Grain-filling problem in super rice

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August undefined, 2024

WebConventional thinking to explain the poor grain-filling is the consequence of carbon limitation. Recent studies, however, have shown that carbohydrate supply should not be … WebApr 5, 2024 · Grain-filling, as the final growth stage of rice, is sensitive to environmental temperature change. Previous studies mainly concerned about the effects of high …

High nitrogen input causes poor grain filling of spikelets at the ...

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. WebMay 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. mercedes s550 rims for sale

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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; … 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 … WebConventional thinking to explain the poor grain-filling is the consequence of carbon limitation. Recent studies, however, have shown that carbohydrate supply should not be … mercedes s550 sunroof not working any fix

The Initiation of Inferior Grain Filling is Affected by …

Synergistic interaction between ABA and IAA due to moderate soil …

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 … WebAug 1, 2024 · The grain filling of inferior spikelets is much less complete than that of superior spikelets in rice cultivars with large panicles and numerous spikelets and is promoted by moderate soil drying (MD) post-anthesis. A growing body of evidence has shown that microRNAs function in regulating grain development. mercedes s550 wheels for saleWebOct 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 … how old do praying mantis get

"WebAbstract 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 been proven to be a practical strategy to promote grain filling. However, the molecular mechanisms underlying this phenomenon remain largely unexplored. " - Grain-filling problem in super rice

Grain-filling problem in super rice

Polyamines and ethylene in rice young panicles in response to soil ...

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 yield potential. In our study, mean seed-set percentage in 2016 was 13.0% lower than that in 2015 at higher N levels but only 9.6% lower at ... WebDec 18, 2024 · SUMMARY. Poor grain filling of inferior spikelets is becoming a severe problem in some super rice varieties with large panicles. Moderate soil drying (MD) …

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WebDec 1, 2024 · At the individual panicle level, reduction in grain filling was evidenced by decreased fully filled spikelet percentage, fertilized spikelet weight, and grain plumpness, and increased partially filled spikelet percentage in the bottom part of the panicle as total N rates increased. 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 … 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 (Kobata et al., 1992; Schnyder, 1993; … 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 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 … See more

WebAug 26, 2024 · We also compared these features of this line with an earlier super rice cultivar, LYP9 (Zou 2003) and Yongyou12# ... Growth analysis in the process of grain filling in rice. Acta Agron Sin 14:182–193. Google Scholar Zou J (2003) Breeding of two-line hybrid rice variety'Liangyoupeijiu'and preliminary studies on its cultivation characters. Sci ... WebDec 18, 2024 · SUMMARY. Poor grain filling of inferior spikelets is becoming a severe problem in some super rice varieties with large panicles. Moderate soil drying (MD) …

WebOct 6, 2024 · The fi rst strategy is the improvement of the poor grain fi lling in the increased inferior spikelets. This may be realized by utilizing suggested alleles for good grain fi lling at APS2, APL2... WebApr 26, 2024 · Intriguingly, we have found that the sum of grain filling rates around 15 and 38 days after flowering largely determines grain yield, and have further developed a novel in situ approach quantifying grain filling rates and grain yield precisely with the measurements of ear respiratory rates (r>0.93).

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 ...

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 … mercedes s550 wheel lock key locationWebJul 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 … mercedes s 550 steering rack wiring harnessWebMay 1, 2024 · Super rice breeding in Japan aimed to increase the yield potential of rice by 50%, while NPT breeding at IRRI aimed to develop varieties with a yield potential of 15 t haâˆ’1 (Khush 1995). By contrast, the objectives of Chinaâ€™s Super Rice Breeding Program were the following (Cheng et al. 1998): (1) Develop super rice varieties with a ... mercedes s550 silverWebApr 12, 2024 · Find support for a specific problem in the support section of our website. Get Support ... better grain filling, and usually heavier grains than with conventional rice ... Yang, J.; Zhang, J. Morphological and physiological traits of roots and their relationships with shoot growth in ‘super’ rice. Field Crops Res. 2009, 113, 31–40 ... mercedes s550 sedan 2008WebOct 15, 2024 · Grain filling is determined by a complex sink-source balance (Okamura et al. 2024 ). In modern large panicle rice, significant asynchronicity of superior spikelet and inferior spikelet filling can … how old do puffer fish live how old do potbelly pigs liveWebModern 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 … how old do pterodactyls live for