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以多穗形小麦陕２２９为测验系，与超大穗小麦８４加７９—３—１组配为Ｐ１、Ｐ２、Ｂ１、Ｂ２、Ｆ１和Ｆ２世代材料，采用明道绪提出的“利用各世代的小区平均数估记遗传参数的加权最小二乘法”对８４加７９—３—１穗部性状的基因效应进行了研究。结果表明，穗长遗传加性效应作用显著；结实小穗数遗传加性效应、加性与显性互作效应作用显著；小穗粒数遗传力低，各类基因效应均不显著；穗粒数遗传，加性效应、显性与显性互作效应作用显著；千粒重遗传，加性效应、加性与显性互作效应作用显著；单穗重遗传，加性效应、加性与显性互作效应、显性与显性互作效应作用显著。因此，该材料无论对于选育纯系品种还是杂种优势利用均具有广泛的应用前景。
In this study, wheat with multiple spikelets Shaan 229 was used as test line, and with extra large spikelets 84 plus 79-3-1 as P1, P2, B1, B2, F1 and F2 materials. Weighted Least Squares Estimation of Genetic Parameter by Means of Average Estimation "The gene effects of panicle traits of 84 plus 79-3-1 were studied. The results showed that the additive effect of spike length was significant. The additive effect of additive spikelet number and the additive effect of dominant spikelet number were significant. The spikelet number had low heritability and no significant effect of various genotypes. Number of inheritance, additive effect, dominant and dominant interaction effect is significant; thousand-grain weight genetic, additive effect, additive and dominant interaction effect is significant; single panicle weight inheritance, additive effect, additive and dominance Interaction effects, dominant and dominant interaction effect is significant. Therefore, the material has broad application prospects both for breeding purebred lines and for heterosis utilization.