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本文以３个品种不同时期抽穗试验研究了灌浆结实期日均温度对稻米品质的影响。结果表明：稻米的粒长、粒宽、长宽比、糊化温度（ＧＴ）等性状受灌浆结实期日均温度影响较小，而垩白粒率、垩白面积、直链淀粉含量（ＡＴ）、胶稠度（ＧＣ）、整精米率等则对日均温度的变化较为敏感，但受影响的程度因品种而异；灌浆结实期日均温＞２６℃的天数、＜２１℃的天数及平均日均温与品质性状关系密切；温度分布的不同时段对米质也有影响。
In this paper, three varieties of different periods of heading experiments to study the grain filling grain average daily temperature on the quality of rice. The results showed that the grain length, grain width, aspect ratio, gelatinization temperature (GT) and other traits of rice were less affected by the average daily temperature during grain filling stage, while the chalky grain rate, chalkiness area, amylose content , Gel consistency (GC) and milled rice rate were all more sensitive to the change of daily average temperature, but the affected degree varied with the varieties; the average daily temperature> 26 ℃, the days <21 ℃ and average day Average temperature and quality traits are closely related; temperature distribution of different periods of quality also have an impact.