辽春系列小麦主要产量相关性状的灰色关联分析

The Gray-relation Analysis of Main Related Yield Characters of Liaochun Series Wheat Varieties

应用灰色关联度分析方法,对2012年种植的辽春系列小麦品种(系)的7个主要性状进行了综合评价,结果表明:各性状与产量的关联度大小排序为:基本苗数>有效穗数>株高>穗粒数>生育期>千粒重>穗长。基本苗数、有效穗数、株高、穗粒数、生育期、千粒重、穗长等因素与产量的关联度较高,与产量的关系较密切,对产量影响较大。在选育小麦品种时,首先要保证小麦试验小区的基本苗数和有效穗数相当,然后选择合适的株高和穗粒数以及适当的生育期、千粒重和穗长。

Used the Gray-relation analysis, we evaluated seven main characters of Liaochun series wheat varieties planted in 2012. The results showed that the sequences of related degrees in each character with yields were：basic wheat seeding 〉 spike numbers per Mu 〉 plant height 〉 kernel weights per spike 〉 growth period 〉 thousand kernel weight 〉 spike length. These characters with yields had higher correlation degree, had close relationship with yields and greater impact on yields. When breeding wheat varieties, we ensure the basic wheat seeding and spike numbers per Mu try to be considerably. ,and then choose the appropriate plant height and kernel weights per spike. Choose the appropriate growth period, thousand kernel weight, spike length.