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In vitro evaluation of selected Basmati and non-Basmati Rice varieties against Meloidogyne graminicola Hatzade Bhupal, Rao Uma* Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi-110 012, India *umarao@iari.res.in
Online published on 9 August, 2019. Abstract Rice is the staple food for more than half the world's population and India contributes about 25% of global rice production. Rice root knot nematode, Meloidogyne graminicola is one of key nematode pests among various biotic factors in most of the rice growing areas of India, leading to significant yield loss. The performance of some of the popular basmati and non-basmati rice varieties against M. graminicola is not well studied. Therefore, the present study was undertaken to evaluate nine basmati and three non-basmati rice varieties against M. graminicola under a well established in vitro assay using Pluronic F 127. Among the nine basmati rice varieties, Pusa 1460 was found to be resistant while others were susceptible. The resistant variety had less number of galls, endoparasites, egg masses, average eggs/egg mass and multiplication factor in comparison to the susceptible varieties. All the three non-basmati varieties were susceptible. The identified resistant variety can be used in resistance breeding programs since plant resistance is the most convenient, environmentally safe and economical approach of nematode management. Top Keywords Meloidogyne graminicola, Oryza sativa, Resistant, Susceptible. Top | |
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