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《Shandong Agricultural Sciences》 2011-03
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Correlation and Path Analysis of Winter Wheat Yield with Meteorological Factors in Southwest Shandong Province

LIU Shu-yun,LI Jing-ling,ZHANG Xiu-lan,ZHU Jian-hua(Research Center of Science and Technology Information Engineering Technology, Shandong Academy of Agricultural Sciences,Jinan 250100,China)  
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).
【Fund】: 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)
【CateGory Index】: S512.11
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