南斯拉夫玉米杂交种穗粒结构初步分析

对３３个南斯拉夫玉米杂交种产量和穗粒结构特点进行了分析，并与国内对照杂交种有关性状进行了比较，结果表明，行粒数、千粒重是决定其产量的直接因素，稳长和出子率主要通过行粒数间接影响杂交种产量，穗行数的作用较小，该批杂交种突出的穗长、部分杂交种的行粒数和千粒重及不同的穗粒结构特点在育种上具有潜在的间接利用价值。

Preliminary analysis on ear-kernel structure of hybrid corns from Yugoslavia

Analysis was conducted on the yield and ear kernel structure characteristics of 33 Yugoslavia hybrids and trait comparison was carried out with the domestic control check hybrid.The results were as fellows: the kernels per row and the 1000 kernel weight were the direct factors to determine the yield of the Yugoslavia hybrids, the ear length and the rate of grain yield indirectly affected the hybrid yield through the kernels per row, row numbers per ear had little effect. the prominent ear length, the kernel per row and 1000 kernel weight of some hybrids and the different ear kernel structure characteristics had potential indirect application value in breeding.