黄甜竹笋用林地下鞭生长特性分析

Analysis on Growth Characteristics of Rhizome of Acidosasa edulis Forest for Bamboo Shoot

在福建省尤溪县开展了黄甜竹笋用林不同年龄竹鞭生长特性的调查研究,结果表明:黄甜竹笋用林的鞭段数、鞭长、鞭径随鞭龄增长而减小,1~4龄鞭段数占总鞭段数78.6%,鞭长量占鞭长总量的80.9%,土壤层(10~40 cm)的竹鞭长度占总长度的88.1%。随着竹鞭年龄增长,壮芽、弱芽和空芽节的数量呈现减少变化,笋芽则为少-多-少的变化趋势,壮芽和笋芽在竹鞭节上的分布在第1~30节内较为集中,且壮芽分化成笋芽的能力也强。根据竹鞭生长规律,提出了采取适时的经营措施可为竹林高产稳产创造条件。

The growth characteristics were investigated on different ages rhizome of Acidosasa edulis forest for bambooshoot in Youxi County,Fujian Province.The results show that the number of whips,length and diameter of rhizome decreased with the growth of rhizome age.The number of 1-4 year-old rhizome section accounted for 78.6%of the total section;the amount of rhizome length accounted for 80.9%of the total length;88.1%of bamboo rhizome length was distributed in 10-40 cm soil layer.With the growth of bamboo rhizome,the numbers of strong buds,weak buds and empty bud nodes decreased relatively,and the variety regulation of shoot bud number were less to more to less.The distribution of strong buds and shoot buds on rhizome was mainly in the 1st-30th node;the ability of strong buds to develop into shoot buds was also strong in the part.Combined with the growth regularity of bamboo rhizome,scientific management techniques could create conditions for high-yield of bamboo forest.