辽宁地区糯玉米鲜穗产量与农艺性状灰色关联度分析

Grey Relation Analysis on Fresh Ear Yield and Agronomic Traits of Waxy Corn in Liaoning Province

为研究辽宁地区糯玉米主要农艺性状对产量的影响,选育出优质高产鲜食糯玉米新品种,应用灰色关联度分析方法,对参加辽宁省区试的10个糯玉米品种的主要农艺性状与鲜穗产量数据进行关联分析。结果表明:糯玉米的农艺性状与鲜穗产量关联度大小依次为:秃尖>穗粗>出籽率>行粒数>穗长>穗位高>株高>百粒质量>穗行数>生育期。因此,在选育辽宁省糯玉米新品种时,应注重对秃尖和穗粗性状的选择。

In order to study the effect of main agronomic traits on yield of wax corn in Liaoning Province,and breed varieties with superior quality and high yield,the correlation between main agronomic characters and fresh ear yield data of 10 waxy maize varieties participating in Liaoning regional trial were analyzed through grey relation analysis.The results showed that the correlation between agronomic characters and fresh ear yield of waxy maize was as follows:bald tip length>ear diameter>kernel rate>kernel per row>ear length>plant height>100-kernel weight>ear row number>growth period.Therefore,attention should be paid to the selection of bald tip length and ear diameter characters in the breeding of new waxy corn varieties in Liaoning province.