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本项研究的目的在于分析F_5抽穗、开花日数分布规律;比较不同组合生育日数分离范围、极早熟品系的超早亲表现及早、晚熟品系的性状差异;确定F。抽穗、开花日数变异程度、生育日数稳定进程以及定向选择效果,为育种应用提供依据。一、材料与方法于回头青×熊岳253、回头青×甘南双心红、熊岳360×甘南双心红、熊岳360×马跷脚、马跷脚×熊岳360、熊岳360×NK_(120)、甘南双心红×NK_(120)、甘南双心红×马跷脚、回头青×熊岳360、KS_(30)×三尺三、早红壳×大八叶、早红壳×S.Verticilliflorum 12个组合的F_4世代,按抽穗时间每隔5天左右,选
The purpose of this study was to analyze the distribution pattern of F_5 heading date and flowering date. To compare the segregation range of different combinations of birth days, the performance of the very early-maturing lines of early-early-maturing lines and the characteristics of early and late maturing lines; Heading, the variation of the number of flowering days, the number of birth days stable process and the effect of directional selection, provide the basis for breeding applications. First, the material and methods in the Hui Tou × Xiong Yue 253, Hui Qing × Gannan double heart red, Xiong Yue 360 × Gannan Double Heart Red, Xiong Yue 360 × Stilts feet, Stilts × Xiong Yue 360, Xiong Yue 360 × NK 120, Gannan Double Heart × NK 120, Gannan Double Heart Red × Skeletal Feet, Tou Tou Qing × Xiong Yue 360, KS_ (30) × three feet three, early red shell × big octagonal, early red Shell × S.Verticilliflorum 12 combinations F_4 generation, according to the heading time every 5 days, the election