Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees

Calcium (Ca) plays a vital role as a macronutrient in the growth and development of plants. In order of decreasing solubility, Ca can be found in vegetal tissues as soluble Ca (Fraction I), bound Ca (mainly pectates, Fraction II), inorganic insoluble Ca (mainly phosphates and carbonates, Fraction II...

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Main Authors: Julia Morales, Belén Martínez-Alcántara, Almudena Bermejo, Jorge Millos, Francisco Legaz, Ana Quiñones
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Agronomy
Subjects:
Online Access:https://www.mdpi.com/2073-4395/13/12/2971
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author Julia Morales
Belén Martínez-Alcántara
Almudena Bermejo
Jorge Millos
Francisco Legaz
Ana Quiñones
author_facet Julia Morales
Belén Martínez-Alcántara
Almudena Bermejo
Jorge Millos
Francisco Legaz
Ana Quiñones
author_sort Julia Morales
collection DOAJ
description Calcium (Ca) plays a vital role as a macronutrient in the growth and development of plants. In order of decreasing solubility, Ca can be found in vegetal tissues as soluble Ca (Fraction I), bound Ca (mainly pectates, Fraction II), inorganic insoluble Ca (mainly phosphates and carbonates, Fraction III) and organic insoluble Ca or oxalate (Fraction IV). To explore the impact of Ca fertilizer application on plant growth and its allocation among different fractions, young citrus trees were fed over a complete vegetative cycle with a <sup>44</sup>Ca labeled fertilizer (T1-Ca), while control plants (T2) received no Ca fertilizer. The results showed that plants receiving Ca exhibited significantly greater biomass. <sup>44</sup>Ca derived from the fertilizer was localized mainly in sink organs (new flush leaves–twigs and fibrous roots). The primary fraction responsible for total Ca partitioning was Fraction II, followed by Fraction III or IV. Citrus plants, commonly found in calcareous soils, demonstrated improved growth with calcium treatments, indicating a positive link between calcium supplementation and enhanced development. The calcium supplied through the fertilizer (<sup>44</sup>Ca) was predominantly concentrated in sink organs (mainly in Ca-pectate fraction), including new flush leaves and twigs above ground, as well as fibrous roots below ground.
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spelling doaj.art-7a683d5c59364b28b30fdef93d3575602023-12-22T13:46:30ZengMDPI AGAgronomy2073-43952023-11-011312297110.3390/agronomy13122971Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus TreesJulia Morales0Belén Martínez-Alcántara1Almudena Bermejo2Jorge Millos3Francisco Legaz4Ana Quiñones5Center for the Development of Sustainable Agriculture—CDAS, Valencian Institute for Agricultural Research—IVIA, Crta. CV-315, Km 10.7, 46113 Moncada, Valencia, SpainCenter for the Development of Sustainable Agriculture—CDAS, Valencian Institute for Agricultural Research—IVIA, Crta. CV-315, Km 10.7, 46113 Moncada, Valencia, SpainDepartment of Citriculture and Vegetal Production, Valencian Institute for Agricultural Research—IVIA, Crta. CV-315, Km 10.7, 46113 Moncada, Valencia, SpainService of Food Security and Sustainable Development-C.A.C.T.I., Vigo University, 36310 Vigo, Pontevedra, SpainDepartment of Citriculture and Vegetal Production, Valencian Institute for Agricultural Research—IVIA, Crta. CV-315, Km 10.7, 46113 Moncada, Valencia, SpainCenter for the Development of Sustainable Agriculture—CDAS, Valencian Institute for Agricultural Research—IVIA, Crta. CV-315, Km 10.7, 46113 Moncada, Valencia, SpainCalcium (Ca) plays a vital role as a macronutrient in the growth and development of plants. In order of decreasing solubility, Ca can be found in vegetal tissues as soluble Ca (Fraction I), bound Ca (mainly pectates, Fraction II), inorganic insoluble Ca (mainly phosphates and carbonates, Fraction III) and organic insoluble Ca or oxalate (Fraction IV). To explore the impact of Ca fertilizer application on plant growth and its allocation among different fractions, young citrus trees were fed over a complete vegetative cycle with a <sup>44</sup>Ca labeled fertilizer (T1-Ca), while control plants (T2) received no Ca fertilizer. The results showed that plants receiving Ca exhibited significantly greater biomass. <sup>44</sup>Ca derived from the fertilizer was localized mainly in sink organs (new flush leaves–twigs and fibrous roots). The primary fraction responsible for total Ca partitioning was Fraction II, followed by Fraction III or IV. Citrus plants, commonly found in calcareous soils, demonstrated improved growth with calcium treatments, indicating a positive link between calcium supplementation and enhanced development. The calcium supplied through the fertilizer (<sup>44</sup>Ca) was predominantly concentrated in sink organs (mainly in Ca-pectate fraction), including new flush leaves and twigs above ground, as well as fibrous roots below ground.https://www.mdpi.com/2073-4395/13/12/2971biomasslabeled Cafraction Capectateoxalatephosphate
spellingShingle Julia Morales
Belén Martínez-Alcántara
Almudena Bermejo
Jorge Millos
Francisco Legaz
Ana Quiñones
Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
Agronomy
biomass
labeled Ca
fraction Ca
pectate
oxalate
phosphate
title Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
title_full Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
title_fullStr Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
title_full_unstemmed Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
title_short Effect of Calcium Fertilization on Calcium Uptake and Its Partitioning in Citrus Trees
title_sort effect of calcium fertilization on calcium uptake and its partitioning in citrus trees
topic biomass
labeled Ca
fraction Ca
pectate
oxalate
phosphate
url https://www.mdpi.com/2073-4395/13/12/2971
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