【作者】 解松峰； 谢世学； 李学宏； 王祖桥；

【Author】 Xie Song-feng,Xie Shi-xue,Li Xue-hong,Wang Zu-qiao

【机构】 陕西省安康市农业科学研究所；

【摘要】 文章应用灰色系统理论,对玉米杂交组合筛选中的株高、穗位高、穗长、穗粗、秃顶长、行数、行粒数、百粒重、出籽率9个与产量相关的因素进行了分析。结果表明,玉米组合产量因素与产量的关联度由大到小依次为:行粒数>穗长>百粒重>行数>出籽率>株高>穗粗>穗位高>秃顶长根据综合评判值综合评价了28个玉米杂交组合的优劣,将28个玉米杂交组合分为3类,综合表现优良的组合依次为杂交组合18、22、23、21、7、10,其中杂交组合18综合评价结果表明综合性状最好(r′=0.9132);综合表现一般的组合依次为28、12、13、3、5、4、14,其中组合14综合评价值最小(r′=0.7050),综合性状最差,其余组合表现位于中间综合表现较好,综合评判结果与生产实际中的表现基本一致。更多还原

【Abstract】 According to the application of gray system theory,this paper analyzes nine production -related factors——the maize hybrid combination screening in Plant Height、Ear length,Splike length、Ear diameter、Barren tip length、Rows per ear、Grain per row、100 - grain Weight、Produce grain rate.The results show that the correlation of maize combination of production factors with yield is: Grain per row>Splike length>100 -grain Weight>Rows per ear>Produce grain rate>Plant Height>ear diameter>Ear leagth>Barren tip length.based on the value of comprehensive evaluation,it has evaluated advantages and disadvantages of 28 corn hybrids combination,which is divided into three classes.The overall excellent performance combination is 18,22,23,21,7,10,in which hybrid combination 18 performs the best traits(r’ =0.9132);combination of 28,12,13,3,5,4,14 performs the average traits. The combination of 14 has the minimum value(r’ = 0.7050) and the worst comprehensive performance while the rest of combination perform better in the middle level.The results of comprehensive evaluation in this paper conform with performance in the production practice.更多还原