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Relationship between tree nutritional status and apple quality

Author

Listed:
  • 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)

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.

Suggested Citation

  • C. Jivan & F. Sala, 2014. "Relationship between tree nutritional status and apple quality," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 41(1), pages 1-9.
    • Handle: RePEc:caa:jnlhor:v:41:y:2014:i:1:id:152-2013-hortsci
    DOI: 10.17221/152/2013-HORTSCI
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    Cited by:

    1. Mahshid Doryanizadeh & Mahmood Ghasemnezhad & Atefeh Sabouri, 2016. "Estimation of Postharvest Quality of “Red Delicious†Apple Fruits Based on Fruit Nutrient Elements Composition," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(1), pages 164-164, December.

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