玉米产量与主要农艺性状的灰色关联度分析  

Grey Relation Analysis Between Agronomic Traits and Yield of Maize

作　　者：马全姿 石志斯[1,2] 陈辉云[1,2] 莫云锦 张宗急[1,2] 

机构地区：[1]广西壮族自治区桂林市农业科学院 [2]广西农业科学院桂北分院,广西桂林541006

出　　处：《现代农业科技》2015年第13期25-26,28,共3页Modern Agricultural Science and Technology

基　　金：国家现代农业技术体系广西创新团队(玉米)建设项目(nycy txgxcxtd-07)

摘　　要：利用灰色系统理论中的关联度分析法对玉米24个杂交组合与产量相关的11个性状进行分析,研究其在当地(桂林地区)特定气候条件下的主要农艺性状与产量性状之间关系,进而筛选出适合桂林地区种植与推广的玉米品种。结果表明,玉米产量与其相关性状的关联度为:单穗粒重0.890 0、穗长0.741 0、穗粗0.758 5、秃尖长0.704 5、穗行数0.709 5、行粒数0.661 3、百粒重0.739 4、出籽率0.720 9、株高0.743 7、穗位高0.726 3、生育期0.761 4;关联序为:单穗粒重>生育期>穗粗>株高>穗长>百粒重>穗位高>出籽率>穗行数>秃尖长>行粒数。因此,在玉米育种实践中,应注重对单穗粒重、生育期的选择,兼顾其他性状的协同发展,有利于培育高产品种,进而选择单穗粒重较重、生育期适宜的品种在桂林地区推广。11 traits related with yield for hybrid maize combinations were analyzed by grey relational grade analysis,relationship between main growth traits and yield traits were studied in the local（Guilin area）climatic eonditions ,and then the maize varieties which suitable for the Guilin area were sereened. Results showed that the correlation for maize yield and related traits was that grain weight per spike 0.890 0, spike length 0.741 0, spike coarse 0.758 5,bald tip length 0.704 5,ear rows 0.709 5, grains per row 0.661 3,100 seed weight 0.739 4, seed rate 0.720 9,plant height 0.743 7, ear height 0.726 3 ,growth period 0.761 4. Correlation order was the grain weight per spike〉growth period〉ear diameter〉plant height〉ear length〉100 grain weight〉ear height〉seed rate〉number of rows per ear〉bald tip length〉grain number per row. Therefore, in maize breeding, it should pay great attention to the grain weight per panicle, growth period, is conducive to the cultivation of high yielding varieties, and then select the single grain heavy, growth period of suitable varieties popularized in Guilin area.

关 键 词：玉米 产量 农艺性状 灰色关联度 

分 类 号：S513[农业科学—作物学]