DR: Investigation included identification of the timing of abortion relative to stage of capsule development, the impact of irrigation management and other treatments imposed to alter resource allocation, the influence of the maternal and paternal genotype, and relationship between floral characteristics and propensity of capsules to abort.
Abstract: Low capsule seed set is a major factor limiting seed production in Eucalyptus globulus seed orchards. Trials were conducted in two Tasmanian E. globulus seed orchards to identify mechanisms involved in capsule abortion and low reproductive success. Key areas of investigation included identification of the timing of abortion relative to stage of capsule development, the impact of irrigation management and other treatments imposed to alter resource allocation, the influence of the maternal and paternal genotype, and relationship between floral characteristics and propensity of capsules to abort.
4 citations
Cites background from "The pattern and control of reproduc..."
...reproductive growth (Menzel 1984; Pigearie et al. 1992)....
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21 Jul 2021
TL;DR: In this paper, the authors presented the food and drink process in the case of making lychee juice and Lychee-tea combination fruit juice in a tropical country such as Vietnam, mainly using methods of qualitative analysis, synthesis and inductive methods, with description and explanatory methods.
Abstract: The purpose of this study focuses on presenting the food and drink process in the case of making lychee juice and lychee-tea combination fruit juice in a tropical country such as Vietnam. We mainly use methods of qualitative analysis, synthesis and inductive methods, with description and explanatory methods. Authors also use a value chain approach from a material supply (lychee products) to production and market distribution.Research results show us that choosing good red lychee together with good green or black tea, esp. Lipton tea, which is produced from the region of material supplying in the Northern region of Vietnam, then mixed with sugar and ice, using little vegetables will be very good for everybody health, functioning as medical treatment to prevent heart disease, and helps men and women stronger.In the meantime, we also propose lychee and tea planting policies and capital financing policies in the country, esp. In the north of Vietnam. For instance, the nation needs to continue to negotiate with countries that have not yet allowed Vietnam’s fresh lychee to be imported into developed countries (such as Korea, ...); The state/province cooperates with donors and businesses in trade promotion activities in potential export markets for Vietnamese lychee and fruit products (Japan, Korea, US, EU, ASEAN…).
4 citations
Cites background from "The pattern and control of reproduc..."
...First, Menzel (1984) stated that they found no relation between production of flower in lychee and the yield....
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01 Jan 2012
TL;DR: In this paper, the authors evaluate the respuesta of litchi (Litchi chinensis Sonn.) a the fertiliza-cion with NPK in arboles de the var. ‘Brewster' of Oaxaca, in the period of 2009 - 2011.
Abstract: RESUMEN Se evaluo la respuesta de litchi ( Litchi chinensis Sonn.) a la fertiliza-cion con NPK en arboles de la var. ‘Brewster’ de seis anos plantados al norte de Oaxaca, en el periodo 2009 - 2011. Se usaron seis proporciones (0, 25, 50, 75, 100 y 125 %) de la dosis 50-130-50 kg ha -1 de N, P 2 O 5 y K 2 O como tratamientos; adicionalmente se probaron otros tres tratamien-tos: dosis 100 % + 3.6 t ha -1 de composta, dosis 100 % + 18 kg ha de elementos menores, y dosis 100 % + 18 kg ha -1 de elementos menores + 720 kg ha -1 de Ca (OH) 2 . La primera fertilizacion se aplico en noviem-bre de 2009 pero no se encontro respuesta a la fertilizacion en 2010. En 2010 y 2011 la fertilizacion se dividio en dos partes. La primera mitad se aplico el 30 de agosto de 2010, y la otra mitad el 11 de febrero de 2011. Los resultados que aqui se reportan son del periodo 2010 - 2011. Las concentraciones foliares mayores de N, P y K se obtuvieron al ini-cio de la yema floral con las dosis mas altas de fertilizacion. La mayor floracion y el mayor rendimiento de fruta se lograron con la dosis 100 % de N-P-K + elementos menores que supero (P ≤ 0.05) al testigo. El mayor contenido de clorofila foliar se obtuvo con el tratamiento 125 %, en comparacion con el testigo. Los mayores valores de peso de materia seca de brotes vegetativos y de area foliar se lograron con el tratamiento 100 % + composta. El contenido de N foliar correlaciono con el rendi-miento de brotes y con area foliar (r = 0.72 y r = 0.65, respectivamente). Se concluye que los arboles de litchi fertilizados con NPK, composta y elementos menores, aumentaron su concentracion foliar de N, P y K, cantidad de flores, rendimiento de fruta, color verde de las hojas, bio-masa de nuevos brotes y area foliar. No se encontro respuesta del litchi a la aplicacion de hidroxido de calcio. Palabras clave:
4 citations
01 Jan 2017
TL;DR: The main constraint in the litchi industry is the short production season lead to the imbalance between supply and demand in market, due to “Hak Ip” planting too much.
Abstract: Litchi (Litchi chinensis Sonn.) was introduced from Fujian Province of China into Taiwan by immigrants nearly 300 years ago. It is an economically important horticultural crop. Now, the total harvested area under litchi cultivation is 11000 ha, roughly, and the main variety “Hak Ip” accounts for over 70% of all area. The main constraint in the litchi industry is the short production season lead to the imbalance between supply and demand in market, due to “Hak Ip” planting too much. The seven novel varieties released from Taiwan Agricultural research institute have different fruit maturity seasons and good fruit quality. Based on the policy of the “right cultivar for the right land,” cultivating them in proper ecological regions will effectively diversify/extend the production period and match market requirements. As for plant management, by means of studying the biology of flower and fruit development, researcher and grower have developed several special cultural technologies to apply for the commercial production of litchi. The current status of breeding, biology of flower and fruit development, and cultural research in Taiwan are discussed in this review.
4 citations
References
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TL;DR: The most suitable temperature regime for floral behaviour, pollen tube growth and embryo development was 25 20, and the ovules at 17 12 had an embryosac penetrated by a pollen tube.
81 citations
TL;DR: An alternative approach involves a critical study of manipulative techniques which restrict vegetative flushing and promote vegetative dormancy under non-inductive conditions, i.e. cincturing, applying growth retardants and withholding irrigation and fertilizers.
78 citations
TL;DR: The rate of pollen tube growth increased with a rise in temperature, but abnormal growth was frequently observed at 33/28 and tubes failed to reach the ovary at 17/12, and endosperm and embryo development was observed to occur at 25/20 but not at33/28 or 17/ 12 although a positive effect of...
Abstract: SummaryAvocado plants were kept in growth cabinets at 33°C day, 28°C night (33/28); 25°C day, 20°C night (25/20); and 17°C day, 12°C night (17/12), with a 12-h photoperiod and light intensity of 26000 1x. At 33/28 and 25/20 flowers opened in the afternoon as females and again the following morning as males (type B floral cycle) with some overlap of male and female stages at 25/20. At 17/12 very few flowers had a female stage, the majority opening once only as males. The duration of the flowering period decreased with a rise in temperature as did total number of flowers opening. Reproductive growth was inhibited in favour of vegetative growth at 33/28, as exhibited by smaller floral parts and abscission of buds and flowers. The rate of pollen tube growth increased with a rise in temperature, but abnormal growth was frequently observed at 33/28 and tubes failed to reach the ovary at 17/12. Endosperm and embryo development was observed to occur at 25/20 but not at 33/28 or 17/12 although a positive effect of...
70 citations
TL;DR: The growth curves of pericarp, seed and aril, and the fruit as a whole were typically sigmoidal and the developing embryo seemed to inhibit aril growth at a certain stage of development.
41 citations