چكيده لاتين :
The experiments were conducted to study survival and over wintering of Ascochyta rabiei (teleomorph : Didymella rahiei) in different areas of Fars province. Dried infected foliage of chickpea was closed in nylon mesh cloth and placed at different soil depths (0, 10, 20, 30, 40cm) in three geographical locations.
The results indicated that the fungus could be recovered only from residues kept on soil surface. The pathogen could not be recovered from infected residues buried under the soil ( 10, 20,30,40 cm).
To study host range of the pathogen, several field and vegetable crops ( bean, soybean, broadbean, pea, squash, cucumber, melon, sugar beet, cowpea, mungbean, common vetch, lentil, clover, con, rice, sorghum and tobacco) and weeds growing in chickpea fields (Amaranthus retroflexus. Avena sativa, capsella hursa-pastoris, Cardaria draba, Cephalaria syriaca, Chenopodium album,Convolvulus arvensis, Galium trocorne, Gomphrina globsa, Malva sylvisleris, Plantago lanceolata, Polygonum avicular.Portulaca oleracea, Rapistrum rugosum, Sinapsis arvensis, Silene conoidae, Solanum nigrum, Vacaria pyramidata. Vicia sativa), were planted in greenhouse and inoculated with 106 conidia/inl of A. rahiei. The results showed that bean, broadbean, pea, soybean, Solanum nigrum, Concolvulus arvensis and Portulaca oleracea were inFected by A, rahiei and the pathogen was reisolated from infected tissues and confirmed their pathogenicity on susceptible chickpea.
