Effect of Some Growth Regulators and Systemic Copper Complexes on Reducing Floral Malformation, Yield and Quality of

Aboelezz, Abdelaty; Abou Hadid, Ayman; Abdel-Hamid, Nazmy; nasr, samah

doi:10.21608/ajs.2021.78941.1386

	Effect of Some Growth Regulators and Systemic Copper Complexes on Reducing Floral Malformation, Yield and Quality of "Alphonse" Mango (Mangifera indica L.)
Arab Universities Journal of Agricultural Sciences
Article 19, Volume 29, Issue 2, August 2021, Page 739-752 PDF (337.57 K)
Document Type: Original Article
DOI: 10.21608/ajs.2021.78941.1386
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Authors
Abdelaty Aboelezz ¹; Ayman Abou Hadid²; Nazmy Abdel-Hamid ²; samah nasr ³
¹Institute of Environmental Studies and Research, Ministry of Military Production, Cairo, Egypt
²Horticulture Department, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
³Higher Institute for Agriculture Co-Operation, Cairo, Egypt
Abstract
The present study was carried out during 2019 and 2020 seasons on Alphonse mango trees to evaluate the effect of some growth reg-ulators and systemic copper complexes on flo-ral malformation, yield and quality. Vegetative growth characters were superior with 200 NAA ppm and 100 ppm cofret. However, total chlorophyll, total carbohydrates and C/N ratio recorded the highest values with 200 ppm NAA. Macro elements N, P, K and Mg % were higher with GA3 at 100 ppm, whereas the highest values of micro elements Fe, Zn, Mn and Cu (ppm) were obtained with perfecto-one at 100 ppm. The number of total panicles/tree was increased with NAA 200 ppm and per-fecto-one 100 ppm treatments than other treat-ments. The number and percent of malformed panicles/tree were significantly decreased with the applied treatments than in control.. An in-creasing in total indoles, total phenols and pol-yphenol oxidase activity were recorded with 200 ppm NAA and 100 ppm perfecto-one treatments than in others. Final fruit set% and the number of fruits /tree were increased with the treatments of 200 ppm NAA and 100 ppm perfecto-one. However, the highest values of fruit weight were recorded by GA3 and perfecto-one both at100 ppm treatments, whereas the highest yield/tree values were rec-orded by NAA 200 ppm and 100 ppm perfecto-one. Finally, fruit quality involved TSS, acid-ity, L-ascorbic acid, total sugars and total ca-rotenoids were greatly improved with the ap-plied treatments than in control.
Keywords
Mangos; Alphonse; Growth regu-lators; Systemic copper; Malformation; Yield


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Effect of Some Growth Regulators and Systemic Copper Complexes on Reducing Floral Malformation, Yield and Quality of "Alphonse" Mango (Mangifera indica L.)