【摘要】 对多个不同类型水稻品种进行多试点、多播期和人工气候箱模拟试验结果表明，齐穗后２０ｄ内的日均温度是结实期温度对稻米胶稠度影响的主要时段。对稻米胶稠度与齐穗后２０ｄ温度关系的回归分析可知，稻米胶稠度随该时段温度的变化呈直线和抛物线型两种趋势，且这种趋势类型的形成与品种的熟性有关，并与品种对温度变化反应的灵敏度和最适温度范围有着密切关系更多还原

【Abstract】 The field experiment and the simulated experiment in the artificial climate chamber with different rice varieties in multiple experiment stations,different sowing date show that the mean daily temperature in 20 days after rice full heading is the key period of mean temperature effect on gel consistency of rice grain according to the statistics analysis of relationship between the grain gelconsistency and mean daily temperature in 20 days after full heading,the tendency of grain gel consistency assumes 2 types,linear and parabola,with the variation of the mean temperature,and the the formation of the tendency type has some relationship with the variety ripe characteristics,and close relations hip with sensitivity to temperature variation and the optimum temperature range.更多还原