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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Accumulation of nutrients during the formation of star fruit cultivars under different irrigation regimes

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Author(s):
DANILO EDUARDO ROZANE [1] ; RENATO DE MELLO PRADO [2] ; BETANIA VAHL DE PAULA [3] ; EDUARDO MACIEL HAITZMANN DOS SANTOS [4] ; WILLIAM NATALE [5] ; DANIEL ANGELUCCI DE AMORIM [6] ; AMANDA HERNANDES [7]
Total Authors: 7
Affiliation:
[1] São Paulo State University (UNESP). Department of Agronomy - Brasil
[2] São Paulo State University (UNESP). Department of Soil - Brasil
[3] Federal University of Santa Maria (UFSM). Department of Soil Science - Brasil
[4] São Paulo State University (UNESP). Department of Agronomy - Brasil
[5] Federal University of Ceara (UFC). Department of Fitotecnia - Brasil
[6] Agricultural Research Company of Minas Gerais (EPAMIG). Experimental Farm of Caldas - Brasil
[7] Coordination of Integral Technical Assistance (CATI). Batatais Agriculture House - Brasil
Total Affiliations: 7
Document type: Journal article
Source: Revista Colombiana de Ciencias Hortícolas; v. 16, n. 2 2023-02-18.
Abstract

ABSTRACT Nutrient accumulation during the formation of star fruit (Averrhoa carambola) trees can be affected by the water regime and by the cultivar, but the details are not yet known for this species. The aim of this study was to evaluate the nutrient uptake of two star fruit cultivars in the formation phase under two irrigation regimes. The experiment was developed with a completely randomized design, with subdivided plots, with two irrigation levels (with and without irrigation) as plots, and two star fruit cultivars as subplots ('B-10' and 'Golden Star') and seven collection times from 0 to 720 days after transplanting (DAT) into the field as sub-subplots with six replicates. Nutrient uptake was evaluated in stem and leaves, and it was possible to observe that nutrient uptake and the average accumulation rate followed the dry matter mass accumulation of star fruit trees in formation. Nutrient uptake by shoots at 720 DAT differed for the Golden Star cultivar in the rainfed regime and for the B-10 cultivar in both irrigation regimes. There was no difference and followed the sequence Ca > K > N > Mg > S > P > Mn > Fe > Zn > B > Cu, and for Golden Star cultivar in the irrigated regime, the accumulation sequence was Ca> K> N> Mg> Mn> P> S> Fe> Zn > B> Cu. The highest accumulation occurred in the irrigated regime regardless of cultivar. Golden Star cultivar accumulated, on average, larger amounts of N, P, K, Mg, S, Fe and Mn. (AU)