Vol. 11, Issue 9 (2022)

Author(s):
RR Bhanwar, Nitesh Mehar and Prachi Singh

Abstract:
Different organic and inorganic soil amendments viz., Farmyard manure @15 t/ha, vermicompost @10 t/ha, poultry manure @6 t/ha, lime @0.5 t/ha, bleaching powder @0.015 t/ha and mustard cake @1 t/ha were evaluated to know their efficacy against percent plant mortality, population of R. solanacearum and soil pH. The data revealed that lowest percent plant mortality was observed in the treatment of bleaching powder @ 0.015 t/ha with 8% and 12% at 30 and 60 DAT, respectively with lowest population 7.6 and 23.2 cfu of R. solanacearum at 30 and 60 DAT, respectively. While the highest percent plant mortality was observed in control with 32% and 60% at 30 and 60 DAT, respectively with highest population 32.2 and 53.00 cfu of R. solanacearum at 30 and 60 DAT, respectively. Soil pH level was also significantly increased in the application of bleaching powder by 6.03 over the lowest pH was recorded in control with 5.65 pH at 30 DAT. While at 60 DAT, the highest pH was recorded in lime @ 0.5 t/ha with 6.2 over the lowest pH was recorded in control with 5.79. The coefficient of correlation were assessed between percent plant mortality, population of R. solanacearum and pH and found that the percent plant mortality and population of R. solanacearum were negatively correlated with pH that indicated increase in pH leads to decrease percent plant mortality and population of R. solanacearum.