竹材霉变生物学的研究*Ⅱ.不同竹材基质的抗霉性

对11个竹种和不同竹龄、部位毛竹的竹材进行了自然和人工接种致霉菌试验。测定结果的方差分析和多重比较表明，竹种间的自然抗霉性顺序依次为：黄槽毛竹＞毛竹＞浙江淡竹＞刚竹和石竹＞红竹和毛金竹＞签篌竹＞苦竹＞黄古竹＞茶杆竹，前二种为抗霉竹种，后四种为霉竹种。竹材的抗霉性与竹材的预处理方法和贮存条件有相互作用，冬伐毛竹材的抗霉性随竹株年龄增长而增强，长至5－6度的毛竹，其竹材抗霉性极显著地高于2－4度的毛竹；毛竹杆材上部的抗霉性极显著地高于中、下部。

Studies on Biology of Bamboo Timber Moulding II.Resistance of Bamboo Substrates to Moulding

Various experimental methods were used to test natural resistance to moulds of the timber of eleven bamboo species, and the timber of Mao bamboo (Phyllostachys edulis (Carr.) H. de Lahaie) of different ages and from different positions on the stem. Bamboos were from north Zhe-jiang, the People's Republic of China. The results from analysis of variance and multiple contrasts were as follows:(1) The sequence of natural resistance of the timber of eleven bamboo species to the moulds from high to low was Phyllostachys edulis f. luteosulcata (Wen) Chao et Renv., P. edulis (Carr.) H. de Lahaie, P. meyeri McClure, P. viridis (Young) McClure and P. nuda McClure, P. iridenscens C. Y. Yao et S. Y. Chen and P. nigra Munro var. henonis (Miff) Stapt ex Rendle, P. nidularia cv smoothsheath McClure, Pleioblastus amurus Keng f., Phyllostachys angusta McClure, Pseudosasa amabilis Keng f.; the first two were resistant bamboo timbers and the last four were sensitive timbers, there was significant difference between them; interactions of bamboo species x pretreatm-ents and bamboo species x temperatures and humidities existed.(2) The resistance to the moulds of winter-felled Mao bamboo timber increased with the age of the bamboo, the timber of 9~12 years old Mao bamboo was significantly more resistant than that of 3~8 years old ones; the timber from the upper part of the Mao bamboo stem was significantly resistant than that from the middle and lower part of the same stem.