IMPOROVING OF MONGOS PRODUCTIVITY BY USING GROWTH REGULATORS AND SOME SYSTEMIC COPPER COMPLEXES

Abstract

This study was conducted during the seasons of 2019 and 2020 on adult Alphonse and Zebda mango trees grown in a private farm at El-khatatba district, Menofiea Governorate. The trees were 10 years old at the beginning of the experiment and planted at 7X7 (86 trees / fed) under drip irrigation system, healthy, similar in growth and free from various injuries. All horticultural practices such as irrigation, fertilization, pest and diseases controls were applied. The effect of NAA, GA3 , Cofret and perfecto-one (Systemic copper complexes) on vegetative growth chemical components of levels and shoots , physical and chemical of panicles , yields attributes and fruits chemical component were evaluated . All sprayers were done at first of January and repeated on the same trees in first of February in both studied seasons to evaluate the effects of NAA, GA3 and two copper complexes on floral malformation, yield and quality of "Alphonse and Zebda " mangos.