大多数的黑胡桃子代修枝后,伤口基本上没有在直径上表现出任何变化,但凋萎和愈合这两种现象却是常见的。在伤口凋萎和愈合上,家系间变异为其家系内变异的1.4—4.1倍。值高于较小伤口的子代,水平凋萎高于垂直凋萎;凋萎又高于愈合。伤口愈合与树种活力相关而与种源的地理纬度不相关。 After the majority of black walnuts were pruned, the wounds showed essentially no change in diameter, but both wilting and healing were common. In the wilting and healing of wounds, the variation among families was 1.4-4.1 times of that within the pedigree. Progeny that were higher in value than smaller wounds wilted higher than vertical wilting; withering was higher than healing. Wound healing is related to the vigor of the tree species and is not related to the geographic latitude of the provenance.