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- W2365680822 abstract "When grain yield of rice was above 12 t/hm 2, the amount of spikelets should be above 50 000/m 2, grain-filling percentage above 80%, and 103-grain weight was between 26~28 g. The super high-yielding population had following characteristics: total number of stems and tillers at the critical leaf-age of productive tillers were nearly equal to the expected panicle number, and the percentage of productive tillers above 80%; leaves in the canopy were erect,the total leaf area index at heading was 7.8~8.8, the percentage of effective leaf area was above 95%, and the percentage of high effective leaf area was between 75%~80%; grain-leaf ratio [spikelets/leaf (cm 2)] was above 0.6; the photosynthetic potential during the whole growth period was above 550 m 2·d/m 2 and from heading to maturity above 230 m 2·d/m 2; the total dry matter weight at maturity was 23~28 t/hm 2, of which 35%~40% was accumulated during the grain filling period, and harvest index was above 0.51; the root-shoot ratio was 0.25~0.29 and root exudates per stem was 210~245 mg/h at heading. The cultivation techniques for the super high-yielding population were discussed in the paper. They were the nursing strong dry-raised seedlings by controlling soil moisture at different leaf-age, site-specific and real-time fertilizer management, dry-wet alternate irrigation during the whole growth period according to low-limit of soil water potentials, and applying chemical regulators." @default.
- W2365680822 created "2016-06-24" @default.
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- W2365680822 date "2004-01-01" @default.
- W2365680822 modified "2023-09-25" @default.
- W2365680822 title "Characteristics of Super High-yielding Population of Rice and Cultivation Techniques" @default.
- W2365680822 hasPublicationYear "2004" @default.
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