摘要
利用动态比较方法对深州蜜桃自然杂交后代进行了研究,结果表明,叶柄粗和叶形指数在童期的变化动态与成年期和嫁接树不同,可望作为判别阶段发育进程的标志性状。根据标志性状依叶位的回归变化,试估计了群体平均生理童程转折点(83.5cm)及平均转变区范围(38.2cm),平均结果高度为121.7±16.4cm,株间的转变区大小相对稳定,结果部位的高低较大程度上受生理童程的影响。株间童期叶性状的均值差异不足以判断童程高低。
The dynamic comparative method was used.The regularity of the leaf stem diameter and the leaf index in the juvenile zone were different from that in their adult zone and that in the graft trees.It was possible to be used to mark the phase changes.The average physiological juvenile span(PJS)(83.5 cm)and the average transitional zone(38.2 cm)were estimated by the regression of the mark characters and the leaf position. The average fruit position of the seedlings were at 121.7±16.4cm.The limits of the transitional zone be- tween plants were relatively stable.The fruit position was affected mainly by PJS.The correlation coeffi- cients between the average leaf characters and the PJS were lower than that of the test of significance.
出处
《果树科学》
CSCD
北大核心
1997年第1期28-31,共4页
Journal of Fruit Science
