Vol. 10, Issue 9 (2021)

Author(s):
RS Mishra and OP Rao

Abstract:
Ashwagandha (Withania somnifera) roots are major source of alkaloids including tropine, pseudotropine and somniferine. Deterioration of the biochemical and secondary metabolites of Ashwagandha by the Alternaria leaf spot disease are very scanty. Therefore, study has been done for management of leaf spot disease with fungicides and organics and their effects on bio-molecules of Ashwagandha roots. The total phenol and flavonoids content increased with decreasing disease intensity. The maximum increase of total phenol was recorded 17.12mg/g in ridomil MZ, and flavonoids in Kovach 16.90 mg/g with disease intensity 19.20%. Withanolides content was recorded maximum in ridomil (3.73%) followed by panchgavya (3.66%) and cow urine (3.39%).