دراسة تقليل اضرار الذبابة البيضاء باستخدام نظام الزراعة المتداخلة مع محصول الخيار في 1- بعض صفات النمو الخضري للبطاطا

Abstract

The experiment was conducted in one of the agricultural fields in the province of Kirkuk in the autumn season 2017 to study the effect of the of density Bith alpha cucumber plantations in the nested farming system to reduce the damage of the whitefly insect on the potato crop. The study included three varieties of potatoes: Actrice, Alaska, Oxyania and four levels Of the cucumber plant density mixed with the potato crop of 0, 1, 2 and 3 cucumber plants for each experimental unit (3m2). The experiment consisted of 12 treatments resulting from the combination of the above tow factors. Significant differences between the averages according to a polynomial test Duncan. The results showed the superiority of the Actrice cultivar with plant length, average thickness of the air steems, number of leaves, leaf area of the plant and percentage of dry matter in leaves. Oxyania was characterized by the number of air stems and leaf content of chlorophyll, while Alaska was the least valuable of all the studied and most numerous specimens of the white fly insect on its leaves. The results showed that cucumber cultivars were mixed with the potato yield and the density of two plants of the experimental unit (3 m 2) resulted in the best values for all vegetative growth traits under study