Indian Journal of Genetics and Plant Breeding (The)

SCOPUSWeb of Science
  • Year: 1993
  • Volume: 53
  • Issue: 2

Inheritance of resistance to alternaria leaf blight in pigeonpea (Cajanus cajan (L.) Millsp.)

  • Author:
  • C. B. Ojha, S. K. Choudhary, N. B. Singh
  • Total Page Count: 3
  • DOI:
  • Page Number: 115 to 117

Department of Plant Breeding, Rajendra Agricultural University Bihar, Tirhut College of Agriculture, Dholi, Muzaffarpur 843121.

Abstract

The inheritance of resistance to leaf blight caused by Alternaria tenuissima was studied in pigeonpea (Cajanus cajan). The F1, F2, BC1 and BC2 generations involving seven resistant and a susceptible parents were evaluated. The dominance of susceptibility in F1 generation and segregation into 3S:1R ratio in F2 indicated that resistance is governed by single recessive gene in each of the varieties used in this study. The monogenic nature of disease resistance was confirmed by back-eross analysis.

Keywords

Pigeonpea, Alternaria blight, inheritance, genetics