Vol. 12, Issue 5 (2023)

Author(s):
Tusi Chakma, PH Sobita Devi, Bireswar Sinha, Kota Chakrapani, N Gopi Mohan Singh, TH Renuka Devi and KH Ibohal Singh

Abstract:
The efficacy of ten plant extracts and a check fungicide (Mancozeb) against Alternaria solani were evaluated at three different concentrations, in vitro by poisoned food technique to exploit their antifungal properties. Among the plant extract tested, the highest inhibition of 68.24%, 73.72% and 79.21% was shown by Garlic extract at 1%, 2% and 3% concentration followed by Adulsa, Turmeric, Ginger, Neem, Tulsi, Wild sedge, Marigold, Mentha, and Onion. Mancozeb at 0.1%, 0.2% and 0.3% concentrations showed 72.55%, 80.00% and 87.06% inhibition over control. Garlic (Allium sativum L.) was found most effective which exhibited maximum mycelial growth inhibition and minimum radial growth at higher concentration. Whereas, Onion extracts (Allium cepa L.) showed least mycelial growth inhibition (17.65%) and maximum radial growth (7.00 cm) at 20% concentration among the tested plant extracts.