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Slow grain filling of rice (Oryza sativa L.) is a problem due to the heavy use of nitrogen fertilizer or the high lodging resistance of some cultivars. This study investigated if controlled water deficit during grain filling could enhance sink strength by regulating key enzymes involved and lead to faster grain filling. Two rice cultivars with high lodging resistance and slow grain filling were grown...
Inferior spikelets usually exhibit a slower grain filling rate and lower grain weight than superior spikelets in a rice (Oryza sativa L.) panicle. This study investigated whether the variations in grain filling between the two kinds of spikelets were attributed to their sink strength and whether the sink strength was regulated by the hormonal levels in the grains. Using two field-grown rice genotypes,...
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