茶杆竹笋期生长规律及立竹密度研究

Study on Growth Regularity of Psudosasa amabil During its Shooting Period and Density

对茶杆竹出笋成竹规律及其合理立竹密度进行研究,表明茶杆竹出笋量随时间的变化进程为"少—多—少"。笋期呈"S"型曲线。不同笋期的竹高生长方程相关系数为0.9371～0.9418,经检验,达到显著水平,表明用Logistic方程回归效果较好。立竹密度试验表明茶杆竹林分密度应以11250株/hm2为适宜。

The growth regularity of Psudosasa omabil and its probably suitable density were studied. The results were as follows： The shoots of Psadosasa amabil firstly slower and then become faster, at last get slower again. Its shooting period is “S”curve. The growth equation relevance coefficient in different shooting period of Psudosasa omabil is 0.9371-0.9418. It has reached remarkable level after inspection and result of Logistic Regression equation is relatively good. The experiment of Psudosasa omabil density showed that its suitable density is 11250 culm/hm^2.