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Abstract
- Pathogenicity test revealed that the most virulent fungi causing pre – and post emergence damping – off in faba bean were Rhizoctonia solani, followed by Fusarium oxysporum and Fusarium solani.
- The most pathogenic fungi in lentil were Fusarium oxysporum, Rhizoctonia solani and Fusarium solani.
- In lupine plants, it was found that Rhizoctonia solani, Fusarium oxysporum followed by Fusarium semitectum were the pathogenic fungi. Macrophomina phaseolina and Fusarium moniliforme proved its pathogenic capability to chickpea plant.
- Trichoderma harzianum as a biological agen proved its antagonistic ability against all fungi causing seedling damping – off and root rot of faba bean, lupine and chickpea under laboratory and green house conditions .
- Using of different concentrations of vitavax thiram. Inhibited linear growth of the pathogenic fungi under laboratory conditions.
- Fungicide (Vitavax thiram) as seed dressing protected faba bean, lentil, chickpea and lupine plants from infection by the soil borne fungi.
- Saponin derived from alfalfa roots at different
concentration offered a good protection against the pathogenic fungi isolated from faba bean, lentil and chickpea either under laboratory or greenhouse conditions.
- Host range of the pathogenic fungi revealed that
fungi isolated from lentil (Fusarium solani no.(2), and Rhizoctonia solani), and Macrophomina phaseolina isolated from soybean capable to infect chickpea plants.
- Lentil plants was moderate susceptible to infection by the most pathogenic fungi isolated from faba bean, lupine, and chickpea. And susceptible to Sclerotium rolfsii of soybean.
- In faba bean plants it was found that the highest pathogenic fungi at pre – emergence damping – off phase were Rhizoctonia solani of lentil plant, Sclerotium rolfsii of soybean plants followed by Fusarium solani no.(2) of lentil.
At post – emergence, the highest pathogenic fungi were Rhizoctonia solani of soybean , Rhizoctonia solani of lupine, Macrophomina phaseolina of soybean, and Fusarium solani no.(1) of lentil respectively.
- In lupine plants it was found that all fungal isolates tested had pathogenic capability to infect lupine, Rhizoctonia solani of faba bean and Fusarium solani no. (1) of lentil , followed by Sclerotium rolfsii of soybean were the most virulent pathogenic isolates.