Effect of some chemicals on growth, fruiting, yield and fruit quality of "Succary Abiad" mango cv.
Wahdan M. T., Habib S. E., Bassal M. A., Qaoud E. M.
Author Affiliation: Department of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt.
The Journal of American Science 7 : 651-658
Abstract : The present investigation was carried out in two successive seasons of 2007 and 2008 on mango cv. Succary Abiad, at Abou Swear region, Ismailia Governorate, Egypt in a sandy soil and irrigated with immerged irrigation system, to study the effect of some chemicals and growth regulators on growth, leaf mineral contents, flowering, fruiting, yield and fruit quality. The trees were subjected to eleven treatments using urea 2%, NAA 40 and 60 ppm, Ca Cl2 2%, GA3 20 and 40 ppm and water spraying as control. The results revealed that, spraying with urea, NAA and GA3 at all concentrations significantly increased shoot length, number of leaves per shoot and leaf area higher than control while urea showed the superiority effect. Nitrogen and Potassium content in leaves significantly increased within urea, NAA and GA3 higher than control. Calcium content in the leaves showed fluctuated values during the two seasons within the different treatments although Ca Cl2 2% sprayed at two months after full bloom showed the highest values in the two seasons of study. All treatments had significantly higher yield than control in the two seasons. The fruit weight and volume were the highest within all treatments compared with control. Fruit firmness and SSC were increased within all treatments with significantly increments than control. Vitamin C was significantly increased in fruits harvested from trees sprayed with GA3 40 ppm at two months after full bloom. Total sugars in the fruits significantly increased higher than control within all treatments except GA3 20 ppm added at one month after full bloom.