Indian Journal of Crop Science

  • Year: 2008
  • Volume: 3
  • Issue: 1

Stability in elite local rice (Oryza sativa L.) genotypes under high altitude environments of Kashmir valley

  • Author:
  • G.A. Parray, Asif B. Shikari, Manzoor A. Ganai, Najib A. Sofi
  • Total Page Count: 4
  • DOI:
  • Page Number: 59 to 62

Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Rice Research and Regional Station, Khudwani, 192 102, Anantnag J&K, India.

Abstract

Stability performance was estimated for ten rice cultivars across five random environments in the valley. Analysis of variance revealed presence of significant genetic variability for all traits studied. G × E interaction was significant for head rice recovery. Mean squares due to environment plus cultivars × environments was significant for plant height, productive tillers m−2, grains panicle−1 and grain yield plot−1 Stability analysis for grain yield plot−1 revealed that the mean square deviation from regression was significant and the prediction of stability of grain yield across environments would be precise and reliable. Linear regression was also non-significant for all the cultivars except Poot Brear-II indicating that these cultivars were having average stability and were poorly adapted to these environments.

Keywords

Stability, temperate environments, rice