黑龙江农业科学Issue(3)：1-5,5.
玉米生理成熟后籽粒脱水速率与主要农艺性状的相关分析
Correlation Analysis on Dry-down Rate and Main Agricultural Traits in Maize after Physiological Maturity
摘要
Abstract
In order to breed new maize variety with rapid dry-down rate, s set of complete diallel cross used 10 inbred lines with different dry-down rate in Heilongjiang province was adopted to study genetic correlation and path analysis between 12 main agricultural traits and dry-down rate after physiological maturity. The results showed that the performance of 4 traits including the ear diameter, rows per ear, kernel width and rate of embryo weight to endosperm weight were significantly positively corrected with kernel dry-down rate, and the performance of 4 traits including 100-kernels weight,ear length, volume rate of embryo to kernel and pericarp thickness were significantly negatively corrected with kernel dry-down rate. Path analysis showed that the direct path coefficients of 4 lraits including the ear diameter, rows per ear, kernel width and rate of embryo weight to endosperm weight and kernel dry-down rate after physiological maturity were positive, and the 4 traits including 100-kernels weight, ear length, volume rate of embryo to kernel and pericarp thickness were negalive. The maize hybrid with rapid dry-down rate should be wide and short ear, wide kernel, thin pericarp, low 100-kernels weight.关键词
玉米/脱水速率/农艺性状/相关分析Key words
maize/dry-down rate/agronomic trails/correlalion analysis分类
农业科技引用本文复制引用
张立国,范骐骥,陈喜昌,李波,张宇,修丽丽..玉米生理成熟后籽粒脱水速率与主要农艺性状的相关分析[J].黑龙江农业科学,2012,(3):1-5,5.基金项目
“十二五”国家粮食丰产科技工程资助项目 （）
黑龙江省农业科技创新工程资助项目 （）
