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Heterosis breeding in rice (Oryza sativa L.)
Theoretical and Applied Genetics, 1982Studies conducted at the International Rice Research Institute (IRRI) during 1980 and 1981 have shown up to 73% heterosis, 59% heterobeltiosis and 34% standard heterosis for yield in rice. The latter was estimated in comparison to commercial varieties: IR36 and IR42 (yield 4-5 t/ha in wet season trials and 7-8 t/ha in dry season trials).
S S, Virmani, R C, Aquino, G S, Khush
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Rice, Japonica (Oryza sativa L.)
2014The importance of rice, as a food crop, is reflected in the extensive global research being conducted in an effort to improve and better understand this particular agronomic plant. In regard to biotechnology, this has led to the development of numerous genetic transformation protocols.
Marcy, Main, Bronwyn, Frame, Kan, Wang
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Rice, Indica (Oryza sativa L.)
2014Indica varieties, which are generally recalcitrant to tissue culture and transformation, occupy 80 % of rice cultivation area in the world. Therefore, transformation method for indica rice must be improved greatly so that global rice production would take full advantage of cutting-edge biotechnology.
Yukoh, Hiei +2 more
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Monitoring homologous recombination in rice (Oryza sativa L.)
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 2010Here we describe a system to assay homologous recombination during the complete life cycle of rice (Oryza sativa L.). Rice plants were transformed with two copies of non-functional GUS reporter overlap fragments as recombination substrate. Recombination was observed in all plant organs examined, from the seed stage until the flowering stage of somatic ...
Zhuanying, Yang +6 more
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HETEROSIS IN RICE (Oryza sativa L.).
Madras Agricultural Journal, 1987A study was made to assess the extent of oxploitable heterosis in a 7 x 7 diallel. The results indicated that almost all combinations involving IR 8 as one of the parents pos- sessed high mean and significant heterosis for yield but none of thec ombinations excelled it, indicating non-existence of exploitable heterosis with the parents under study ...
KALAIMANI S, KADAMBAVANASUNDARAM M
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Black Rice (Oryza sativa L.) Breeding
2020Black rice (Oryza sativa L.) is popular with its distinct characteristics like black color grain and high anthocyanin and mineral content, including several health benefits, and mainly distributed in Asian countries like China and India. Black rice becomes more important because of its nutrient value.
Ujjawal Kumar Singh Kushwaha +3 more
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Transpiration efficiency of rice (Oryza sativa L.)
Field Crops Research, 2009Abstract Transpiration efficiency (TE), defined as the total dry matter produced per unit of water transpired, is an important crop characteristic, especially when water resources are becoming scarcer in many regions. But, in contrast to other major food crops, very little is known about the TE of rice (Oryza sativa L.) and its dynamics in relation ...
Haefele, S. +4 more
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Thai Aromatic Rice (Oryza sativa L.)
2010Thai Agricultural Research Journal, 28, 3, 326 ...
Chawewan Vutiyano +3 more
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Wide compatibility in rice (Oryza sativa L.)
Euphytica, 1992Wide compatible varieties (WCVs) show normal spikelet fertility in crosses with Indica and Japonica rice varieties. Crosses of Indica and Japonica varieties frequently show high spikelet sterility which prevents exploitation of heterosis for grain yield.
R. Vijaya Kumar, S. S. Virmani
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