Mineral Monitorization in Different Tissues of Solanum tuberosum L. during Calcium Biofortification Process
Ana Rita F. Coelho | Fernando Cebola Lidon | Cláudia Campos Pessoa | Diana Daccak | Inês Carmo Luís | Ana Coelho Marques | José Cochicho Ramalho | José Manuel N. Semedo | Maria Manuela Silva | Isabel P. Pais | Maria Graça Brito | José Carlos Kullberg | Paulo Legoinha | Maria Simões | Paula Scotti-Campos | Maria Fernanda Pessoa | Fernando Henrique Reboredo
Calcium is one of the 16 essential elements for plants, being required as Ca2+ and being involved in several fundamental processes (namely, in the stability and integrity of the cell wall, the development of plant tissue, cell division, and in stress responses). Moreover, Ca plays an important role in potato production. In this context, this study aimed to monitor the culture development (in situ and using an unmanned aerial vehicle (UAV)) and the mineral content of four essential elements (Ca, P, K, and S) in different organs of Solanum tuberosum L. (roots, stems, leaves, and tubers) during a calcium biofortification process, carried out with two types of solutions (CaCl2 and Ca-EDTA) with two concentrations (12 and 24 kg∙:ha&minus:1). The calcium content generally increased in the S. tuberosum L. organs of both varieties and showed, after the last foliar application, an increase in Ca content that varied between 5.7&ndash:95.6% and 20.7&ndash:33%, for the Picasso and Agria varieties, respectively. The patterns of accumulation in both varieties during the biofortification process were different between the variety and mineral element. Regarding the quality analysis carried out during the development of the tubers, only the Agria variety was suitable for industrial processing after the last foliar application.
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