Question

comparative study of flowers in Delhi

Answer 1

Explanation:

The present study was undertaken to compare the antifungal activity among flowering plants to know which plant has their antifungal potential. Agar well diffusion method has been used in order to calculate the inhibition length of aqueous and methanol extracts of different flowering plants i.e. Psidium guajava, Polyalthia longifolia, Datura metel, Callistemon lanceolatus & Justicia procumbens against Ryhizoctonia solani, Fusarium oxysporum and Sclerotinia sclerotiorum. Preparation of aqueous and methanol extracts of leaves of these plants was done. The aqueous extract of Psidium guajav has shown maximum antifungal activity against Rhizoctonia solani with an inhibition length of 20 mm and methanol extract of Datura metel has shown maximum antifungal activity against Sclerotinia sclerotiorum with an inhibition length of 30 mm. The methanol extract of Psidium guajava has shown its antifungal activity against Rhizoctonia solani, Fusarium oxysporum and Sclerotinia sclerotiorum with an inhibition length of 22 mm, 9 mm and 3 mm, respectively. No antifungal activity was found to be present against Sclerotinia sclerotiorum in the aqueous extract of Justicia procumbens, where as 16 mm and 10 mm inhibition length was found to be effective against Rhizoctonia solani and Fusarium oxysporum. It can be concluded from above study that the plant Psidium guajava and Datura mete can be utilized as a good source of herbal drugs for various fungal diseases. Future works require the screening of secondary metabolites that are present in these plants.

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