Paper Information

Journal:   IRANIAN JOURNAL OF PLANT PATHOLOGY   December 2003 , Volume 39 , Number 3-4; Page(s) 175 To 188.
 
Paper: 

REACTION OF COMMERCIAL WHEAT CULTIVARS TO ISOLATES OF SEPTORIA TRITICI THE CAUSAL AGENT OF SEPTORIA LEAF BLOTCH UNDER GREENHOUSE AND GROWTH CHAMBER CONDITIONS

 
 
Author(s):  HAGHDEL M., BANIHASHEMI Z.A.D.*
 
* Department of Plant Protection , College of Agirculture, Shiraz I University, Shiraz, IRAN
 
Abstract: 

Septoria iritici (teleomorph: Mycophaerella gram Nicola) the cause of Septoria leaf blotch of wheat is a major wheat disease in mars and other provinces in Iran causing economic loss periodically. To evaluate the reaction of wheat cultivars to the pathogen, ten isolates of S. tritici collected from different whet growing areas in Fan province were used. Wheat seedlings and detached leaves of different wheat cultivars were inoculated with conidial suspenision of S. tritici respectively in greenhouse and Petri plates containing water agar amended with benzimidazole and incubated at 20° C in growth chamber. The results of host pathogen interaction in both conditions showed that there was significant differences among wheat cultivars in respect to isolates. On the other hand, the isolates were in the same statistical group but the wheat cultivars divided into 6 and 7 categories for wheat seedlings and detached leaves respectively. Under both conditions, it was found that, wheat cultivars Darab2 and Falat had highest and cultivar Cross Azadi (Marvdasht) the lowest percentage of pycnidial coverage by S. tritci isolates.

 
Keyword(s): SEPTORIA LEAF BLOTCH, WHEAT CULTIVARS, FARS, MYOSPHAERELLA GRAMINICOLA
 
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