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以尾叶桉和巨尾桉为材料 ,1993和 1994年在广东省开平市镇海林场建立了 2个外生菌根菌接种试验 ,均采用裂区设计 ,4次重复 ,每试验均 2个树种为主区 ,菌根菌处理为副区。试验 1有 8个外生菌根菌处理 ,每处理小区 6株或 9株 ,试验 2有 3个外生菌根菌处理 ,每处理小区 9株。造林后 ,定期观测树高、地径或胸径。试验结果表明 :树种内菌根菌效应分析发现 ,巨尾桉所有指标在菌根菌间存在显著差异 ,尾叶桉只是某些指标在菌根菌间有显著差异 ,表明两树种对相同菌根菌处理的反应不同 ;树种联合方差分析表明 ,试验 1中所有指标在区组间、树种间、菌根菌处理间均有显著差异 ,从方差分量看 ,树种效应 >树种×菌根菌互作效应或菌根菌效应 ;试验 2中树高指标在树种间和菌根菌处理间均存在显著差异 ,而 2 4个月时胸径指标在树种间无显著差异 ,但胸径在菌根菌处理间有极显著差异 ,树高指标的方差分量为树种效应 >树种×菌根菌互作效应或菌根菌效应。胸径的方差分量为菌根菌效应 >树种×菌根菌互作效应 >树种效应。分析表明树种×菌根菌互作效应存在时间上的不稳定性 ;同时 ,讨论了外生菌根菌应用中树种因素的重要性。
Eucalyptus urophylla and E. grandis were used as materials. Two ectomycorrhizal inoculation experiments were conducted in 1993 and 1994 in Hailin Farm, Kaiping City, Guangdong Province. The main area, mycorrhizal bacteria treatment as a vice district. In experiment 1, there were 8 ectomycorrhizal fungi, 6 or 9 per plot, and 3 ectomycorrhizal fungi in experiment 2, 9 in each plot. After afforestation, regularly observe the tree height, diameter or DBH. The results showed that all the indexes of Eucalyptus grandis × E. grandis had significant differences among mycorrhizal fungi, but some indexes of Eucalyptus urophylla only had significant differences among mycorrhizal fungi, indicating that the two species had the same mycorrhizal fungi The results showed that there was a significant difference in all the indicators in experiment 1 among the groups, among the species and between mycorrhizal treatments. According to the variance component, the effect of tree species> species of mycorrhizal fungi Effect or mycorrhizal fungi. In the second experiment, there were significant differences in the tree height index between tree species and mycorrhizal fungi, but there was no significant difference in DBH between the two species at 24 months. However, There are extremely significant differences. The variance component of tree height index is tree species effect> tree species × mycorrhizal fungi interaction or mycorrhizal effect. The variance of DBH is mycorrhizal effect> tree species × mycorrhizal fungi interaction> tree species effect. The analysis shows that there is a time instability in the interaction between tree species × mycorrhizal fungi. At the same time, the importance of tree species in ectomycorrhizal fungi is discussed.