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Título: | Nutritional Performance of Five Citrus Rootstocks under Different Fe Levels |
Autor: | Pestana, Maribela; García-Caparrós, Pedro; Saavedra, Teresa; Gama, Florinda; Abadía Bayona, Javier CSIC ORCID ; Varennes, Amarilis de; Correia, Pedro José | Palabras clave: | Citrus Fe chlorosis Ferric chelate reductase Mineral composition |
Fecha de publicación: | 13-sep-2023 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Plants 12(18): 3252 (2023) | Resumen: | Iron is an essential micronutrient for citrus, playing an important role in photosynthesis and yield. The aim of this paper was to evaluate the tolerance to Fe deficiency of five citrus rootstocks: sour orange (S), Carrizo citrange (C), Citrus macrophylla (M), Troyer citrange (T), and Volkamer lemon (V). Plants were grown for 5 weeks in nutrient solution that contained the following Fe concentrations (in µM): 0, 5, 10, 15, and 20. At the end of the experiment, biomass (dry weight—DW), leaf area, total leaf chlorophyll (CHL), and the activity of root chelate reductase (FCR) were recorded. Additionally, the mineral composition of roots (R) and shoots (S) was evaluated. Principal component analysis was used to study the relationships between all parameters and, subsequently, the relations between rootstocks. In the first component, N-S, P-S, Ca-S, Cu-S, Zn-S, Mn-S, Zn-R, and Mn-R concentrations were related to leaf CHL and FCR. Increases in leaf CHL, Mg-R, and DW (shoots and roots) were inversely related to Cu-R, which was shown in the second component. The values obtained were consistent for V10, C15, and C20, but in contrast for S0 and S5. In conclusion, micronutrient homeostasis in roots and shoots of all rootstocks were affected by Fe stress conditions. The Fe/Cu ratio was significantly related to CHL, which may be used to assist rootstock performance. | Versión del editor: | https://doi.org/10.3390/plants12183252 | URI: | http://hdl.handle.net/10261/336456 | DOI: | 10.3390/plants12183252 | E-ISSN: | 2223-7747 |
Aparece en las colecciones: | (EEAD) Artículos |
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Nutritional Performance_of_Five_Pestana.pdf | 1,01 MB | Adobe PDF | Visualizar/Abrir |
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