Vol. 5, Issue 5 (2017)
Efficacy of organic amendments and plant extracts against tomato fruit rot
Author(s): VM Srinivasan and M Daniel Jebaraj
Abstract: The efficacy of organic amendments viz., Farm Yard Manure (FYM), Decomposed coir pith, vermicompost, Neem cake, Ground nut cake, Pungam cake, Castor cake and Sesame cake. were tested against tomato fruit rot pathogens in PKM 1 variety under pot culture technique. Among them Neem cake @ 10 g/Kg of sterilized pot mixture recorded maximum plant growth (57.59 cm) and yield (1.66 Kg/ plant), with an incidence of 18.00 per cent over control. When the neem cake was combined with T.v 3 the efficacy of neem cake was slightly increased which recorded the plant growth 57.70 cm, yield 1.68 Kg/ plant and disease incidence 15 percent over control. The efficacy of Neem cake was further amplified when it was combined with P.f 3 which recorded the maximum plant growth of 58.68 cm, yield 1.71 Kg/plant with the minimum disease incidence of 10 percent over control and considered to be the superior among the bio agents tested. To identify the antimicrobial property of plant products against tomato fruit rot pathogens an experiment was conducted with following plant products which are locally available viz., Allium sativum, Allium cepa, Eucalyptus tereticornis, Prosopis juliflora, Pithecellobium dulse, Azadiractha indica, and Pongamia glabra. The result indicated that the water extract prepared from Allium sativum at 10 per cent concentration recorded the maximum growth inhibition per cent against the fruit rot pathogens viz., A.solani (68.58 mm) C.capcici (69.49 mm) Fusarium solani (69.28 mm) and P. capcici (70.83 mm). Field trial was conducted on PKM 1 variety with the bulb extract of Allium sativum at 10 percent concentration sprayed at 15 days interval. The trial indicated that seven sprayings commencing from 30 DAP was found to be effective against tomato fruit rot pathogens which was recorded the plant growth of 54.00 cm, 1.42 Kg yield /plant and 20 per cent disease incidence over control. The cost benefit ratio in respect of Allium sativum bulb extract was 1:3.5 because of frequent spray and comparatively low yield than other treatments.
Pages: 2218-2221 | 619 Views 9 Downloads
How to cite this article:
VM Srinivasan, M Daniel Jebaraj. Efficacy of organic amendments and plant extracts against tomato fruit rot. Int J Chem Stud 2017;5(5):2218-2221.