播期温度对新疆膜下滴灌棉花出苗率及苗期生长的影响

随龙龙,田景山,姚贺盛,张鹏鹏,梁福斌,王进,张旺锋

Effects of Different Sowing Dates on Emergence Rates and Seedling Growth of Cotton Under Mulched Drip Irrigation in Xinjiang

LongLong SUI,JingShan TIAN,HeSheng YAO,PengPeng ZHANG,FuBin LIANG,Jin WANG,WangFeng ZHANG

表4 棉花播种至出苗期间温度指标与出苗率的相关及通径系数

Table 4 Correlation and path coefficient between temperatures and emergence rate from sowing to emergence date

因素 Factor 相关系数 Correlation coefficient 直接通径系数 Directly path coefficient 间接通径系数Indirectly path coefficient x1→y x2→y x3→y x4→y x1 0.9800** 0.4699 0.7090 -0.0109 -0.2180 x2 0.9500** 0.7853 0.4243 -0.0007 -0.2297 x3 0.0100 -0.0411 0.1251 0.0133 -0.0647 x4 0.8900** -0.2459 0.4167 0.7335 -0.0108