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对6个不同生态类型小麦品种及其完全双列杂交F1幼穗分化特点和穗分化杂种优势的研究表明,杂种幼穗分化各主要时期普遍存在杂种优势;不同生态类型组配方式的杂种穗分化优势不同;穗分化杂种优势与产量杂种优势具有一定相关关系;黄淮麦区杂交小麦最佳生态组配方式为春性品种×冬性品种。
Studies on differentiation characteristics and heterosis of F1 spike of F1 hybrids and their complete diallel cross in 6 different ecotype wheat cultivars showed that hybrid spike differentiation was prevalent in all major stages of hybrid panicle differentiation. Hybrid panicle differentiation of different ecotypes There were some correlations between the heterosis of heterosis and heterosis of yield in hybridization. The best ecological combination method of hybrid wheat in Huanghuai wheat was spring variety × winter variety.