Assessment of yield, growth index and phonological stages of winter safflower (Carthamus tinctorius L.) genotypes

In order to study of agronomic characteristics، yield، CGR and phonological stages of different safflower genotypes، a field study was conducted in the research field of Karaj Seed and Plant Improvement Institute، using randomized complete block design with four replications during the 2007-2008 growing season. Seven genotypes were compared. Results indicated that genotypes had significant differences in all traits. L. R. V. 51. 51 produced the highest seed yield and CGR and thus is suitable and adaptable for planting in Karaj region.