Effect of Different Sources of Magnesium on Productivity and Fruit Quality of Banana Grande Naine Cv.

This study was carried out on the 1st and 2nd Grande Naine banana ratoons grown in sandy soil and a drip irrigation system of banana orchard belonging to Horticultural Research Station at Al-Kanatir Al-Khairia, Qaliobia Governorate, Egypt, during two successive 2021 and 2022 experimental seasons-Mats (plantation holes) were 3× 4 meters apart, to study the effect of foliar spray with different magnesium sources, i.e.,MgSO4,chelated MgSO4 ,Nano MgO , on the productivity, and fruit quality of banana Grande Naine Cv. Each magnesium source sprays treatments were applied covering the whole foliage of each plant, whereas 3 liters were found to be sufficient in this concern. Besides, periodically applied 5 times/season at a one-month interval in the 1st week of March, April, May, June and July. The results showed that magnesium sprays, especially banana plants sprayed with Nano MgO at 100 ppm had a positive effect on yield and fruit physical and chemical characteristics compared to control (spraying with tap water) and other magnesium sources treatments. It could be recommended to spray banana Grande Naine plants by sprayed with Nano MgO at 100 ppm five times per season at a one-month interval (in the 1st week of March, April, May, June, and July), to enhance yield and fruit physical and chemical characteristics.The results showed that magnesium sprays, especially banana plants sprayed with Nano MgO at 100 ppm had a positive effect on yield and fruit physical and chemical characteristics compared to control (spraying with tap water) and other magnesium sources treatments. It could be recommended to spray banana Grande Naine plants by sprayed with Nano MgO at 100 ppm five times per season at one-month interval (in the 1st week of March, April, May, June, and July), to enhance yield and fruit physical and chemical characteristics.