Grain-filling problem in ‘super’ rice
WebDuring rice grain filling process, ABA content in developing grains fluctuates continuously, which is regulated by multi-stage processes involving ABA synthesis, catabolism and transport, and also affected by environmental conditions exposed. ... Grain-filling problem in ‘super’ rice. J Exp Bot, 61 (1): 1-5. [Cited Within:1] [19] You C C ...
Grain-filling problem in ‘super’ rice
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WebNov 2, 2005 · These results indicate that increased grain filling rate is mainly attributable to enhanced sink activity through regulation of key enzymes involved in sucrose-to-starch … WebAbstract. Modern rice (Oryza sativa L.) cultivars, especially the newly bred 'super' rice, have numerous spikelets on a panicle with a large yield capacity. However, these …
WebJan 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 … WebApr 5, 2024 · Abstract. Grain-filling, as the final growth stage of rice, is sensitive to environmental temperature change. Previous studies mainly concerned about the effects …
Starch 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 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 …
WebMay 22, 2024 · Indeed, the application of exogenous IAA significantly improved grain filling under excessive nitrogen conditions (Figs. 6 and 8), while defects in OsYUC11, a key gene for IAA biosynthesis in...
WebApr 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. cycloplegic mechanism of actionWebMay 22, 2024 · Grain-filling problem in ‘super’ rice. Crossref GoogleScholar Google Scholar 19959608 PubMed You CC, Zhu HL, Xu BB, Huang W, Wang S, Ding Y, Liu Z, Li G, Chen L, Ding CQ, Tang S (2016 ) Effect of removing superior spikelets on grain filling of inferior spikelets in rice. cyclophyllidean tapewormsWebMar 26, 2024 · Yang and Zhang (2009) argued that because of poor grain filling of later-flowering inferior spikelets (compared with the earlier-flowering superior spikelets), super hybrid rice fails to achieve its high … cycloplegic refraction slideshareWebMay 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 cyclophyllum coprosmoidesWebRecent 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 … cyclopiteWebApr 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, … cyclop junctionsWebMay 30, 2024 · Rice quality is directly determined by grain filling of rice spikelets, which is largely regulated by changing environments, like temperature, light and water. Adverse reproductive stage environments remarkably decrease rice quality by affecting starch biosynthesis process. cycloplegic mydriatics