摘要
木荷和杨梅苗圃施用壳聚糖 30～ 75kg·hm-2 ,经出苗 5 0d后统计 ,苗木立枯病的发病率分别降低了 17 5 %～ 15 6 %和 6 0 6 %～ 71 5 %。土壤根际放线菌的数量和拮抗菌的分析结果显示 ,壳聚糖主要通过增加拮抗菌的绝对数量而提高对立枯病病原真菌的抑制能力。木荷苗木根际土壤及树茎放线菌的抗镰刀菌和丝核菌平均数量 ,分别占供测放线菌总数的19 5 %和 10 0 % ,杨梅为 16 5 %和 9 1%。
Through the statistics in the fifty first day after the emergence,the disease rate of seedling blight reduced by 15.6%～17.5% and 60.6%～71.5%,respectively with 30～75 kg of chitosan per hm 2 in the nursery of Schima superba and Myrica rubra.Chitosan was mainly through increasing the absolute quantity of antagonistic microorganisms to enhance the inhibitory capacity for the pathogenic fungi of seedling blight.
出处
《福建林业科技》
2001年第1期40-43,共4页
Journal of Fujian Forestry Science and Technology
关键词
壳聚糖
生物防治
木荷
杨梅
立枯病
苗木
Chitosan
Biological control
Schima superba
Myrica rubra
Seedling raising
Seedling blight
