皱竹出笋成竹规律研究

Rhythm of Shooting and Growth for Phyllostachys bambusoides f.marliasea

对浙江临安引种的皱竹出笋成竹规律进行了研究,结果表明:皱竹出笋时间约始于5月12日,历时32d左右。退笋主要集中在初期和末期,其主要原因是营养不足。皱竹高生长遵循"慢-快-慢"的规律,昼夜高生长量变化不甚明显,在昼夜24h内出现2次生长高峰。

Rhythms of shooting and growth of Phyllostachys bambusoides f.marliasea were studied in this paper.The results were as follows：1）Bamboo shoots began to appear on May 12,and the shooting period lasted for 32 days or so.2）Shoot degradations was prevalent in the initial and terminal shooting stage due to nutrient deficiency.3）The height growth of young culms followed a logistic curve.4）The increment of young culms during night had no significant difference from that in daytime,and growth peaks appeared twice during a cycle of 24 hours.