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通过对15种柑桔砧木实生苗的童期和童程的调查研究和统计分析,认为童期的长短首先取决于遗传基础。童程与童期呈极显著正相关。节间短的实生苗童程也短,故节间长度可作为早实性早期选择的参数。童期越长的品种类型,结束童期的分枝级数越高,干周和冠径越大,树体也越高,首次始花点的分枝级数可作为实生苗结束童期的主要形态指标。高砧芽接实生苗可降低首次开花点分枝级数和缩短童程,从而缩短童期1.77～3.33年。
Through the investigation and statistical analysis of childhood and child process of 15 kinds of citrus rootstock seedlings, we think that the length of childhood depends on the genetic basis first. Childhood and childhood was extremely significant positive correlation. Internode short seedlings Tong Cheng is also short, so the length of internode can be used as an early choice of early real parameters. The longer the type of childhood, the higher the number of branches at the end of childhood, the longer the dry week and crown diameter, the higher the tree body, the first rachis branches can be used as end of childbirth The main morphological indicators. High anvil bud seedlings can reduce the initial flowering branches and shortened the order of the child, thereby shortening the period of 1.77 ~ 3.33 years.