四川冬小麦产量构成因子初步分析  

Preliminary Study on Yield Component Factors of Sichuan Winter Wheat

作　　者：郑建敏[1] 李浦[2] 廖晓虹[3] 杨梅[1] 饶世达[1] 蒲宗君[1] 

机构地区：[1]四川省农业科学院作物研究所,四川成都610066 [2]四川省农业科学院农产品加工研究所,四川成都610066 [3]云南农业大学农学与生物技术学院,云南昆明650201

出　　处：《作物杂志》2012年第1期105-108,共4页Crops

基　　金：国家自然科学基金(31071411);国家农转资金项目(2009GB2F000318)

摘　　要：小麦的产量构成因子包括有效穗、千粒重、穗粒数,三者的相对重要性是学者们探讨的热点问题。利用2008～2009年与2009～2010年的小麦区试结果,采用成组数据均值差异性分析法、相关分析法和灰色关联度分析法3种方法对产量构成要素进行初步分析。结果表明,有效穗与实际产量呈极显著正相关,是影响实际产量的最重要因素,其微小的变化可引起实际产量的显著提高。但从高产育种角度看,应在优先考虑有效穗增加的基础上,兼顾千粒重和穗粒数的提高。The yield component factors of wheat mainly include effective panicle, lO00-grain weight, grain number per spike. Investigation of the relative importance of the three factors is a hot issue. Using the group data analysis method, the correlation analysis method and the gray correlation analysis method, we analyzed two years＇ data of Si- chuan wheat regional trail in order to find out the relative importance relationship among the three mentioned yield component factors. The results showed that effective panicle had a very significant positive correlation with actual production;minute change of effective panicle could lead to a huge change of actual yield, meaning that effective panicle was more important above the other two factors. But in order to reaching at maximum of the yield, breeders should preferentially consider the effective panicle, meanwhile take account to both 1000-grain weight and grain number per spike.

关 键 词：小麦 有效穗 千粒重 穗粒数 产量 

分 类 号：S512.11[农业科学—作物学]