Through excavation and selection of ‘Hexiniujiaojiao’ pepper(Capsicum annuumL.),this paper clarified the creation and heterosis utilization of pepper backbone parent 6421 and its derivated lines. The paper also analyzed why 6421 became the backbone parent, and expounded the experience gained during its breeding and selection.%通过对河西牛角椒的挖掘及选择，阐明骨干亲本6421及其衍生系的创制以及杂种优势利用，并分析了6421成为骨干亲本的原因，总结了选育骨干亲本的经验。
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机译：EMS诱导辣椒“6421”突变体库的构建及矮秆突变体的鉴定与分析Construction of Mutant Population and Analysis of Dwarf Mutants in "6421" (Capsicum annuum L.) through EMS Mutagenesis
