The Indian Journal of Genetics and Plant Breeding

SCOPUSWeb of Science
  • Year: 1990
  • Volume: 50
  • Issue: 3

Study of gene effects for Karnal bunt (Neovossia indica Mitra) resistance in breadwheat (Triticum aestivum L.)

  • Author:
  • K. S. Gill, G. S. Nanda, Gurdev Singh, Karam Chand, S. S. Aujla, Indu Sharma
  • Total Page Count: 5
  • DOI:
  • Page Number: 205 to 209

Plant Breeding Department, Punjab Agricultural University, Ludhiana 141004.

Abstract

The gene effects for Karnal bunt were studied by deploying the parental, F1, F2, BC1 and BC2 generations in four crosses: HD 29 X HD 2009, HD 29 X WL 711, WL 6975 X HD 2009 and WL 6975 X WL 711 of common wheat. Varieties HD 29 and WL 6975 were resistant and WL 711 and HD-2009 susceptible. The resistance was dominant over susceptibility. The A, B, C scaling tests and weighted least square analysis of generation means indicated the presence of nonallelic interactions. The components (d), (h) and (j) were significant in all the aosses, whereas (i) was significant in cross WL 6975 X WL 711, and (l) in HD 29 X HD 2009 and HD 29 X WL 711. The correlation coefficients between (h) and (l) depicted duplicate type of gene action. The results are discussed.

Keywords

Gene effects, Karnal bunt, breadwheat