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笔者经过六年来的观察、分析,发现杂交组合的两个亲本在移植时的叶差与父母本:主茎总叶片差值,固定在一定范围内变动.移植叶差系数就是指春制杂交种的两个亲本在母本移植时的父母本主茎总叶片数的差值加上在一定范围内变动的常数. 母本移植时,根据田间定点记载的父本叶龄减去田间定点记载的母本叶龄,差值如果超过规定的移植叶差系数的上限,表示将来父本花期有偏早的趋势,超过的数值越大,甚至超过1以上,将来父本花期偏早4天以上;差值低于规定的移植叶差系数下限,甚至超出1以上,将来母本花期偏早5天以上;差值刚
After six years of observation and analysis, the author found that the difference between the two parents of the cross combination in transplanting and the parents: the difference in the total leaf length of the main stem changes within a certain range. Of the two parents in the mother of the parents of the main stem when the total number of leaves the difference between the leaf plus a constant change in a certain range of maternal transplant, according to the field of fixed-point record of the father leaf age minus the field record If the difference between the female parental leaf age and the difference exceeds the upper limit of the leaf transplanter differential coefficient, it indicates that there is a tendency that the male parental flower will have a tendency of being earlier in the future. The larger the value exceeds or exceeds 1, the future male parental flower will be 4 days earlier. The difference is lower than the lower limit of the leaf transplanter differential coefficient, even beyond 1, in the future more than 5 days earlier flowering female parent; the difference just