Survey, pathogenicity and management of rice rootknot nematode, meloidogyne graminicola golden and birchfield on rice
Loading...
Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
CCSHAU
Abstract
Survey of rice nurseries in four districts viz; Sirsa, Fatehabad, hisar and Jind districts revealed 80.1%
infestation of rice root-knot nematode. Light textured soil was more prominent for the rice root-knot
nematode M.graminicola.
Studies on the pathogenicity of different type soil i.e clay loam, loam and sandy loam soil revealed that
clay loam soil resulted maximum plant growth and nematode reproduction and multiplication followed
by loam and sandy loam soil, irrespective of the inoculum level. As the inoculum level increased from
1-4 J2/g soil. Plant growth decreased significanty and nematode reproduction and multiplication
increased in all the soil types. Pathogenic level of rice root-knot nematode was found 1J2/g soil in all
soil types.
In host range studies all the varieties of rice, pearl millet, sorghum, weeds and brinjal were susceptible
to different populations of M.graminicola, to varying degree on the basis of galling. However, tomato
proved to be a non-host for all the populations. More galling and reproduction of Fatehabad and Jorhat
populations were reportedon all susceptiblehosts as compared to other three populations.
Studies on management of rice root-knot nematode revealed that maximum plant growth was found in
sterilized soil as compared infested soil, irrespective of organic amendments. Castor cake @ 10g/kg
soil was found to be best in increasing plant growth parameters and decreasing nematode reproduction
which was followed by mustard cake @ 10g/kg soil and castor cake @ 5g/kg soil.
Description
Keywords
Rice, Planting, Biological phenomena, Vegetative propagation, Biological interaction, Eggs, Meloidogyne graminicola, Crops, Biological development, Organic amendments