Evaluation of different concentration of plant extracts as seed treatment to manage seed mycoflora of okra

Abstract

Different concentration of four plant extracts viz. neem, garlic, Cassia tora, and ginger extract (10%, 20%, 30% and 40%) were used for testing the efficacy of plant extract against seed mycoflora of okra. In case of treatment with neem extract germination was recorded highest 81.40 % followed by 75.70 %, 62.80% and lowest was 49.28 % in the concentration of 40%, 30%, 20% and 10 % respectively, The seed treated with different plant extract, neem extract was recorded with minimum (29.61 %) frequency of mycoflora followed by Cassia tora extract (32.08 %), ginger extract (32.28 %) and maximum frequency was found in garlic extract (33.53 %). On an average among all the plant extract frequency of mycoflora was highest of Fusarium sp. (15.69 %) followed by Aspergillus flavus (13.77 %), Alternaria sp. (2.57 %), Sterile mycelium (0.89 %), Chaetomium sp. (0.76 %), Curvularia sp. (0.53 %), Nigrospora sp. (0.28 %) and lowest was Rhizopus sp. (0.08%). Memnoniella sp. was not found in all plant extracts treated seed.