摘要
用稀释平板法对 5 1份来自不同地区、不同生态环境的丹参、川红花等 10种主要川产道地中药材根际土样分离到 6 2个木霉菌株 ;木霉种群以哈茨木霉 (Trichodermaharzianum)为主 ,其次是桔绿木霉 (T .citrinoriride)和拟康氏木霉 (T .pseudokoningii)等。对峙法培养结果表明 ,木霉菌株T2 3,T5 6 ,T4 5对尖孢镰刀菌、立枯丝核菌均具有较强的拮抗作用。初步研究了T2 3,T5 6在田间对中药材的防病作用 ,木霉处理不仅能显著提高川红花、丹参的出苗率 ,且对其幼苗具有促生作用 ,对川红花枯萎病和丹参根腐病的相对防效均达 5 0
Sixty two isolates of Trichoderma spp. were obtained from the soils around rhizosphere of red ginseng, chuan safflower and other medicinal herbs growing in various entironment.The main Trichoderma population are T.harzianum , T.citrinoriride and T.pseudokoningii in these soils. Of these isolates,T23,T45 belonging to T.harzianum and T56 belonging to T.citrinoriride effectively controlled Fusarium oxysporum and Rhizoctonia solani ,repressed 55.8%～75.1% growth rate of mycelium, the control effects on chuan safflower wilt and red ginseng root rot were above 50% in the field,at the some time, and they also stimulate the emergence of red ginseng and chuan safflower.
出处
《云南农业大学学报》
CAS
CSCD
2002年第4期386-388,共3页
Journal of Yunnan Agricultural University
基金
四川省基金项目 (96 0 0 1- 1- 1- 7- 10 )
