Relationship between tree nutritional status and apple quality

Development of prediction models for the quality of apples is useful in guiding fruit tree nutrition and in optimising fruit management. The interrelationships between the leaf nutrient contents and some fruit quality indices were studied in five apple cultivars - Generos, Florina, Delicios de Voine...

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Main Authors: C. Jivan, F. Sala
Format: Article
Language:English
Published: Czech Academy of Agricultural Sciences 2014-03-01
Series:Horticultural Science
Subjects:
Online Access:https://hortsci.agriculturejournals.cz/artkey/hor-201401-0002_relationship-between-tree-nutritional-status-and-apple-quality.php
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author C. Jivan
F. Sala
author_facet C. Jivan
F. Sala
author_sort C. Jivan
collection DOAJ
description Development of prediction models for the quality of apples is useful in guiding fruit tree nutrition and in optimising fruit management. The interrelationships between the leaf nutrient contents and some fruit quality indices were studied in five apple cultivars - Generos, Florina, Delicios de Voinesti, Jonathan and Pionier. Highly significant relationships between N and Fe contents (R2 = 0.734; P < 0.01) and between Cu and K (R2 = 0.702; P < 0.01) were found. Acidity was negatively correlated with soluble solids content in the cvs Generos, Delicios de Voinesti and Jonathan, whereas the respective correlation in the apple cv. Pionier was positive. In cv. Florina fruits no significant correlation was found between acidity and soluble solids content. Among macroelements, nitrogen had a considerable contribution to fruit acidity and this allows to predict this index with a high degree of safety (R2 = 0.690; RMSEPN = 0.105). Microelements have a lower contribution to acidity and a higher one to the sugar accumulation; in case of Zn are R2 = 0.809; RMSEPZn = 4.250.
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spelling doaj.art-15b39f8c608d4a4caf47bda48acc6fd32023-02-23T03:34:53ZengCzech Academy of Agricultural SciencesHorticultural Science0862-867X1805-93332014-03-014111910.17221/152/2013-HORTSCIhor-201401-0002Relationship between tree nutritional status and apple qualityC. Jivan0F. Sala1Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Banat University of Agricultural Sciences and Veterinary Medicine of Timişoara, Timişoara, RomaniaDepartment of Soil Science and Plant Nutrition, Faculty of Agriculture, Banat University of Agricultural Sciences and Veterinary Medicine of Timişoara, Timişoara, RomaniaDevelopment of prediction models for the quality of apples is useful in guiding fruit tree nutrition and in optimising fruit management. The interrelationships between the leaf nutrient contents and some fruit quality indices were studied in five apple cultivars - Generos, Florina, Delicios de Voinesti, Jonathan and Pionier. Highly significant relationships between N and Fe contents (R2 = 0.734; P < 0.01) and between Cu and K (R2 = 0.702; P < 0.01) were found. Acidity was negatively correlated with soluble solids content in the cvs Generos, Delicios de Voinesti and Jonathan, whereas the respective correlation in the apple cv. Pionier was positive. In cv. Florina fruits no significant correlation was found between acidity and soluble solids content. Among macroelements, nitrogen had a considerable contribution to fruit acidity and this allows to predict this index with a high degree of safety (R2 = 0.690; RMSEPN = 0.105). Microelements have a lower contribution to acidity and a higher one to the sugar accumulation; in case of Zn are R2 = 0.809; RMSEPZn = 4.250.https://hortsci.agriculturejournals.cz/artkey/hor-201401-0002_relationship-between-tree-nutritional-status-and-apple-quality.phpfoliar diagnosisnutrient contentquality indicesprediction model
spellingShingle C. Jivan
F. Sala
Relationship between tree nutritional status and apple quality
Horticultural Science
foliar diagnosis
nutrient content
quality indices
prediction model
title Relationship between tree nutritional status and apple quality
title_full Relationship between tree nutritional status and apple quality
title_fullStr Relationship between tree nutritional status and apple quality
title_full_unstemmed Relationship between tree nutritional status and apple quality
title_short Relationship between tree nutritional status and apple quality
title_sort relationship between tree nutritional status and apple quality
topic foliar diagnosis
nutrient content
quality indices
prediction model
url https://hortsci.agriculturejournals.cz/artkey/hor-201401-0002_relationship-between-tree-nutritional-status-and-apple-quality.php
work_keys_str_mv AT cjivan relationshipbetweentreenutritionalstatusandapplequality
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