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利用小麦 Ｆ２ 代杂种优势是杂优利用的有效途径。利 用太谷核矮败小麦 制种技术很容易 获得 Ｆ１ 代杂种， Ｆ１ 代自交即可 获得 Ｆ２ 代杂种。本文分析了小麦 Ｆ２ 代杂交种优势利用的可行 性，论 述了利用矮败小麦获得 Ｆ２ 代杂种的技术环节及注意事项。
It is an effective way to utilize heterozygous heterosis to utilize heterosis of F2 generation in wheat. F1 generation hybrids can be easily obtained by using Taigu nuclear dwarf wheat seed production technology, F1 generation hybrids can be obtained F2 generation hybrids. This paper analyzed the feasibility of F2 hybrid utilization superiority in wheat, and discussed the technical aspects and precautions of F2 generation hybrid wheat accession using dwarf wheat.