摘要
研究表明,当毛竹(Phyllostachys heterocyclacv.Pubescens)对叶斑枯病(Coccostroma arundi-nariae)中度或重度感病时,新竹的直径生长、重量均受到严重影响,成竹的竹壁物质积累下降,感病林分的出笋量大大减少,严重阻碍了毛竹生产的发展.用材林的损失估测模型以逻辑斯蒂模型为最优:L=24.236 1/[(1+20.908 1exp(-0.107 1X)];笋用林的损失估测模型以简单线性回归模型为最优:L=5.0209+0.702 9X.
The results show that when Phyllostachys heterocycla cv. Pubescens are infected with leaf spot blight （Coccostroma arundinariae） at middle or serious level, the diameter and weight growth of one-year-old bamboo and the accumulation of the substance of the stem of grown-up bamboo wiU decrease. This will impede the development of the production of bamboo seriously. Accordingly, different models of determination of the loss of the disease are made. The logistic model of lumber-producing stand is the best： L = 24.236 1/[1 ＋ 20.980 1 x exp（- 0.107 1X）]. The linear model of shoot-producing stand is the best： L = 5. 020 9 ＋ 0. 702 9X.
出处
《福建林学院学报》
CSCD
北大核心
2005年第4期338-343,共6页
Journal of Fujian College of Forestry
基金
福建省林业厅科技项目(闽林科[1998]10号)
福建省南平市延平区科技项目(352101-2004012)
关键词
毛竹
叶斑枯病
竹独足座菌
损失估计
防治指标
Phyllostachys heterocycla ev. Pubeseens
leaf spot blight
Coccostroma arundinariae
loss estimation
control criterion
