Receiving high and stable grain yield at different environments is one of the aims of cereal breeding programs. In order to compare results of research under on-farm conditions, it is necessary carrying out research project to receive high grain yield and superior characteristics lines. In this study, C-89-6 (Fdo 2062), C-89-7 (Zarin*2/Gaspard) and C-89-15 (Fdo 4085) promising lines and Mihan as control cultivar sowed under irrigated and on-farm conditions in Urmia and Oshnavieh cities. Planted area for each genotype at per location was 5000 m2. Land preparation and sowing accomplished according common region and on-farm conditions. Seed rate based on 1000-kernel weight and manure consumption were 450 seed/m2 and according recommendation of soil experiment, respectively. Results of combined analyses of variance showed that for except of spike length and 1000 kernel weight were significant differences for all traits at two locations. Also, among genotypes, for except of grain yield and harvest index other traits were significant differences. The highest grain yield and total dry matter related to the Oshnavieh city with 1052 and 1990g/m2, respectively. Standard deviation and standard error of genotypes in this city was more than Urmia. With harvesting total planted area and measuring grain yield, C-89-15 line in both cities of Urmia and Oshnavieh produced more grain yield than other genotypes 7.5 and 8.0 t/h, respectively. Higher yield for this line is due to long spike length, the number of spikelets at per spike, number of kernels at per spike and number of spike at per square meter. One thousand spikes provided for producing breeder seed.
Ali Reza Eivazi, Mohammad Rezaei, Rogyhe Abdolazimazdeh, Shahram Shiralizadeh