عنوان مقاله [English]
In order to investigate the effects of water quantity on grain yield and water productivity of bread wheat genotypes, a field experiment was conducted in agricultural research center in Miandoab, located in West Azerbayjan during 1386-87. Different water level includes I1, I2, I3 and I4 corresponding with 70, 100, 130 and 160 mm evaporation from class A pan, was applied on ten genotypes of bread wheat includes: Zarrin, Shahriyar, Alvand, Sardari, C-80-4, C-81-10, C-81-4, C-83-3, C-83-8 and C-84-9. Optimal yield genotype was Zarrin and gained in I1 irrigation level with 7159.7 Kgha-1. The average water productivity of ten genotypes calculated for I1, I2, I3 and I4 about 0.98, 1.38, 1.36 and 1.29 Kgm-3. The maximum water productivity gained 1.79 Kgm-3 for C-84-9 genotype in I4 irrigation level. Based on results, under net benefit objective function the Zarrin genotype in I1 level and under net water productivity objective function the C-83-8 and C-84-9 genotypes in I4 level were purposed.