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在超高产栽培条件下,温麦6号小麦小花分化起始日与结束日均早于鲁麦22,小花分化总数鲁麦22多于温麦6号,小花分化强度主茎穗为温麦6号高于鲁麦22,一级分蘖穗为鲁麦22高于温麦6号,小花退化强度垄茎穗和一级分蘖穗一致,均为温麦6号高于鲁麦22;提高小花结实率是增加每穗粒数的主要途径。鲁麦22的籽粒灌浆速率和千粒重均高于温麦6号,在豫西成熟期较温麦6号晚4天。文中还讨论了提高小花结实率、增加穗粒数的栽培途径。
Under super-high-yielding cultivation conditions, the initiation and ending dates of floret differentiation of wheat in Wenmai 6 were all earlier than that of Lumai 22, the total number of florets differentiated in Lumai 22 was more than that in Wenmai 6, Higher than Lumai 22, the first tillering panicle was Lumai 22 and the second was Wenmai 6, and the floret degeneration intensity was the same with the first tillering panicle, both were higher in Wenmai 6 than Lumai 22; Rate is the main way to increase grain number per spike. The grain filling rate and grain weight of Lumai 22 were all higher than that of Wenmai 6, and maturity of Yumai was 4 days later than that of Wenmai 6. The paper also discussed ways to improve the seed setting rate and increase the number of grains per spike.