Effect of cultivating date on qualitative and quantitative traits of Cuminum cyminum L.

In order to investigate the effect of cultivation date on qualitative and quantitative traits of Cuminum cyminum L. under rainfed conditions, an experiment was conducted in a randomized completely blocks design with five cultivation dates as the treatments and four replications at research station of Sirch. Morphological traits and also seed production were recorded. The results showed that all studied traits of cultivation date had significant differences at level of 1% probability. There were also significant differences among all studied traits of the year except flowering date. No significant differences were recorded for the weight of the seed production in different years. According to the results of the mean comparisons, maximum values of the studied traits were recorded for the cultivation date of early February while maximum seed production and seed yield were obtained in 24th February. Therefore, regarding yield production 24th of February was identified as the best date for cultivation. Significant differences of the traits indicate the high variability of the climate conditions in Sirch Research Station.