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通过3年试验,研究分析了大穗型水稻在杂优栽培方法下的产量差异;产量与干物质生产、茎鞘物质运转率的相关性;结实率依每亩颖花数、抽穗期单位叶面积负担颖花数、每颖花灌浆物质量而变化的复回归分析;光合速率的差异及其与产量的相关性;产量与群体净同化率的相关性;叶面积与净同化率在抽穗前与抽穗后对干物质生产的贡献;以及影响茎鞘物质运转率的若干因素。
After three years of experiment, the yield and dry matter production, stem and sheath material turnover rate were analyzed. The results showed that the seed setting rate was in accordance with the number of spikelet per acre, The area burden of spike number per spike flower grouting mass complex regression analysis; photosynthetic rate differences and their correlation with yield; yield and population net assimilation rate of correlation; leaf area and net assimilation rate before heading And contribution to dry matter production after heading; and several factors that affect the rate of stem-sheath material turnover.