玉米自交系铁T0270的应用研究

通过灰色关联度方法,研究以铁T0270为父本的6个杂交种的农艺性状和产量的关系。结果表明：铁T0270在这些品种中最重要的因素是穗长,其次是行粒数,株高、穗位、穗粗、百粒重、出籽率、秃尖性状对产量的影响较小,尤其秃尖的影响最小。

Application Research on Corn Inbred Lines Tie T0270

The relationship between yield and agronomic characters of six corn variety whose male parent was Tie T0270,was studied on applying the method of grey correlated grade. The results showed that： The most important factor was ear length for Tie T0270 in these varieties. The second factor was row grains; The agronomic characters had less important to yield were plant height,height from ground to ear,ear thickness, weight of hundred grains,ration of grain weight to ear weight,bald tip length,etc. The bald tip length was the weakest factor.