播期对白燕7号在黑龙江省中西部地区产量的影响

王永刚,姬铭泽,赵旭涵,于立河,薛盈文

Effects of Sowing Dates on Yield of Baiyan 7 in Midwest of Heilongjiang Province

Yonggang Wang,Mingze Ji,Xuhan Zhao,Lihe Yu,Yingwen Xue

表5 气候因子和子粒产量的相关系数

Table 5 Correlation coefficient between meteorological factor and grain yield

项目 Item ≥0℃积温(X1) Accumulated temperature 降雨量(X2) Rainfall 日照时数(X3) Sunshine duration 子粒产量(Y) Grain yield ≥0℃积温(X1) Accumulated temperature (≥0℃) 1 0.66 -0.18 -0.24 降雨量(X2) Rainfall 1 -0.83* -0.87* 日照时数(X3) Sunshine duration -1 -0.98** 子粒产量(Y) Grain yield -1