Research Article Open Access

Antisporulant Activity of Watery Extracts of Plants against Sclerospora graminicola Causing Downy Mildew Disease of Pearl Millet

S.A. Deepak1, G. Oros2, S. G. Sathyanarayana1, H. Shekar Shetty1 and S. Sashikanth3
  • 1 Department of Studies in Applied Botany, University of Mysore, Manasagangotri, Mysore 570 006, Karnataka, India
  • 2 2 Plant Protection Institute Hungarian Academy of Sciences, 1525 Budapest, Pf. 102, Hungary
  • 3 Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore, Karnataka, India

Abstract

Watery extracts of forty plant species commonly growing in across India have been screened for antisporulant activity against Sclerospora graminicola (Sacc.) Schroet., the causative agent of pearl millet downy mildew. The collection represented 38 genera of 30 families. The extracts of thirteen species did not show any effect, whereas the activity of extracts of Allium sativum, Clematis gouriana, Evolvulus alsinoides, Mimusops elengi, Parthenium hysterophorus, Piper nigrum and Tagetes erecta were commensurable to that of marketed botanical fungicides and Mikal 70 wp. The crude extracts of 12 species (Agave americana, Aloe vera, Artemisia parviflora, Citrus limon, Citrus sinensis, Eucalyptus globosus, Euphorbia hirta, Leucas aspera, Murraya koenigi, Ocimum sanctum, Santalum album and Zingiber offinale) completely inhibited the zoosprorangium formation while in the case of remaining 8 plants the crude extracts reduced only partially the sporulation. The antisporulant activity of commercialised Azadirachta preparation (Nutri-Neem) was more pronounced than that of Reynutria based one (Milsana) and Sabadilla (veratrin), however, these botanical preparations held off synthetic fungicides and the most active watery extracts.

American Journal of Agricultural and Biological Sciences
Volume 2 No. 1, 2007, 36-42

DOI: https://doi.org/10.3844/ajabssp.2007.36.42

Submitted On: 23 March 2007 Published On: 31 March 2007

How to Cite: Deepak, S., Oros, G., Sathyanarayana, S. G., Shetty, H. S. & Sashikanth, S. (2007). Antisporulant Activity of Watery Extracts of Plants against Sclerospora graminicola Causing Downy Mildew Disease of Pearl Millet. American Journal of Agricultural and Biological Sciences, 2(1), 36-42. https://doi.org/10.3844/ajabssp.2007.36.42

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Keywords

  • Pearl millet
  • downy mildew
  • plant extracts
  • antisporulant activity