很多树木,特别是一些花灌木,正是在初秋时节分化花芽,如果此时能够合理修剪,不仅利于树木的花芽分化,还可以提高新生枝条的木质化程度,有助于树木安全越冬。
❷ many trees, especially some flowering shrubs, differentiate flower
buds in early autumn. If they can be properly pruned at this time, it
will not only facilitate the flower bud differentiation of trees, but
also improve the lignification of new branches, which will help trees
survive the winter safely.
对于榆叶梅、碧桃等,可采取扭梢等措施,控制其枝条的营养生长,节省养分用于花芽分化。对其他树木的新生枝条,可适当摘心。经过摘心的枝条,更加粗壮,木质化程度也更高,抗寒能力也更强。对于紫薇、月季、木槿等秋季开花的花灌木,还应在每次花后,及时将残花剪除,防止其结果,以免消耗过多养分,影响生长。
For Prunus pumila, green peach, etc., measures such as twisting the
shoot can be taken to control the vegetative growth of its branches and
save nutrients for flower bud differentiation. The new branches of other
trees can be picked properly. After plucking, the branches are
stronger, lignified and have stronger cold resistance. For autumn
flowering shrubs such as crape myrtle, rose and hibiscus, the residual
flowers should be cut off in time after each flower to prevent their
bearing, so as not to consume too much nutrients and affect their
growth.