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在春播和夏播两种环境条件下,对一个普通与爆裂玉米自交系杂交组合的259个F3家系的 穗粒性状及其与膨化倍数的相关分析结果表明:F3代分离出优于爆裂亲本穗粒性状的家系较多;穗 粒性状是由微效多基因控制的数量性状;百粒重、穗粒重对膨化倍数直接或间接作用为较大负效应, 行粒数、轴粗、穗长对膨化倍数的直接作用为正效应,其它性状通过行粒数和穗长对膨化倍数的间接 作用多为正效应。因此,可以直接对穗长和行粒数进行正向选择,提高普×爆后代选系的产量。
Under the spring and summer sowing conditions, the correlation analysis of spike traits and their relationship with puffing multiples of 259 F3 lines from a normal and popcorn inbred line showed that F3 generation was better than the burst parent Spike traits are more pedigree; Ear traits are quantitative traits controlled by micro-multi-gene; 100-grain weight and spike weight have direct or indirect effects on puffing multiples, The direct effect of length on puffing multiple is a positive effect, and the other effects are mostly positive effect through the indirect effect of row grain number and panicle length on puffing multiple. Therefore, it is possible to make a positive selection of the spike length and grain number directly to improve the yield of popcorn selection.