Grain-filling problem in ‘super’ rice
WebJun 1, 2012 · There are reports that an increased grain-filling rate was closely associated with an elevated ABA level in the roots and grains of rice and wheat when subjected to a moderate soil drying during grain filling (Yang et al. 2001, 2003, 2004a, b; … WebOct 6, 2024 · Poor grain filling, characterized by incidence of partially filled grain, is one of the major problems to be improved for maximizing the yield potential in rice (Oryza sativa L.) cultivars with ...
Grain-filling problem in ‘super’ rice
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WebJun 28, 2010 · Cytokinins may reflect soil water status and regulate rice ( Oryza sativa L.) grain filling. This study investigated the changes in cytokinin levels in rice plants and … WebApr 21, 2024 · However, the high yield potential of ‘super’ rice cultivars, which have numerous spikelets with a large capacity, frequently fails to manifest in high grain yield due to either sterility or slow or poor filling of inferior spikelets.
WebPoor grain filling of inferior spikelets is becoming a severe problem in some super rice varieties with large panicles. Moderate soil drying (MD) after pollination has been proven to be a practical strategy to promote grain filling. However, the molecular mechanisms underlying this phenomenon remain largely unexplored. WebMay 15, 2024 · Increase in rice production through breeding programme is near saturation. • Poor grain filling in heavy panicles is the bottleneck in increasing rice production. • Low activity of the grain filling enzymes is the major cause of loss in grain yield. • Genetic manipulation of the grain filling enzymes could increase rice production. Keywords
WebDec 1, 2024 · It is generally accepted that poor grain filling of rice plants under high nitrogen (N) input is due to increased competition for assimilates because high N rate usually results in large sink size with more spikelets per panicle.
WebDec 18, 2024 · Poor grain filling of inferior spikelets is becoming a severe problem in some super rice with large panicles. Moderate soil drying (MD) after pollination has been proven to be a practical strategy ...
WebHowever, super rice varieties frequently do not meet their expected yield potentials due to poor grain-filling ability, as evidenced by a low grain-filling rate and many unfilled … bird feeder animal jam worthWebApr 14, 2024 · China is one of the world’s largest producers of rice (Oryza sativa L.), with a planting area of 29.9212 million hectares and a total output of 213 million tons in 2024, … dal with cabbageStarch in rice grains contributes 80–90% of the final dry weight of an unpolished grain (Yoshida, 1972; Duan and Sun, 2005). Grain-filling is actually a process of starch accumulation and it has been reported that there are 33 major enzymes involved in the metabolism of carbohydrates in developing rice endosperm … See more Rice (Oryza sativa L.) is one of the most important food crops in the world. Providing 35–60% of the dietary calories, rice is consumed by more than 3 billion people (Fageria, 2007). In the last half-century, world rice … See more Poor grain-filling of the later-flowering inferior spikelets of modern rice cultivars with numerous spikelets per panicle, especially for ‘super’ rice, is a serious problem and frequently limits yield potential. … See more The slow grain-filling rate and low grain weight of inferior spikelets have often been attributed to a limitation in carbohydrate supply (Sikder and Gupta, 1976; Murty and Murty, 1982; Zhu … See more Grain-filling in cereals depends on carbon from two sources: current assimilates and assimilates redistributed from reserve pools in vegetative tissues either pre- or post-anthesis … See more dal with green lentilsWebJan 1, 2010 · Recent studies, however, have shown that carbohydrate supply should not be the major problem because they have adequate sucrose at their initial grain-filling … dal with collard greensWebRecent studies, however, have shown that carbohydrate supply should not be the major problem because they have adequate sucrose at their initial grain-filling stage. The low … dal women\u0027s basketball scheduleWebApr 12, 2024 · Jiangxi Research and Development Center of Super Rice, Nanchang 330200, China * ... and solve the main problems of heat tolerance in rice progressively. ... Mitsui, T. Golgi/plastid-type manganese superoxide dismutase involved in heat-stress tolerance during grain filling of rice. Plant Biotechnol. J. 2015, 13, 1251–1263. dal without onion and garlicWebDec 18, 2024 · Poor grain filling of inferior spikelets is becoming a severe problem in some super rice varieties with large panicles. Moderate soil drying (MD) after pollination has … dal with spinach curry