2024-03-28T14:50:07Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/841782018-08-01T11:43:51Zcom_10261_74com_10261_6col_10261_327
http://hdl.handle.net/10261/84178
89039
Selection of Trichoderma spp. isolates antagonistic to Rosellinia necatrix
Selección de aislados de trichoderma spp. antagonistas a rosellinia necatrix
Ministerio de Ciencia y Tecnología (España)
2010
artículo
Ruano Rosa, David
Moral, Lidia del
López Herrera, Carlos
rp07488
2010
Fifty-six bulk isolates of Trichoderma spp. from avocado (Persea americana Mill.), carnation (Dianthus caryophyllus L.), litchi (Litchi chinensis Sonn), rice (Oryza sativa L.) and sugar beet (Beta vulgaris L.) crops located in southern Spain were evaluated for antagonism against one isolate of Rosellinia necatrix Prill. Isolates of both types of fungi were tested in dual and cellophane culture. The origin, cultural characteristics, overgrowth sporulation and staining of growth medium were recorded. As a result, 21 Trichoderma bulk isolates were selected and their corresponding monoconidial isolates were evaluated as above. Next eight monoconidial Trichoderma isolates with the largest in vitro antagonism were selected, and they were additionally tested against nine representative isolates of R. necatrix from nine virulence groups. These were established after pathogenicity tests on 57 isolates of R. necatrix from diseased avocado orchards in southern Spain. These monoconidial Trichoderma isolates were considered as potential biological control agents with a high potential for effective control of white root rot of avocado.
Spanish Journal of Agricultural Research
2010
8
1084
1097