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Analysis on genetic effect of yield traits for ten tropical and temperate maize populations

Kaijian Huang

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Abstract

Mixed linear(AD) model and MINQUE(1) method were applied to analyze the heritability,the ratio of genetic variance,the additive genetic effect and dominate genetic effect of seven yield traits for ten tropical and temperate maize populations.The results showed that the additive effect of populations contributing to the grain yield was more than the dominate effect;the order for narrow heritability of yield traits was ear diameter100-grain weight ear weight ear length row number per ear grain number per row ratio of barren ear.Two populations Yuzong 5 and Mohuang 1 had the highest additive effect;and four combinations including Mobai 962×Yuzong 5,Xinmo 1 ×WBM-C4,Mohuang 1×Suwan-1 and Mobai 962×EP7 had the highest dominate effects.Generally speaking,Yuzong 5 and Mohuang 1 were the best utilizing potential germplasm.

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What this paper is about

Mixed linear(AD) model and MINQUE(1) method were applied to analyze the heritability,the ratio of genetic variance,the additive genetic effect and dominate genetic effect of seven yield traits for ten tropical and temperate maize populations.The results showed that the additive effect of populations contributing to the grain yield was more than the dominate effect;the order for narrow heritability of yield traits was ear diameter100-grain weight ear weight ear length row number per ear grain number per row ratio of barren ear.Two populations Yuzong 5 and Mohuang 1 had the highest additive effect;and four combinations including Mobai 962×Yuzong 5,Xinmo 1 ×WBM-C4,Mohuang 1×Suwan-1 and Mobai 962×EP7 had the highest dominate effects.Generally speaking,Yuzong 5 and Mohuang 1 were the best utilizing potential germplasm.

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Available abstract

Mixed linear(AD) model and MINQUE(1) method were applied to analyze the heritability,the ratio of genetic variance,the additive genetic effect and dominate genetic effect of seven yield traits for ten tropical and temperate maize populations.The results showed that the additive effect of populations contributing to the grain yield was more than the dominate effect;the order for narrow heritability of yield traits was ear diameter100-grain weight ear weight ear length row number per ear grain number per row ratio of barren ear.Two populations Yuzong 5 and Mohuang 1 had the highest additive effect;and four combinations including Mobai 962×Yuzong 5,Xinmo 1 ×WBM-C4,Mohuang 1×Suwan-1 and Mobai 962×EP7 had the highest dominate effects.Generally speaking,Yuzong 5 and Mohuang 1 were the best utilizing potential germplasm.

Key concepts: Heritability, Germplasm, Biology, Temperate climate, Additive genetic effects, Grain yield, Yield (engineering), Agronomy

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