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, Pages 739-752 PDF (337.57 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajs.2021.78941.1386 | ||
| Authors | ||
| Abdelaty Aboelezz1; Ayman Abou Hadid2; Nazmy Abdel-Hamid2; 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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