Grain-filling problem in ‘super’ rice
WebFeb 4, 2024 · Nitrogen (N) fertilizer has a significant impact on the growth and development of rice, with N contributing more than 60% of the applied chemical fertilizers [ 1 ]. … 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 …
Grain-filling problem in ‘super’ rice
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WebJul 21, 2024 · The results showed that shading after heading significantly decreased the spikelet-filling rate and grain weight, as well as the dry weight of grains panicle –1, 30 d after shading; these traits were closely related to the grain yield of rice. Hence, the grain yield decreased by 13.72–22.54% and 6.86–14.35% at Hanyuan and Wenjiang ... 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
WebSep 10, 2015 · Rice grain filling is a highly complicated process, and the accumulation of starch and storage proteins is regulated starting at the mRNA level . The RNA-Seq technique provided a powerful tool on …
http://www.ricescience.org/article/2024/1672-6308-28-4-317.html 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 stage. …
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 …
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. fisher price peek a block activity cubeWebDuring 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 ... canal view hancock mi npiWebJul 21, 2024 · The results showed that shading after heading significantly decreased the spikelet-filling rate and grain weight, as well as the dry weight of grains panicle –1, 30 d … can alvimopan be openedWebRecent 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 … fisher price peek a blockWebDec 17, 2013 · These findings suggest that grain sterility or poor grain filling in rice is the result of poor translocation and partitioning of assimilates into grains (sink) rather than of limited biomass production or source limitation. ... J. Yang and J. Zhang, “Grain-filling problem in ‘super’ rice,” Journal of Experimental Botany, vol. 61, no. 1 ... can alvimopan capsules be openedWebMar 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 … fisher price peek a blocks incrediblockWebMay 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 fisher price peek a blocks