Abstract: A seed genetic model with diploid embryo and triploid endosperm was used to analyze embryo,endosperm,cytoplasmic and maternal effects correlations and their G α E interaction correlations for fat traits on maize kernel, the results confirmed that significantly negative correlations existed between oil and palmitic acid, linoleic acid and α-inolenic acid,while significantly positive correlations showed between oil and stearic acid,oleic acid. Further research showed that significantly negative embryo additive correlations(r_Ao=-1.000^**)and cytoplasm correlations (r_C=-0.772^**)existed between oil and palmitic acid,while significantly positive embryo additive correlations (r_Ao =0.793^**),cytoplasm correlations (r_C=-0.772^**)existed between oil and stearic acid, and embryo additive interaction correlation between oil and linoleic acid ( rAoE=1.000^**),oil and α-inolenic acid. For fatty acid compositions, significantly negative correlations showed between palmitic acid and oleic acid stearic acid and α-inolenic acid,oleic acid and linoleic acid,cinolenic. While significantly positive correlations existed between palmitic acid and linoleic acid,α-inolenic acid the same between stearic acid and oleic acid linoleic acid and α-iolenic acid. Further analysis indicated that significantly positive endosperm additive interaction correlations (rAoE=1 .000^**),maternal additive interaction correlations (rAmE=1 .000^**)existed between palmitic acid and steuric acid,and embryo additive interaction correlation ( rAoE=1 .000^**)between linoleic acid and α-inolenic acid,while significantly negative maternal additive interaction correlation(rAmE=-1 .000^**)showed between stearic acid and linoleic acid,and significantly negative cytoplasmic correlation(rC=-0. 613^**)between stearic acid and α-linolenic acid. The correlativity of oleic acid and linoleic acid (rε=-0.402 ^**),linoleic acid and α-linolenic acid (rε=-0.412^**) were easily affected by environment or error.

Key words: Maize kernel, Fat traits, G×, E interaction correlations, Indirection selection

CLC Number: 

• S513.03