נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Evaluation of soil fumigants on soilborne fungal pathogens in a controlled-environment system and in soil
Year:
1999
Source of publication :
Crop Protection
Authors :
Eshel, Dani
;
.
Gamliel, Abraham
;
.
Grinstein, Avi
;
.
Volume :
18
Co-Authors:
Eshel, D., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel, Dept. Plant Pathol. and Microbiol., Hebrew Univ. Jerusalem, Fac. A., Rehovot, Israel
Gamliel, A., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel
Katan, J., Dept. Plant Pathol. and Microbiol., Hebrew Univ. Jerusalem, Fac. A., Rehovot, Israel
Grinstein, A., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel
Facilitators :
From page:
437
To page:
443
(
Total pages:
7
)
Abstract:
A controlled-environment system was developed for determining the effects on fungal pathogens of fumigants such as methyl bromide (MB) for various combinations of doses (C) and exposure time (T). In this system, sclerotia of Sclerotium rolfsii, added to a sandy soil, were most sensitive to MB when soil moisture was 20% of its water-holding capacity. Extension of the exposure time (T) to MB enabled a reduction in the dose needed to kill 50% (CT50) of S. rolfsii sclerotia or macroconidia of Fusarium oxysporum f. sp. basilici. However, killing of S. rolfsii sclerotia was more effective at high doses of MB for short exposures (4-48 h) than at a low dose for longer periods (48-96 h) with the same C x T value. Killing of macroconidia of F. oxysporum f. sp. basilici at high concentrations and short exposures was similar to that at longer exposure to low concentrations, with the same C x T values. Sclerotium rolfsii sclerotia were the least sensitive to MB, relative to chlamydospores of F. oxysporum f. sp. radicis-lycopersici and F. oxysporum f. sp. basilici macroconidia and chlamydospores, the latter being the most sensitive. In field plots, the incidence of propagule mortality was correlated with C x T values.
Note:
Related Files :
chemical control
Controlled-environment system
C x T
fumigant
fungal disease
Fusarium oxysporum
methyl bromide
Sclerotium rolfsii
Show More
Related Content
More details
DOI :
10.1016/S0261-2194(99)00042-3
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
28324
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:38
Scientific Publication
Evaluation of soil fumigants on soilborne fungal pathogens in a controlled-environment system and in soil
18
Eshel, D., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel, Dept. Plant Pathol. and Microbiol., Hebrew Univ. Jerusalem, Fac. A., Rehovot, Israel
Gamliel, A., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel
Katan, J., Dept. Plant Pathol. and Microbiol., Hebrew Univ. Jerusalem, Fac. A., Rehovot, Israel
Grinstein, A., Lab. for Pest Management Application, Inst. Agric. Eng., ARO Volcani C., Bet Dagan, Israel
Evaluation of soil fumigants on soilborne fungal pathogens in a controlled-environment system and in soil
A controlled-environment system was developed for determining the effects on fungal pathogens of fumigants such as methyl bromide (MB) for various combinations of doses (C) and exposure time (T). In this system, sclerotia of Sclerotium rolfsii, added to a sandy soil, were most sensitive to MB when soil moisture was 20% of its water-holding capacity. Extension of the exposure time (T) to MB enabled a reduction in the dose needed to kill 50% (CT50) of S. rolfsii sclerotia or macroconidia of Fusarium oxysporum f. sp. basilici. However, killing of S. rolfsii sclerotia was more effective at high doses of MB for short exposures (4-48 h) than at a low dose for longer periods (48-96 h) with the same C x T value. Killing of macroconidia of F. oxysporum f. sp. basilici at high concentrations and short exposures was similar to that at longer exposure to low concentrations, with the same C x T values. Sclerotium rolfsii sclerotia were the least sensitive to MB, relative to chlamydospores of F. oxysporum f. sp. radicis-lycopersici and F. oxysporum f. sp. basilici macroconidia and chlamydospores, the latter being the most sensitive. In field plots, the incidence of propagule mortality was correlated with C x T values.
Scientific Publication
You may also be interested in