Original scientific paper

Status of Fe, Zn and Mn in cv. Istrian Malvasia (Vitis vinifera L.) leaf from four locations in north-western Istria

Igor Palčić orcid.org/0000-0003-2935-9319 ; Sveučilište u Zagrebu, Agronomski fakultet
Mirjana Herak Ćustić ; Sveučilište u Zagrebu, Agronomski fakultet
Ana Jeromel ; Sveučilište u Zagrebu, Agronomski fakultet
Marko Karoglan ; Sveučilište u Zagrebu, Agronomski fakultet
Mario Staver ; Veleučilište u Rijeci, Poljoprivredni odjel Poreč
Kristijan Damijanić ; Veleučilište u Rijeci, Poljoprivredni odjel Poreč
Petar Šegon ; Veleučilište u Rijeci, Poljoprivredni odjel Poreč
Igro Pasković

Abstract

Analysis of plant material is the basis for determining nutrient status and planning controlled grapevine nutrition. The aim of this study was to determine the status of Fe, Zn and Mn in cv. Istrian Malvasia leaf as important microelements for both the growth and development of the plant, but also for wine quality. The experiment was set up in four vineyards (terroirs) on four soil types, subtypes vitisols: red soil, brown soil on marl, and the two rendzinas on marl with different amounts of CaO. To determine the status of Fe, Zn and Mn, whole leaves (petiole+blade) were taken twice through the vegetation, in the stage of bloom and veraison during 2013 and 2014. Determined Fe values ranged from 70 to 89 mg kg-1 in bloom stage, while from 71 to 101 mg kg-1 in veraison. Zn ranged from 20 to 33 mg kg-1 in bloom, and from 17 to 42 mg kg-1 in veraison. Determined Mn ranged in bloom from 56 to 349 mg kg-1, while in veraison from 88 to 565 mg kg- 1. However, in comparison to reference values, Fe and Zn values were within minimal for grapevine needs, while Mn values were sufficient. Different values suggest the need of a personally designed fertilization for every location.

Keywords

microelements; grapevine; fertilization

Hrčak ID:

162430

URI

https://hrcak.srce.hr/162430

Publication date:

21.7.2015.

Article data in other languages: croatian

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