Vol. 6, Issue 4 (2018)
In vitro evaluation of cruciferous plant extracts against Rhizoctonia solani causing sheath blight in rice
Author(s): N Kiran Kumar, T Narendrappa and VB Sanath Kumar
Abstract: Sheath blight of rice caused by Rhizoctonia solani has become a major constraint in rice production in India. The efficacy of cruciferous plant extracts were assessed against R. solani in laboratory conditions. Inhibitory effect of few cruciferous plant extracts were tested by poisoned food technique. At 1:1 dilution the highest inhibition of 51.1% was observed in cabbage and the least inhibition of 21.93% over control was observed in case of radish. At 1:100 and 1:1000 dilutions none of the plants extracts were effective against R. solani. At 1:1 dilution only cabbage was found effective. The bio-fumigant property of the same cruciferous plants was tested against R. solani by following sealed Petri plate technique. At 2 days after incubation all the treatments showed inhibitory effect. Mustard completely inhibited the growth of the pathogen whereas cauliflower showed least inhibition with 44.8 mm radial growth of the pathogen. At 4 days after incubation only mustard and radish showed the inhibitory effect where mustard showed 100% inhibition on the growth of the pathogen.
Pages: 637-640 | 466 Views 48 Downloads
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How to cite this article:
N Kiran Kumar, T Narendrappa, VB Sanath Kumar. In vitro evaluation of cruciferous plant extracts against Rhizoctonia solani causing sheath blight in rice. Int J Chem Stud 2018;6(4):637-640.
