Studies on the Main Agronomic Traits and Virus Resistance of Three DH Population Derived from Anther Culture of Capsicum annuum L.

doi:10.7668/hbnxb.2010.01.047

Abstract

Abstract: Measurement and statistic analysis were taken for the main agronomic traits and virus resistance in 3 double haploid (DH) population derived from anther culture of Capsicum annuum L.Results showed that genotype leaning was existed for the main agronomic traits in the DH population.Data of single fruit weight,longitudinal diameter of fruit,fruit shape index were lower than that of donor plant.Data of plant height,plant breadth,the number of leaves below the first flower bud,transverse diameter of fruit were close to the donor plant.It was proved that homozygous lines with various hiberarchy colored mature fruits could be obtained by DH inducing,and this is a powerful pathway in the new variety breeding for multigene controlling traits.One DH line with high resistance to both TMV and CMV was screened out from the population derived from the hybrid donor plant whose parents were sensitive or tolerant to the both viruses.This result proved that ideal lines with excelled traits could be got in the DH population.These results were utlizable for reversely guiding the choice of donor plant,predicting the phenotype of the regenerated plants,increasing the ratio of aimed plants and so on,which was very significant for the application of anther culture in the breeding of pepper.

Key words: Capsicum annuum L., Anther culture, DH population, Agronomic traits, Virus resistance

CLC Number:

S641.3

CHEN Bin1,GENG San-sheng1,ZHAO Hong1,ZHANG Xiao-fen1,ZHANG Bao-xi2,LIU Fan1. Studies on the Main Agronomic Traits and Virus Resistance of Three DH Population Derived from Anther Culture of Capsicum annuum L.[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(1): 231-238. doi: 10.7668/hbnxb.2010.01.047.

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