SOME MORPHOLOGICAL CHARACTERS OF SCLEROTINIA SCLEROTIORUM  (LIB.) DEBARY

H. Samir, S.; A. Naemah, R.

	SOME MORPHOLOGICAL CHARACTERS OF SCLEROTINIA SCLEROTIORUM (LIB.) DEBARY
The Iraqi Journal of Agricultural Science
Article 1, Volume 44, Issue 5, 2013, Pages 629-635
Authors
S. H. Samir; R. A. Naemah
Abstract
The aim of this research was to study some phenotypic characters for isolates of Sclerotinia sclerotiorum under laboratory conditions . The study included four isolates SSR1, SSR2, SSR3, and SSR4 . Isolates showed difference in formation of sclerotia after 6 -7 days of inoculation in sclerotia size , irregular shap of sclerotia hardness and seceretion of colorless liquid during formation of sclerotia . Results indicated that superiority of isolate SSR1 which was isolated from eggplant in plastic house at College of Agriculture in fungal growth 8.1 cm after 3 days of inoculation . There was no significant difference between isolate SSR1 and SSR2 and SSR3 fungal growth 7.4 and 7.3 cm respectively. However there was asignificant difference between SSR1 and SSR4 fungal growth 6.5 cm . Also the isolate SSR1 was superior in number and size of sclerotia at rate 34.33 sclerotia /petridish and 0.55g./petridish respectively. However number of sclerotia for isolates SSR2, SSR3, SSR4 were 15.67, 25.33 and 11.67 sclerotia /petridish respectively. While weight of sclerotia were 0.288, 0.412, 0.234 g./sclerotia respectively. The isolate SSR3 which was isolated from eggplant in greenhouse in Al-Aeshia district , Abu-Ghraib was superior in formation 15 ascocarp/dish compared to isolates SSR1 , SSR2, SSR4 in formation 4.67, 5.07 and 1 ascocarp/dish . Also results of laboratory revealed that isolate SSR3 produced heighest number of ascocarp 13/dish in PDA compared to sterilized distilled water , sterilized wet cotton and peatmoss were number of ascocarps 10, 8.67 and 0.0 /dish respectively.
Keywords
Sclerotia; Ascocarps; Eggplants; PDA

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