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Genetic Analysis of Combining Ability of Yield Properties of Maize

Xiang Wang

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Abstract

Dialled_cross analysis of yield properties of eight Maize inbred_lines showed that there are notable difference between their general combining ability(GCA)and special combining ability(SCA).GCA and SCA affect the yield constitution of maize hybride F 1,but the effect of SCA on F 1 is greater than that of GCA.There is no obvious relationship between SCA and GCA.It is suggested that when the maize hybrids are associated and the inbred_lines are improved ,both the GCA and SCA of their parents must be given attention to, and the model of heterosis for utilization and model of selection inbred_line should be persisted.

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What this paper is about

Dialled_cross analysis of yield properties of eight Maize inbred_lines showed that there are notable difference between their general combining ability(GCA)and special combining ability(SCA).GCA and SCA affect the yield constitution of maize hybride F 1,but the effect of SCA on F 1 is greater than that of GCA.There is no obvious relationship between SCA and GCA.It is suggested that when the maize hybrids are associated and the inbred_lines are improved ,both the GCA and SCA of their parents must be given attention to, and the model of heterosis for utilization and model of selection inbred_line should be persisted.

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Available abstract

Dialled_cross analysis of yield properties of eight Maize inbred_lines showed that there are notable difference between their general combining ability(GCA)and special combining ability(SCA).GCA and SCA affect the yield constitution of maize hybride F 1,but the effect of SCA on F 1 is greater than that of GCA.There is no obvious relationship between SCA and GCA.It is suggested that when the maize hybrids are associated and the inbred_lines are improved ,both the GCA and SCA of their parents must be given attention to, and the model of heterosis for utilization and model of selection inbred_line should be persisted.

Key concepts: Inbred strain, Heterosis, Hybrid, Biology, Selection (genetic algorithm), Zea mays, Yield (engineering), Agronomy

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