SCREENING OF RHIZOCTONIA BATATICOLA ISOLATES AGAINST SOYBEAN CULTIVARS FOR SOURCE OF RESISTANCE
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 2
Abstract
Twenty two isolates were screened against soybean cultivar Monnetta. The mortality percent of different isolates ranged between 32-96%. Out of 22 isolates, the maximum mortality (96%) was observed in isolated I2 (Khamariya) and (95%) in isolated I10 (Seoni). These isolates were identified as highly virulent and again screened for these reactions on 77 soybean entries. Out of 77 entries tested. None of the entries were found resistant and moderately resistant for I2. Only two entries viz, JS 97-52, JS 93-05 reacted as moderately susceptible under disease grade 5, ten entries viz, NSO 383, RKS 52, Himso 1676, JS 20-18, MACS 1188, JS 209, NRC 76, RKS 39, JS 335 and JS 95-60 as susceptible (Grade 7) remaining 65 entries were found highly susceptible as under disease grade 9 against isolates I2. Similarly, none of the entries were found resistant and moderately resistant for I10. Two entries namely JS 97-52 and JS 93-05 were exhibited moderately susceptible reaction while nine soybean cultivars viz, KDS 321, NSO 383, RKS 52, Himso 1676, JS 20-18, JS 20 9, RKS 45, JS 335 and JS 95-60 showed susceptible reaction as disease grade 7. Remaining 66 entries were exhibited highly susceptible reaction against I10 isolates of R. bataticola.
Authors and Affiliations
D. K. PANCHESHWAR
Keywords
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