The effect of irrigation in different development periods on yield and agricultural characteristics of some winter rape cultivars

In this study, the effect of irrigation in some development periods (control, stem extension, flowering, carob filling, stem extension-flowering, stem extension-carob filling, flowering-carob filling, stem extension- flowering- carob filling) on different rape varieties (Samibey and Suzer) at yield and agricultural characteristics in 2017-2018 growing season in Diyarbakır ecological conditions were investigated. The experiment was carried out according to the split plots experiment design, variance analyzes were performed and the averages were subjected to Duncan multiple comparison test. In this study; plant height ranged from 149 to 201.7 cm, number of branches per plant from 6 to 9.6 pcs / plant, number of carobs from164.5 to 363.2 pcs / plant, number of seeds in carob from 20.6 to 31.6 pcs / carob, thousand grain weight from 34.7 to 43.1 g, seed yield from 84.8 to 235 kg / da, the oil content from 42.4% to 51.3%, oil yield from 35.5 to 119.8 kg / da, protein content from 29.2% to 36.3%. As a result of the analysis of variance, plant height and number of branches were obtained from the Süzer varieties with the highest statistical values, while the varieties did not have a statistically significant effect in terms of other characteristics. There was no statistically significant effect of different irrigation times on oil content.