Evaluation of soil solar heating for control of damping-off fungi in two forest nurseries in France |
| |
| Authors: | B Le Bihan P Camporota M L Soulas M I Salerno R Perrin |
| |
| Institution: | (1) Institut National de la Recherche Agronomique (INRA), Station de Recherches sur la Flore Pathogène du Sol, BV 1540, 17 rue Sully, F-21034 Dijon, Cedex, France Tel: (80)633057; Fax: (80)633226; email: perrin@dijon.infra.fr, FR;(2) Facultad de Ciencias Agrarias y Forestales, Universidad Nacional de La Plata, Calle 60 y 119, 1900 La Plata, Buenos Aires, Argentina, AR |
| |
| Abstract: | Field experiments were carried out at two different forest nurseries during the summer of 1994 to examine the efficacy of
soil solarization for the control of damping-off. Both soils hosted Pythium spp., Fusarium spp. and Rhizoctonia solani as damping-off agents. Soil samples from solarized, steamed, fumigated and untreated plots were periodically collected and
assayed for soil infectivity. Solarization with a double layer of polyethylene film was as effective as steaming or fumigation
in reducing soil infectivity in the uppermost layer. During July the temperature of covered beds rose as high as 50°C at a
soil depth of 5cm. The method achieved good control of Pythium spp., the main cause of damping-off at both nurseries, whereas Fusarium spp. were more tolerant. The association of Trichoderma spp. with a reduction of soil infectivity at the last sampling date strongly suggested that biocontrol processes were induced
after solarization. Soil solarization provides a suitable method for control of damping-off.
Received: 29 October 1996 |
| |
| Keywords: | Soil solarization Damping-off Soil infectivity Forest nursery Biological control Pythium Fusarium Rhizoctonia solani |
| 本文献已被 SpringerLink 等数据库收录！ |
|
