选用12个糯玉米杂交种,在陕西关中夏播条件下,对株高、穗位高等8个性状的遗传力和相关进行初步分析。结果表明:不同性状间遗传变异力差异较大,其值大小依次为穗行数(92.48%)、株高(89.98%)、生育期(82.78%)、千粒重(82.31%)、穗位高(80.67%)、穗粗(69.64%)、行粒数(58.84%)、穗长(31.56%);诸性状与产量的相关关系中,以粒重最为密切,其次为穗粗和行粒数。 Twelve waxy corn hybrids were selected to analyze the heritability and correlation of eight traits including plant height and ear height under summer sowing conditions in Guanzhong, Shaanxi Province. The results showed that there were significant differences in genetic variation among different traits, with the order of the number of ear rows (92.48%), plant height (89.98%), growth period (82.78%), thousand kernel weight (82.31% 80.67%), ear diameter (69.64%), line number (58.84%) and ear length (31.56%). Among the correlations of traits and yield, grain weight was the most closely followed by ear diameter and grain number.