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Coconut water amended coirpith - a conducive medium for mass multiplication of biocontrol agent Trichoderma spp.

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator KUMAR, A
ANANDARAJ, M
SRINIVASAN, V
VEENA, S S
SARMA, Y R
 
Date 2002-07-21T12:42:49Z
2002-07-21T12:42:49Z
2000-09
 
Identifier Centennial Conference on Spices and Aromatic Plants, 20-23 :267-273, September 2000
http://hdl.handle.net/123456789/181
 
Description Exploitation and recycling of naturally available agricultural waste is an important component of sustainable disease management. In the present work we have used the commonly available agricultural waste media such as coirpith and coconut water as growth and carrier medium for multiplication of fungal biocontrol agent Trichoderma spp. The raw coirpith was decomposed for two months using Pleurotus platypus and urea. In order to study the proliferation and population dynamics of Trichoderma, three strains of Trichoderma viz., T.viride, T.viride albino mutant and T.harzianum P26 were used. In partly decomposed and sterilized coconut coirpith, the population of Trichoderma increased dramatically from 10 colony forming units (cfu) to 10 cfu per gram of coirpith in 10 days. However, the population decreased in un-sterilized coconut coirpith and got stabilized at 10 cfu per gram of coirpith after 50 days of growth. When the coirpith was enriched with coconut water, the multiplication of Trichoderma was observed in both sterilized and unsterilized medium. The increase in Trichoderma population was from 10 cfu per gram to 10 cfu per gram in five days in sterilized coirpith amended with coconut water. Experiments were also performed to know the effect of coir extract (aqueous extract) on multiplication of Trichociernta. There was no significant change in the population of Trichoderma in extract / liquid coir extract throughout the incubation period. Exponential multiplication in coirpith medium could be due to versatile nature of Trichoderma for carbon nutrient and also due to major and minor nutrients available in coir compost. From the results it is clear that the coconut water + coirpith medium could be exploited for mass multiplication of Trichoderma for management of soil borne diseases of plantation crops.
 
Format 284914 bytes
application/pdf
 
Subject Coconut water
Coirpith
Mutants
Trichoderma
 
Title Coconut water amended coirpith - a conducive medium for mass multiplication of biocontrol agent Trichoderma spp.
 
Type Presentation