Ibrahim,, G., Rasmy, M., Saleh, M., EI-Saedy, M. (2002). EFFECT OF CULTURE FILTRATES OF CERTAIN Fusarium culmorum ISOLATES ON EGG HATCHING OF Me/oidogyne incognita.'. Journal of Plant Production, 27(8), 5295-5301. doi: 10.21608/jpp.2002.256238
G. H. Ibrahim,; M. R. Rasmy; M. M. Saleh; M. A. M. EI-Saedy. "EFFECT OF CULTURE FILTRATES OF CERTAIN Fusarium culmorum ISOLATES ON EGG HATCHING OF Me/oidogyne incognita.'". Journal of Plant Production, 27, 8, 2002, 5295-5301. doi: 10.21608/jpp.2002.256238
Ibrahim,, G., Rasmy, M., Saleh, M., EI-Saedy, M. (2002). 'EFFECT OF CULTURE FILTRATES OF CERTAIN Fusarium culmorum ISOLATES ON EGG HATCHING OF Me/oidogyne incognita.'', Journal of Plant Production, 27(8), pp. 5295-5301. doi: 10.21608/jpp.2002.256238
Ibrahim,, G., Rasmy, M., Saleh, M., EI-Saedy, M. EFFECT OF CULTURE FILTRATES OF CERTAIN Fusarium culmorum ISOLATES ON EGG HATCHING OF Me/oidogyne incognita.'. Journal of Plant Production, 2002; 27(8): 5295-5301. doi: 10.21608/jpp.2002.256238
EFFECT OF CULTURE FILTRATES OF CERTAIN Fusarium culmorum ISOLATES ON EGG HATCHING OF Me/oidogyne incognita.'
1Plant Pathology Research Institute, Agricultural, Research Center, Giza 12619
2Dept. of Plant Pathology, Faculty of Agriculture, EI·Shatby, Alexandria University
Abstract
The role of culture filtrate of five Egyptian pathogenic isolates of F. culmorum isolated from crown and root rot disease of wheat plant were evaluated on egg hatching of Me/oidogyne incognita. Result showed that all culture filtrates reduced number of hatched juveniles and inhibition percentage ranged from 93.5 to 97.7 % .The highest decrease in number of hatched juveniles (97.7%) was obtained at 100 % concentration of culture filtrates of aggressive isolate, and the lowest decrease (86.3%) was found at 10 % concentration of culture filtrate in the weak isolate, All concentrations of .stanoard zeralenone toxin, 300,200, 100,50, and10 pmm., gave Significant, reduction in hatched juveniles compared with control and no significant difference between concentrations ranged from 300 -50 ppm .. in the percentaqe of alive juveniles that it was zero, Three toxins were isolated from F. culmorum isolates and identified as zearalenone. deoxynivalenol and unknown toxin. The effect of these toxins 'were studied on egg hatching and the result obtained showed that zearalenone and deoxynivalenol toxins gave tlie highest decrease, but the unknown toxin gave the lowest. No significant 'difference between zearalenone and deoxynivalenol toxins in
the percentage of alive juveniles that it was zero,
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