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Article

Aluminum Toxicity in Sweet Cherry Trees Grown in an Acidic Volcanic Soil

1
Departamento de Fruticultura y Enología, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
2
Departamento de Investigación y Desarrollo, Agriismart Limitada, Avenida Simpson 260, Valdivia 5090000, Chile
*
Author to whom correspondence should be addressed.
Academic Editor: Elena Baldi
Agronomy 2021, 11(6), 1259; https://doi.org/10.3390/agronomy11061259
Received: 1 June 2021 / Revised: 14 June 2021 / Accepted: 18 June 2021 / Published: 21 June 2021
(This article belongs to the Special Issue Soil-Plant Interaction: Focus on Plant Growth and Soil Biodiversity)
Chile is the world’s largest exporter of sweet cherries. New plantings have been shifted to southern regions, where aluminum (Al) phytotoxicity could be a serious constraint on establishing orchards in acidic volcanic soils. This study investigated the effects of soil Al on growth and macronutrient uptake in non-bearing ‘Bing’ on Gisela®6 trees grown in 120 L pots containing volcanic soil with four concentrations of exchangeable Al (0.12, 0.40, 0.60, and 1.24 cmol kg−1). At the end of the first and second seasons after planting, the trees were destructively harvested, and individual organs were analyzed for dry weight, Al concentration, and macronutrient concentration. Increasing soil Al concentrations had a detrimental effect on nutrient uptake and growth, particularly in the second season. However, fine-root growth was significantly reduced from the first season and from low soil Al concentrations. In sweet cherry trees, Al was preferentially accumulated in root tissues and its translocation to aerial organs was restricted. In addition, Al accumulation in fine roots, in conjunction with a reduction in root growth, severely restricted the uptake of N, P, K, Mg, and, particularly, Ca. Therefore, soil acidity must be corrected to ensure the successful establishment of sweet cherry orchards in southern Chile. View Full-Text
Keywords: Gisela®6; soil-exchangeable aluminum; macronutrient uptake; Andisols; Chile Gisela®6; soil-exchangeable aluminum; macronutrient uptake; Andisols; Chile
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MDPI and ACS Style

Bonomelli, C.; Artacho, P. Aluminum Toxicity in Sweet Cherry Trees Grown in an Acidic Volcanic Soil. Agronomy 2021, 11, 1259. https://doi.org/10.3390/agronomy11061259

AMA Style

Bonomelli C, Artacho P. Aluminum Toxicity in Sweet Cherry Trees Grown in an Acidic Volcanic Soil. Agronomy. 2021; 11(6):1259. https://doi.org/10.3390/agronomy11061259

Chicago/Turabian Style

Bonomelli, Claudia, and Pamela Artacho. 2021. "Aluminum Toxicity in Sweet Cherry Trees Grown in an Acidic Volcanic Soil" Agronomy 11, no. 6: 1259. https://doi.org/10.3390/agronomy11061259

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