春玉米籽粒脱水速率主基因+多基因混合遗传模型分析

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关键词春玉米；籽粒脱水速率；六个世代；主基因 + 多基因遗传分析

中图分类号S513文献标识码A

文章编号 0517-6611（2025）20-0018-04

doi：10.3969/j.issn.0517-6611.2025.20.004

Abstract[Objective]Inorder to explore the genetic lawof grain dhydrationrateof spring maize.[Method]Six generationsof P1，P2，F1 ， F2，B1 and B2 wereconstructedbyusing two varieties NP118and MO17withlarge diferences indehydrationrateasparents.Thegenetic model analysis of grain dehydration rate was carried out by the main gene + polygene mixed genetic model analysis method.[ Result] The average dehydration rate of F1 generation in reciprocal cross was the fastest，and the F2 generation population showed a continuous approximate normal distribution，hchossttitharacteristofatitiitgeetcodelfgaieeldaateas ditive-domnaepistasis（D）lygeeticododiiectplaajorlditisablyidac segregatingeatidvotaltsveiletousiouyidpotoretialouatiooru thermappingandminngthekeygnescontrlingthgaindehydrationateofprgmaizeandbredingnwvarietiessuitablefraed harvesting.

Key words Spring maize ; Grain dehydration rate;Six generations ;Major gene + polygene genetic analysis

玉米是我国三大粮食作物之一，作为我国当前种植面积最大、总产量最高的重要粮食作物之一，在保障我国粮食安全的重大战略中占有重要地位。（剩余6878字）