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Analysis of ear character combining ability of elite maize inbred line 87-1 and its demarcation of heterotic groups

Yang Peng

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Abstract

Inbred lines 87-1,87-3 and other fourteen chinese elite inbred lines are crossed in dialled cross style according to Griffing 4 design.Lattice design was employed to analyze GCA and SCA of 6 ear characters such as yield ,ear length,ear diameter, etc.The results showed that the yield GCA of 87-1 and 87-3 ranked medium among the sixteen inbred lines . But the GCA of ear diameter of 87-1 and 87-3 is the highest. Among the all hybreds of 87-1 crossed with the other inbred line,the SCA of 87-1×HZ 32 and 87-1×Zong 3 are outstanding in yield.The control heterosis reaches 13.31% and 9.85% respectively.The cluster analysis showed that 87-1 and Xu 178,P 138 have the closest relationship.So they belong to the same germplasm.

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What this paper is about

Inbred lines 87-1,87-3 and other fourteen chinese elite inbred lines are crossed in dialled cross style according to Griffing 4 design.Lattice design was employed to analyze GCA and SCA of 6 ear characters such as yield ,ear length,ear diameter, etc.The results showed that the yield GCA of 87-1 and 87-3 ranked medium among the sixteen inbred lines . But the GCA of ear diameter of 87-1 and 87-3 is the highest. Among the all hybreds of 87-1 crossed with the other inbred line,the SCA of 87-1×HZ 32 and 87-1×Zong 3 are outstanding in yield.The control heterosis reaches 13.31% and 9.85% respectively.The cluster analysis showed that 87-1 and Xu 178,P 138 have the closest relationship.So they belong to the same germplasm.

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Available abstract

Inbred lines 87-1,87-3 and other fourteen chinese elite inbred lines are crossed in dialled cross style according to Griffing 4 design.Lattice design was employed to analyze GCA and SCA of 6 ear characters such as yield ,ear length,ear diameter, etc.The results showed that the yield GCA of 87-1 and 87-3 ranked medium among the sixteen inbred lines . But the GCA of ear diameter of 87-1 and 87-3 is the highest. Among the all hybreds of 87-1 crossed with the other inbred line,the SCA of 87-1×HZ 32 and 87-1×Zong 3 are outstanding in yield.The control heterosis reaches 13.31% and 9.85% respectively.The cluster analysis showed that 87-1 and Xu 178,P 138 have the closest relationship.So they belong to the same germplasm.

Key concepts: Inbred strain, Germplasm, Heterosis, Biology, Yield (engineering), Veterinary medicine, Horticulture, Genetics

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Analysis of ear character combining ability of elite maize inbred line 87-1 and its demarcation of heterotic groups — Research Paper | ScholarLens