The effect of zinc and manganese application on the yield and micronutrient elements in leaf and fruit of cucumber (Cucumis sativus L.)

In order to investigate the effect of Zn and Mn application on the fresh weight of fruit and the absorption of some macronutrients and micronutrients of greenhouse cucumber, a factorial experiment was conducted in a completely randomized design with two factors and three replications. The first factor: Zn at concentrations of ۰.۰۵, ۵ and ۱۰ mg L-۱ and the second factor: Mn at concentrations of ۰.۵, ۲ and ۴ mg L-۱ were applied in the form of a nutrient solution. Results showed that the highest fruit yield was obtained at a concentration of ۱۰ mg L-۱ Zn, while increasing Mn led to a decrease in yield. Also, the application of Zn and Mn had no effect on the amount of K in leaves and fruits, nor did the application of Zn have any effect on the amount of Ca in leaves and fruits. However, increasing the concentration of Mn in the nutrient solution caused a decrease in the content of Ca in cucumber leaves and fruits. Fe and Cu elements showed a decreasing trend due to increasing concentrations of Zn by۱۰ mg L-۱ and Mn up to ۴ mg L-۱. According to the results, it was found that the application of Zn in nutrient solution led to a decrease in the amount of Mn and an increase in the amount of Zn in leaves and fruits. Also, the application of Mn in ۴ mg L-۱ concentration caused to a decrease in the amount of Zn and an increase in Mn in leaves and fruits. In general, with an increase in the concentration of Zn and Mn in the nutrient solution, the absorption of Cu and Fe in cucumber leaves and fruits decreased but, increasing the concentration of Zn and Mn by ۵ and ۲ mg L-۱, respectively, in the nutrient solution is recommended to increase the yield and nutritional value of cucumber.

کلیدواژه ها:

Antagonistic ، Absorption of elements ، Greenhouse cucumber ، Fruit weight ، آنتاگونیستی ، جذب عناصر ، خیار گلخانه ای ، وزن میوه