22Jul 2018

IN VITRO EVALUATION OF ANTI FUNGAL ACTIVITY OF SOME MEDICINAL PLANTS AGAINST HELMINTHOSPORIUM ORYZAE, THE INCITANT OF BROWN SPOT DISEASE OF PADDY.

  • Faculty of Agriculture, Annamalai University, Annamalainagar, Tamil Nadu, India.
  • Department of Botany, Fatima Mata National College, Kollam-2, Kerala, India.
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Brown spot of rice incited by Helminthosporium oryzae is a serious disease and cause considerable yield loss. Several fungicides have been reported to control the disease effectively. With the increase in awareness on the toxic hazards of chemicals to crops, consumers and environment, the importance of indigenous natural products in plant disease control has been recognized. In the present investigation, four medicinally important plant species were screened for fungitoxicity against H. oryzae. Among the plant species assayed, crude extracts of garlic bulb (20%), Lawsonia inermis(80%) and Vinca rosea (100%) lesves recorded complete inhibition of mycelial growth and are on par with Hinosan (0.1%) and neem leaf extract recorded 85% reductin in mycelial growth over control at 80 % concentration . Since garlic was found to be more effective than other plant extracts, a detailed in vitro screening study was conducted to find out the effective concentration.

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[Resmy Jayaraj, A. S. Rubin Jose and V. Kuruchev. (2018); IN VITRO EVALUATION OF ANTI FUNGAL ACTIVITY OF SOME MEDICINAL PLANTS AGAINST HELMINTHOSPORIUM ORYZAE, THE INCITANT OF BROWN SPOT DISEASE OF PADDY. Int. J. of Adv. Res. 6 (Jul). 743-746] (ISSN 2320-5407). www.journalijar.com

Dr. A. S. Rubin Jose
Assistant professor, Department of Botany, FMN College, Kollam, Kerala, India

DOI:

Article DOI: 10.21474/IJAR01/7420      
DOI URL: https://dx.doi.org/10.21474/IJAR01/7420

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