Response of Two variety of Snake Cucumber to Spray with Atonics Biostimulator in Some Chemical Parameters

Abstract

Abstract The experiment was carried out in unheated greenhouses in the station of the College of Agriculture and Marshes/Dhi Qar University during the fall season 2020-2021, to study the effect of atonic biostimulant in chemical parameters growth and yield of snak cucumber (Cucumis melo. Var flexuosus naud) under protected cultivation,. The experiment included two factors: First one two cultivars of cucumber (Al-Baghdadi and Al-Halawi), second factor was atonic biostimulant (0, 0.5, 1, 1.5 ml L−1) A Randomized Complete Block Design (R.C.B.D.) were used with three replicates and means were compared according to Least Significant Difference Test (L.S.D.)test at probability of 0.05. Determining the stages of plant growth in which the foliar spraying process was carried out and the number of sprays. Results were summarized as follows: Al-Baghdadi cultivar was significantly superior in (content of total soluble carbohydrates in fruits, vitamin (C) and total chlorophyll content of fruits), reached (6.181, 101.8 and 9,744) mg 100 g−1 respectively Compare with Al-Halawi cultivar which recorded the highest rate of protein in fruits(4.115 %.), The addition of atonic spray treatment at a concentration 1.5 ml L−1 was significantly in (content of total soluble carbohydrates in fruits, vitamin (C), total chlorophyll and proteins in fruits), which recorded (7.327 mg 100g−1 and 132.5 mg 100g−1 and 10,860 mg 100g−1 and 4.323%) respectively, but the control treatment gave the lowest rates. the interaction between Al-Baghdadi cultivar and 1.5 mL−1 atonic biostimulant was superior (content of total soluble carbohydrates, vitamin (C), total chlorophyll content in fruits), 145.0 mg 100 g−1, 11.019 mg 100 g−1 and 4.354%) respectively, but the comparison treatment gave the lowest rates.