早稻结实率与气象因子的相关性分析

目的]科学地利用气候资源,以保证早稻高产稳产。方法]应用1993～2008年柳州沙塘早稻生育状况观测资料及同期气象观测数据,利用统计分析对早稻开花期、乳熟前期和乳熟后期的平均日最高气温、平均日降水量和平均日照时数与水稻空壳率、秕谷率进行相关性分析,分析早稻各生育期气象要素对早稻结实率的影响。结果]早稻空壳率随着开花期平均日照时数的增加而减少;秕谷率随着乳熟前期平均日降水量的增加而增加,随着乳熟后期平均日降水量的增加而增加,随着平均日照时数的增加而减少。结论]早稻结实率与气象因子相关。根据其变化适当地进行人工调节,可降低早稻空壳率,提高产量。

Correlation Analysis of Early-season Rice Seed Setting Rate and Meteorology Factor

Objective] The high and stable yield of ear-season rice could be realized through the scientific use of climate resource.Method] The correlation among average maximum daily temperature,average daily precipitation and average daily sunshine hour in the flowering period,the former and late of milky stage of early-season rice,and the rate of empty grain,the rate of bad seed was statistically analyzed with the data from 1993-2008 in Shatang of Liuzhou City.The impact of the meteorological factor in the differ...