Indian Journal of Plant Protection
  • Year: 2002
  • Volume: 30
  • Issue: 2

Evaluation of Greengram Genotypes (Vigna radiata L.Wilczek) for Resistance to Thrips Palmi Karny and Peanut Bud Necrosis Virus*

  • Author:
  • M. Sreekanth, M. Sreeramulu, R D. V. J. Prasada Rao1, B. Sarath Babu1, T. Ramesh Babu
  • Total Page Count: 6
  • Page Number: 109 to 114

1National Bureau of Plant Genetic Resources-Regional Station, Rajendranagar, Hyderabad-500 030, Andhra Pradesh, India.

Department of Entomology, Acharya NG Ranga Agricultural University, Rajendranagar, Hyderabad-500 030, Andhra Pradesh, India.

* Part of the Ph. D thesis submitted by the first author to the Acharya N. G. Ranga Agricultural University, Rajendranagar, Hyderabad- 500 030

Abstract

Thirty-eight greengram genotypes were screened for resistance to Thrips palmi Kafny and peanut bud necrosis virus (PBNV) under field conditions at National Bureau of Plant Genetic Resources, Regional Station, Rajendranagar, Hyderabad during Rabi 2000 and Kharif 2001. Four genotypes, viz., LGG 460, 480, 491 and 582 consistently showed resistance to T. palmi in both Rabi 2000 (2.0 - 2.3 thrips 5 t−1) and Kharif 2001 (4.7 - 5.0 thrips 5 t−1). In addition, the same genotypes also recorded resistance and moderate resistance to PBNV, respectively in Rabi (7.1 - 10 0%) and Kharif (12.5 - 15.0%).

Keywords

Evaluation, genotypes, greengram, Vigna radiata, Thrips palmi, peanut bud necrosis virus