[Screening strains for Trichoderma spp. for strong antagonism against ginseng root pathogens and study on their biological characters].
OBJECTIVE
To screen the Trichodenna spp. for strong antagonist against ginseng root pathogens.


METHODS
The biological characters of ten Trichoderma strains were compared by culturing on different media. And their antagonistic activity against Phytophthora cactorum, Cylindrocarpon destructans and Rhizoctonia solani were measured on PDA.


CONCLUSIONS
Tv04-2 and Th3080 showed a good growth on soil solution medium and PDA, and also showed high inhibitory efficacy to the three pathogens. The two Trichoderma strains showed different growth rate under light conditions and pH. Trichoderma strains were sensitive to most fungicides used in ginseng root disease controlling, however Tv04-2 was not sensitive to the fungicide Junchong Jueba.
Zhao
A-Na
AN
Institute of Medicinal Plant, Chinese Academy Medical Sciences and Peking Union Medical College, Beijing 100094, China.
Ding
Wan-Long
WL
Zhu
Dian-Long
DL
D001203:Ascomycota / Q000472:pathogenicity; D006863:Hydrogen-Ion Concentration; D008027:Light; D005894:Panax / Q000382:microbiology*; D010838:Phytophthora / Q000472:pathogenicity; D010935:Plant Diseases / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology; D010946:Plants, Medicinal / Q000382:microbiology; D012232:Rhizoctonia / Q000472:pathogenicity; D012988:Soil Microbiology; D014242:Trichoderma / Q000254:growth & development / Q000302:isolation & purification / Q000502:physiology*