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Plants 2018, 7(4), 97; https://doi.org/10.3390/plants7040097

Mango Fruit Yield and Critical Quality Parameters Respond to Foliar and Soil Applications of Zinc and Boron

1
Department of Agriculture, Government of the Punjab, Mango Research Institute, Multan 60500, Pakistan
2
Department of Geography, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada
3
Department of Geology, St. Mary’s University, 14500 Bannister Road SE, Calgary, AB T2X 1Z4, Canada
*
Author to whom correspondence should be addressed.
Received: 1 October 2018 / Revised: 30 October 2018 / Accepted: 31 October 2018 / Published: 3 November 2018
(This article belongs to the Special Issue Fruit Biology)
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Abstract

Mango (Mangifera indica L.), the sixth most important fruit crop worldwide, is likely at risk under a climate change scenario of accelerated soil organic matter mineralization and constrained plant nutrient supplies such as zinc (Zn) and boron (B). We identified the optimum nutrient formulation and application method to possibly rectify nutrient deficits in mango plants grown in one of the warmest and driest regions—Multan, Pakistan. We evaluated the yield and physiological (quality) responses of 20-year-old mango trees to seven treatments of foliar and soil applications of Zn and B. Combined soil application of B and Zn resulted in optimum increases in leaf mineral B and Zn and fruit-set, retention, yield, pulp recovery and total soluble solids at ripening (p = 0.021), while reducing titratable acidity and early fruit shedding (p = 0.034). Additionally, this treatment improved fruit quality (taste, flavour, texture, aroma, acceptability; p ≤ 0.05). Yield was found to be correlated with retention percentage (P ≤ 0.001; R2 = 0.91), which was in turn related to fruit-set number panicle−1 (P = 0.039; R2 = 0.61). Therefore, we suggest that combined soil application of B and Zn mitigates leaf mineral deficiencies and improves the yield and quality of mango more efficiently than other individual or combined foliar or soil treatments used in this study. View Full-Text
Keywords: aroma; flavour; fruit quality; fruit retention; fruit set; fruit yield; Mangifera indica L.; nutrient; orchard; organoleptic; taste; texture aroma; flavour; fruit quality; fruit retention; fruit set; fruit yield; Mangifera indica L.; nutrient; orchard; organoleptic; taste; texture
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Ahmad, I.; Bibi, F.; Ullah, H.; Munir, T.M. Mango Fruit Yield and Critical Quality Parameters Respond to Foliar and Soil Applications of Zinc and Boron. Plants 2018, 7, 97.

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