绿竹地下不同类型竹蔸产笋能力研究

A Study on Shoot Production Ability of Different Types of Dendrocalamopsis oldhami

绿竹的竹蔸主要有:立竹竹蔸(YY)、与立竹相连的竹蔸(WY)、与立竹不相连的竹蔸(WW)等3种类型,对这3种类型竹蔸的产笋能力进行研究,结果表明:竹蔸YY、竹蔸WY和竹蔸WW的产笋能力都随着竹蔸年龄的增大而减小。在立地条件B中,平均产笋量最大的竹蔸种类为1年生立竹竹蔸(YY),大约平均产笋量为4.21 kg/个;在立地条件C中,平均产笋量最大的竹蔸种类为2年生立竹竹蔸(YY),大约平均产笋量为1.53kg/个;然而在立地条件C中,3年生立竹竹蔸(YY)的平均产笋量不是很理想,最大只有0.85kg/个;其中每种立地条件中的平均笋产量都不足1kg/个的竹蔸种类为与立竹不相连的竹蔸(WW);同时,立竹年龄是影响与立竹相连的竹蔸(WY)产笋量的最大因素,其影响力远远大于其自身年龄所带来的影响。

There are three main types of Bamboo stump:bamboo stump(YY),connected with bamboo stump(WY),not connected with bamboo stump(WW),to research bamboo stump these three types of ability to produce shoots,the results showed that:bamboo stump YY,bamboo stump WY and bamboo stump WW production capabilities are as bamboo shoots stump age decreases,which in 1a YY bamboo stump,the site type B,average production shoots the maximum volume of 4.21kg/a,2a bamboo stump in YY,a site type C,the average amount of production shoots up to 1.53kg/a,in a bamboo stump YY 3a,the site type C,the average amount of production shoots up to 0.85kg/months;bamboo shoots stump WW′s average production capacity not exceeded 1kg/months;bamboo stump WY producing bamboo shoots are protected by the influence of age is greater than the impact of their own ages.