稻曲病发病程度与产量的相关性  

Relativity between Occurrence Extent of False Smut of Rice and Its Yield

作　　者：王梅[1] 周永力[2] 赵震宇[1] 郭庆元[1] 谢学文[2] 

机构地区：[1]新疆农业大学农学院,乌鲁木齐80052 [2]中国农业科学院作物科学研究所农作物基因资源与基因改良国家重大科学工程,北京100081

出　　处：《新疆农业大学学报》2007年第4期76-79,共4页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金项目(30471021)

摘　　要：由方差分析知田块对水稻的稻曲病发生程度有很大的影响。用SAS统计软件分析田间数据结果表明稻曲病影响水稻产量的主因素是病穗率,其次是病粒率,病穴率是次要因素。根据田块中的厚垣孢子含量推断,影响水稻稻曲病发病程度的主因素可能是上年的厚垣孢子在田间的越冬量。ANOVA results indicated that the differences among fields was highly significant. SAS results indicated false smut of rice analysis mainly influenced the yield of rice by percentage of diseased ears rate, next is the percentage of diseased spikes rate. Percentage of diseased hill holerate is the secondary factor. The occurrence extent of false smut of rice mainly depended on the quantity of chlamydospore that overwintered last year.

关 键 词：稻曲病 产量 方差分析 主成分分析 病穗率 

分 类 号：S435.111.49[农业科学—农业昆虫与害虫防治]