Original scientific paper

Yield and content of biogenic elements in tomato fruit at different NaCl concentrations in nutrient solution

Renata Erhatić ; Visoko gospodarsko učilište u Križevcima
Nina Toth ; Agronomski fakultet Sveučilišta u Zagrebu
Božidar Benko ; Agronomski fakultet Sveučilišta u Zagrebu
Tomislava Permin-Volf ; Visoko gospodarsko učilište u Križevcima
Miomir Stojnović ; Visoko gospodarsko učilište u Križevcima
Ivana Babić ; Bilinogojstvo-Vrtlarstvo na Agronomskom fakultetu

Abstract

Quality of fresh tomato fruits, especially mineral content can be improved by increasing the EC value, or the concentration of NaCl in the nutrient solution without a significant reduction in yield. The study was conducted during the years of 2004 and 2005 with Belle tomato variety in hydroponics rock wool slabs in order to determine the impact of increased concentrations of NaCl in the nutrient solution on tomato yield and content of biogenic elements in the fruit compared to the standard solution without added NaCl and the EC-value of 2 dS/m.
The experiment was set in a randomized complete block design with four replications and sampling was conducted in three harvests. The nutrient solution with EC-value of 2 dS/m was used as a control and increased EC-values were achieved by adding NaCl in the standard nutrient solution, 0.05% at 3 dS/m, 0.125% at 4.5 dS/m and 0.2% at 6 dS/m.
The highest yield was recorded with a standard nutrient solution treatment and ranged from 2.06 to 2.60 kg/plant in 2004 and from 3.41 to 5.19 kg/plant in 2004. In comparison to the standard solution without added NaCl, the concentration of 0.05 and 0.125% NaCl resulted in statistically equivalent yield and content of biogenic elements, and the concentration of 0.2% NaCl with reasonably smaller values of these parameters. Increasing NaCl recorded a significant increase in dry matter content, which is proportional to the increase of NaCl in the nutrient solution.

Keywords

Lycopersicon esculentum Mill.; hydroponics; electrical conductivity; yield; macro and micro elements

Hrčak ID:

162804

URI

https://hrcak.srce.hr/162804

Publication date:

17.7.2013.

Article data in other languages: croatian

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