Relationship between tree nutritional status and apple quality

C. Jivan and F. Sala
Additional contact information
C. Jivan: Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Banat University of Agricultural Sciences and Veterinary Medicine of Timişoara, Timişoara, Romania
F. Sala: Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Banat University of Agricultural Sciences and Veterinary Medicine of Timişoara, Timişoara, Romania

Horticultural Science, 2014, vol. 41, issue 1, 1-9

Abstract: 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.

Keywords: foliar diagnosis; nutrient content; quality indices; prediction model (search for similar items in EconPapers)
Date: 2014
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://hortsci.agriculturejournals.cz/doi/10.17221/152/2013-HORTSCI.html (text/html)
http://hortsci.agriculturejournals.cz/doi/10.17221/152/2013-HORTSCI.pdf (application/pdf)
free of charge

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlhor:v:41:y:2014:i:1:id:152-2013-hortsci

DOI: 10.17221/152/2013-HORTSCI

Access Statistics for this article

Horticultural Science is currently edited by Ing. Eva Karská (Executive Editor)

More articles in Horticultural Science from Czech Academy of Agricultural Sciences
Bibliographic data for series maintained by Ivo Andrle ().