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International Journal of Applied Agricultural & Horticultural Sciences
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Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
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Vol. 3 (2) : March-April 2012 issue
Green Farming Vol. 3 (2) : 223-225 (March-April, 2012)
In vitro screening of aqueous plant extracts against Fusarium solani (M.) S. causing root rot in mulberry
M.S. MANMOHAN1* and GOVINDAIAH2
Department of Life Science, Plant Protection Laboratory, Bangalore University, Bangalore – 560 056 (Karnataka)
Designation :  
1Ph.D. Scholar *(manmohan.mana@gmail.com), 2Professor & Head
Subject : Life Sciences
Paper No. :
Total Pages : 3
Received : 30 December 2011
Revised accepted : 14 March 2012
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Citation :

M.S. MANMOHAN and GOVINDAIAH. 2012. In vitro screening of aqueous plant extracts against Fusarium solani (M.) S. causing root rot in mulberry. Green Farming Vol. 3 (2) : 223-225 ; March-April, 2012

ABSTRACT
Mulberry root rot caused by Fusarium solani is the most dangerous disease due to perennial nature of the crop and the soil borne nature of the pathogen. Ten locally available aqueous plants extracts viz., Amorphopholus companulatus, Azadiricta indica, Calotropis procera, Catharanthus roseus, Eucalyptus globulus, Euphorbia hirta, Gliricidia maculata, Lowsonia inermis, Pongamia pinnata and Tagatus patula were evaluated against F. solani by “spore germination method” and “poison food technique”. All the different concentrations of aqueous plant extracts showed inhibition in spore germination and mycelial growth. Some of them were very effective, while others were moderate and less effective against the pathogen. The aqueous extract of L. inermis has recorded maximum inhibition in spore germination with 96.6% and 82.6% of inhibition in mycelial growth, followed by A. indica with 93.0% inhibition in spore germination and 70.4% of inhibition in mycelial growth. Whereas, extract of P. pinnata showed 82.0% spore inhibition and 64.2% of inhibition in mycelial growth. Followed by C. procera recorded 74.8% and 68.8% spore inhibition and inhibition in mycelial growth respectively.
Key words :
Fusarium solani, mulberry, mycelial growth and inhibition, root rot, plant extracts, spore germination.