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The physiological parameters like PBH, SBH, PH, PAPP and TDM were increased with the advancement of plant age while LWR, CGR and RGR decreased with the increase of plant age. The plants under irrigated conditions produced significantly better performances in all the characters tested than those of the rainfed plants except LWR, CGR and RGR. Most of the yield contributing characters were influenced by irrigation applied at two stages of growth. Primary branch height and relative growth rate were the highest as influenced by irrigation applied at one stage of growth. Some growth attributes like leaf weight ratio and crop growth rate were the highest under rainfed conditions. Correlation and path coefficient analysis revealed that plant area per plant showed the highest positive direct contribution on grain yield and it was followed by pod number per plant and seed number per plant. Stability parameters indicated that Barimasur 6 showed the highest grand mean, regression value nearly one (bi= 1.00) and stability nearly zero at most of the characters. Out of the six genotypes of lentil, Barimasur 6 gave very good grain yield under irrigated and rainfed conditions.
