Grain-filling problem in ‘super’ rice
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 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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WebMar 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 … WebNov 1, 2016 · The process of grain filling was accompanied by leaf senescence under different N rates as illustrated in Fig. 2. Dry matter in leaf increased slightly at early grain filling stage, and then decreased slowly …
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. 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 …
WebDec 1, 2024 · IG suffered from more ethylene, excessive nitrogen source but less heat shock, resulting in the more protein in IG. Abstract Protein content in the inferior grains (IG) has a great impact on eating quality of indica-japonica rice hybrids. WebModern rice (Oryza sativa L.) cultivars, especially the newly bred 'super' rice, have numerous spikelets on a panicle with a large yield capacity. However, these cultivars …
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 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 ... chinese herbal stores los angelesWebApr 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 … grandmother\u0027s tale summaryWebMay 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. chinese herbal supplements near meWebOct 27, 2024 · To investigate the differential responses of super rice grain filling to low filling stage temperature (LT) and the regulative effect of nitrogen panicle fertilizer (NPF), physiological and molecular experiments were conducted with two super rice varieties (Nanjing 7th: N7 and Nanjing 9108th: N9108) on two different filling stage temperature … chinese herbal store onlineWebApr 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. grandmother\u0027s tale pdfWebJul 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 … grandmother\\u0027s uncleWebNov 11, 2024 · The allele of the rice accession Ludao ( GFR1Ludao) improved the grain-filling rate of rice by increasing Rubisco initial activity in the Calvin cycle. Moreover, the increased expression of a cell wall … grandmother\u0027s touch cleaning