鲁西南冬小麦产量与气候因子的相关和通径分析  

Correlation and Path Analysis of Winter Wheat Yield with Meteorological Factors in Southwest Shandong Province

作　　者：刘淑云[1] 李景岭[1] 张秀兰[1] 朱建华[1] 

机构地区：[1]山东省农业科学院科技信息工程技术研究中心,山东济南250100

出　　处：《山东农业科学》2011年第3期15-19,共5页Shandong Agricultural Sciences

基　　金：国家科技支撑计划项目(2009BADA9B03);公益性行业(农业)科研专项(200803037);国家"863"计划资助项目(2006AA10A308-4)

摘　　要：对小麦生育期间的41类气象因子进行分析,结果表明:有16类因子与产量之间的相关性达到了显著或极显著水平,其中6月1～10日平均风速(X41)、次年3月上旬极端最低气温平均(X20)1、0月至次年5月平均气温(X26)与产量之间的相关系数分别达-0.77567、0.76501和0.72191;通径分析结果表明:15类因子对产量的影响明显,前3类依次是6月1～10日平均风速(X41)、次年4月月日照百分率(X33)和12月平均气温(X15)。Forty-one meteorological factors during wheat development were analyzed.The results indicated that 16 meteorological factors were closely related to winter wheat yield.The correlation coefficients of average wind speed from 1st to 10th in June（X41）,extreme low temperature in early March of next year（X20） and average temperature from October to May of next year with yield were-0.77567,0.76501 and 0.72191,respectively.The path analysis results indicated that there were 15 factors markedly affected winter wheat yield,and the first three in order were average wind speed from 1st to 10th in June（X41）,sunshine percentage in April of next year（X33） and average temperature in December（X15）.

关 键 词：冬小麦产量 气象因子 相关分析 通径分析 

分 类 号：S117[农业科学—农业基础科学]