تأثير حامض الساليسيلك و CPPU في النمو و حاصل الكورمات والكريمات لثلاثة أصناف من نبات الزعفران Crocus sativus L.

الملخص EN

The research was conducted in Lath house of department of Horticulture and landscape Design\ College of Agriculture \university of kirkuk \Shurao, for the period from October / 2018 to May / 2019 to investigated the effect of soaking in Salicylic acid at three concentrations (0 ,200, 300) mg.L -1 for 24 hours before planting and spray with Two concentration of CPPU (0, 15) mg.L -1 on growth , flowering , and Yield of corms and cormlets of three Saffron cultivars: (Cartwrightianus "Albus", Bunch and Pushal) , the study was laid out in factorial (R.C.B.D.

).

According to the SAS system (The Statistical Analysis system), by Duncan's test, at P> 0.05 level .

The results can be summarized as follows: The effect of Soaking of Salicylic acid at 200 mg.L -1 resulted in an increase the number of shoots (5.50 bud.plant-1) and highest total carbohydrate content in leaves (19.40%) and highest number of Cormels (3.77 cormel.Plants -1) and highest fresh weight of corms ( 6.17 g) with concentration 15 mg.L-1 CPPU improved Vegetative and lead to significantly increased the Corms yield , number of shoots (5.07 bud.plant-1) , highest total chlorophyll content in leaves (1.80 CCI), and increased total carbohydrate content in leaves (17.28%) , While the yield gave highest number of corms (1.70 corm.Plants -1), gave lowest number of Cormels (2.96 cormel.Plants -1), highest the fresh weight of corms (6.62 g), and highest the diameter of the corms (2.19 cm) .

The three cultivars were significantly different in their growth , corms and cormels , Bunch cultivar Superiority in most characteristics , and highest fresh weight of corms ( 7.78 g), While the cultivar (Pushal) led to gave the highest total carbohydrate content in leaves (17.49%) After the cultivar (Bunch), The (Cartwrightianus "Albus" ) cultivar led to gave the lowest total carbohydrate content in leaves (15.98%) .