鲜食型超甜玉米组合产量性状的相关及通径分析  

Correlation and Path Analysis on Yield Characters of F_1 in Super Sweet Corn

作　　者：乐素菊[1] 王晓明[2] 曾慕衡[1] 蔡文华[2] 

机构地区：[1]仲恺农业技术学院生命科学学院,广州510225 [2]仲恺农业技术学院农业与园林学院,广州510225

出　　处：《玉米科学》2007年第1期41-43,58,共4页Journal of Maize Sciences

基　　金：国家星火计划项目(2001EA780054);广东省星火计划项目(2003C201027)

摘　　要：对鲜食型超甜玉米组合产量性状进行相关及通径分析。结果表明:穗粗、穗长、行粒数与单穗净重、单穗鲜重显著或极显著正相关;秃尖长与穗行数、穗长显著或极显著正相关;叶脉数与株高、叶片数和行粒数极显著正相关。通经分析表明:穗长、穗粗、秃尖长、穗行数和叶脉数依次对单穗净重有直接影响;穗长、穗粗、秃尖长和叶片数依次对单穗鲜重有直接影响。Correlation and path analysis on twelve yield characters of Fl in super sweet corn were studied. The results showed that net weight per ear and fresh weight per ear （with leaves） were significantly and positively correlated with ear diameter, ear length and kernels per row. While bare tip length was significantly correlated with rows per ear and ear length. The correlations between vein number and plant height, leaf number, kernels per row were also significant. The result of path analysis showed that agronomic characters influencing net weight per ear orderly were ear length, ear diameter, bare tip length, rows per ear and vein number, and influencing fresh weight per ear orderly were ear length, ear diameter, bare tip length and leaf number.

关 键 词：超甜玉米 产量性状 通径分析 

分 类 号：S513.024[农业科学—作物学]