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根据３点４年水稻６个品种多播期品质试验结果，运用直线相关和积分回归的方法，分析了灌浆结实期４时段气温与稻米品质的关系及作用效应系数ａｔｉ，发现水稻灌浆结实期前３时段（约齐穗后３０ｄ内）平均气温与稻米品质关系密切且效应系数较大。这将有助于我国优质稻米研究和气候生态区划时对时间指标的确定
According to the quality test results of 6 varieties of rice at 3, 4 and 4 years, the correlation between temperature and rice quality and the effect coefficient ati were analyzed by using the method of linear correlation and integral regression. The results showed that before filling, The average temperature in 3 periods (about 30 days after heading) is closely related to the quality of rice and the effect coefficient is relatively large. This will help to determine the time index of high-quality rice research and climate zoning in China