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Position: Home > Articles > Relationship between Annual Rainfall Change and Grain-oil Crops Diseases in Eastern Qinghai Journal of Henan Agricultural Sciences 2012,41 (5) 103-105

青海东部年降雨量变化与粮油作物病害发生的相关性研究

作  者:
辛总秀
单  位:
青海大学农牧学院
关键词:
青海东部;降雨量;粮油作物;病害;相关性
摘  要:
基于1999-2007年青海东部农业区病害发生情况,分析年降雨量的变化与小麦、油菜病害发生的相关性。结果显示,随年降雨量的不同,小麦和油菜病害的发生率也有差别。小麦病害发生率与年降雨量间的相关系数为0.350,满足方程y=-0.015 194x+6.538 82;油菜病害发生率与年降雨量间的相关系数为0.784,满足方程y=0.002 020x-0.569 56。表明小麦、油菜病害发生与年降雨量之间分别存在低度和中度正相关关系,即年降雨量越多,小麦病害和油菜病害发生越严重。
译  名:
Relationship between Annual Rainfall Change and Grain-oil Crops Diseases in Eastern Qinghai
作  者:
XIN Zong-xiu(Agriculture and Animal Husbandry College,Qinghai University,Xining 810016,China)
关键词:
eastern Qinghai;rainfall;grain-oil crops;disease;relationship
摘  要:
Based on the disease situation of agricultural region in eastern Qinghai in 1999-2007,the relationships between annual rainfall change and wheat-rapeseed diseases were studied.The results indicated that the relationship between wheat disease incidence and the annual rainfallsatisfied the equation y=-0.015 194x+6.538 82,with r=0.350,while the relationship between rapeseed disease incidence and the annual rainfall satisfied the equation y=0.002 020x-0.569 56,with r=0.784.Therefore,there were low or moderate positive correlations between the annual rainfall and wheat or rapeseed diseases,the more the annual rainfall,the more serious the diseases of wheat and rapeseed.

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