摘要
玉米株型的改良对提高单产具有重要的作用。以常用的16个玉米自交系及其组配的8个杂交种F1为材料,研究了玉米株型性状(株高、穗位高、穗位比、雄穗长度、雄穗分枝数、基部第三节间茎粗、叶向值、叶夹角、叶面积)的杂种优势。结果表明,除基部第三节间茎粗外,F1其他株型性状均与母本呈显著正相关,F1所有株型性状与父本的相关系数均未达到显著水平;株高、穗位高、雄穗长度、基部第三节间茎粗和叶面积这5个性状在F1代杂种优势较大。
In this experiment, eight maize hybrids and their parents from different sources were used as materials to study the heterosis of plant-type traits. The results showed that most of the plant-type traits in F1 generation were highly correlated with their female parents, but were not correlated with their male parents, except the stem diameter of the third internode. In all the plant-type traits, five had relatively high heterosis in F1 generation,including the plant height, ear height, tassel length, stem diameter of the third internode and leaf area.
出处
《河南农业科学》
CSCD
北大核心
2013年第11期11-13,共3页
Journal of Henan Agricultural Sciences
基金
国家现代玉米产业技术体系建设专项(CARS-02-58)
河南省玉米育种重大科技专项(121100110300)
作者简介
作者简介：魏锋（1984-），男，河南新乡人，助理研究员，在读硕士研究生，研究方向：玉米遗传育种。E—mail：weif．eng0224@126．com
通讯作者：张学舜（1956-），男，河南新乡人，研究员，主要从事玉米遗传育种方面的研究。E—mail：zxs5605@126．com.
