Record Details

Validation of farmer's practice of using sodium chloride for controlling foot rot disease of black pepper (Piper nigrum)

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator SUSEELA BHAI, R
ANANDARAJ, M
SRINIVASAN, V
 
Date 2010-09-21T05:37:36Z
2010-09-21T05:37:36Z
2009
 
Identifier Indian Journal of Agricultural Sciences , Vol.79(9) :722-726 (2009)
http://hdl.handle.net/123456789/613
 
Description An innovative field observation by a farmer indicated that common salt (sodium ch1oride) is effective in controlling Phytophthora foot rot of black pepper (Piper nigrum L.) caused by Phytophthora capsid. This is validated through a series of in vitro and in vivo experiments. Initially mycelial growth, sporangial formation and zoospore germination of P. capsid were studied on a range of concentrations from 0.01 M to 3.0 M of NaCI. It was found that mycelial growth is inhibited by 1 M, Sporangial production by 0.75 M and zoospore germination by 0.5 M sodium chloride respectively. But, in vivo studies by challenge inoculation with P. capsid showed that the maximum inhibitory concentration under in vitro (1 M) is insufficient to inhibit P. capsid in the soil. Hence, higher concentrations, viz 2 M to 8 M were tested in soil. The results showed that 3 to 4 M concentrations of sodium ch10ride are the maximum required to destroy the soil inoculum but was found phytotoxic. Modification of the treatment by washing-off the soil amended with salt resulted in nullifying the phytotoxic effect without affecting the total microbial biomass, nutrient status, pH or electrical conductivity of the soil. This method can be used as a pre-planting practice while rejuvenating a diseased garden or while gap-filling or while raising nursery plants in potting mixture.
 
Format 592422 bytes
application/pdf
 
Language en
 
Publisher Indian Counsil of Agricultural Reseach, New Delhi
 
Subject Black pepper
Electrical conductivity
Foot rot
Phytophthora capsici
Sodium chloride
Phytotoxicity
Rejuvenation
 
Title Validation of farmer's practice of using sodium chloride for controlling foot rot disease of black pepper (Piper nigrum)
 
Type Article