摘要
从西南地区土壤上分离的１０４株木霉（Ｔｒｉｃｈｏｄｅｒｍａｓｐｐ．）和１７株绿色粘帚霉（Ｇｌｉｏｃｌａｄｉｕｍｖｉｒｅｎｓ）中筛选出４株对柑桔青霉菌（Ｐｅｎｉｃｉｌｌｉｕｍｉｔａｌｉｃｕｍ）和绿霉菌（Ｐ．ｄｉｇｉｔａｔｕｍ）均有强烈抑制作用的拮抗菌株：Ｔ４，绿色粘帚霉（Ｇ．Ｖｉｒｅｎｓ）；Ｔ５８，黄绿木霉（Ｔ．ａｕｒｅｏｖｉｒｉｄｅ）；Ｔ８３，桔绿木草（Ｔ．ｃｉｔｒｉｎｏｖｉｒｉｄｅ）。拮抗菌Ｔ４、托布津特克多对刺伤接种柑桔青霉菌的果实，均有明显抑制病情发展的作用。拮抗菌Ｔ４的抑制作用大体上与托布津相当，而略逊于特克多。然而无论是拮抗菌还是农药，均不能完全阻止接种果实发病。在果实受伤、并感染病原菌后，施用拮抗菌或在药越早，则抑制病情发展的效果越好。采收前后用拮抗菌Ｔ４、托布津和特克多处理的果实，贮藏３个月后，对柑桔贮藏期青、绿霉病和其它病害的防效达到９２．６％以上。
isolates strongly antagonistic to Penicillium italicum and P.digitatum were selected from 104 isolates of Trichoderma spp.and 17 Gliocladium virens.They were T4,C.virens;T58,T.aureoviride;T83,T.citrinoviride and T88,T.citrinoviride. Obvious suppression of disease development of sweet orange,inoculated with conidial suspension(105 spores/ml) of P.italicum,was observed through the treatments by amtagonist T4 and Topsin and Mertect.The effect of T4 was similar to that of Topsin,but slightly lower than Mertect.Over 92.6% control effectiveness of green and blue mold as well as other postharvest diseases was obtained either by antagonist T4 or by Topsin and mertect after 3 months storage of sweet orange.
出处
《西南农业学报》
CSCD
1995年第3期80-84,共5页
Southwest China Journal of Agricultural Sciences
关键词
柑桔
青绿霉病
生物防治
木霉
citrus green and blue mold
Biocontrol of postharvest diseases
Gliocladium virens
sweet orange.
