STABILITY ANALYSIS OF WHEAT THROUGH GENOTYPE BY ENVIRONMENT INTERACTION IN THREE REGIONS OF KHYBER PAKHTUNKHWA, PAKISTAN

Genotype-by-environment (GEI) interaction provides the basic information that helps breeders to select stable and superior genotypes for targeted environments. Climate change also alters recommendations of genotype a specific condition. The field study carried out during cropping seasons 2015–2016 determined performance 16 wheat (13 lines three cultivars) at different locations: University Agriculture, Peshawar (UAP), Nuclear Institute Food (NIFA), Cereal Crops Research (CCRI), Pirsabak-Nowshera, Khyber Pakhtunkhwa, Pakistan. Data on yield contributing parameters (days heading, spike length, spikelets spike-1, grain weight 1000-grain weight, yield) were collected analysed using analysis variance (ANOVA) stability analysis. Mean square values revealed highly significant results all traits under consideration (G) locations (L). Likewise, interactions except spike-1. indicated no similarity. However, overall displayed better environmental conditions (CCRI- Location No: 03). According Eberhart Russell approach, K-87, PR-113, Pak-13, PR-112, NR-449, KT-338 confirmed tested as their regression coefficient (bi) value exhibited close unity. Correlations with considered positive days heading.