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中国农学通报 ›› 2003, Vol. 19 ›› Issue (4): 60-60.

所属专题: 玉米 烟草种植与生产

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河南主要优良玉米自交系利用潜力分析

赵保献 檀尊社 雷晓兵 韩卫红 宋汉强陈润玲 梁晓伟   

  • 出版日期:2003-08-25 发布日期:2003-08-25

Analysis on the utilization Potential of Nine Elite Corn Inbred Lines in Henan

Zhao Baoxian et al   

  • Online:2003-08-25 Published:2003-08-25

摘要: 选择9个河南省当前玉米育种的主要优良自交系按Griffing方法4设计组配36个杂交组合,对单株产量等15个性状的配合力及不同性状配合力之间的相关性进行了分析,结果表明: 除了出籽率外,各自交系其余14个性状的配合力之间存在着显著或极显著差异;自交系单株产量GCA与籽粒长、穗位高GCA之间显著相关;昌7-2、洛06、济533、郑22利用潜力较高,豫8701、中72、868利用潜力中等,洛1544、郑58利用潜力较低;自交系总配合力效应(TCAˊ=gi+ssi.)能够直观地反映自交系利用价值的大小,是较好的的配合力综合评价指标。根据以上研究结果,作者对这些自交系的特点进行了分析,并对这些自交系的改良和利用提出了自己的看法。

关键词: 玉米, 玉米, 倒伏率, 含水量, 产量, 种植密度

Abstract: The combining abilities and their relationships among 15 quantitative characters of 36 crosses, which were obtained from 9 main inbred lines in Henan, were analyzed by Griffing Ⅳ design. The results showed: <1> There were significant difference among combining ability of nine inbred lines in 14 characters with kernel rate exception.<2> There were significant relationship between the GCA of grain length 、plant height and grain yield per plant.<3>The sequence of the utilization potential of inbred lines was: Chang 7-2>Luo 06 >Ji 533 > Zheng 22 > Yu 8701> Zhong 72>868>Luo 1544 >Zheng 58. <4> The utilization value of corn inbred lines may be measured by it’s total combining ability effect(TCA′=gi+ssi.),the TCA′ is a useful comprehensive index for analysis on combining ability of inbred lines. Studies on the utilization and improvement of nine inbred lines in the future were discussed