云南省玉米杂交种产量和产量构成因素的灰色关联度分析  

Grey correlative degree analysis of yield and yield component factors for maize hybrids of Yunnan province

作　　者：汪燕芬[1] 田俊明[1] 詹和明[1] 张培高[1] 陈洪梅[1] 黄云霄[1] 段智利[1] 吕宏斌[1] 严富民 番兴明[1] 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650205 [2]陆良县种子公司,云南陆良655600

出　　处：《西南农业学报》2008年第4期925-928,共4页Southwest China Journal of Agricultural Sciences

基　　金：云南省自然科学基金项目(2004C0011Z);云南省"十一五"科技攻关项目(2006NG06)

摘　　要：利用灰色关联度分析方法,对云南省中北部玉米杂交种区域试验参试组合的产量和产量构成因素进行分析。结果表明:玉米杂交种产量与产量构成因素的关联度大小顺序为:穗粗>穗行数>单株有效穗数>株高>千粒重>穗位高>空杆率>出籽率>穗长>行粒数>生育期。The correlation between yield and yield component factors were analyzed by method of grey correlative degree analysis for maize hy-brids of Yunnan northern regional trial. The result showed that the values of correlation degree between yield and yield component factors a-mong different hybrids were sequenced as follows：ear diameter 〉 row numbers per ear 〉 ear numbers per plant 〉 plant height 〉 thousand kernel weight 〉 ear position 〉 barren plant percentage 〉 shelling percentage 〉 ear length 〉 kernel numbers per row 〉 maturity period.

关 键 词：玉米杂交种 产量 产量构成因素 灰色关联度 

分 类 号：S513[农业科学—作物学]