Vegetable Production in an Integrated Aquaponic System with Stellate Sturgeon and Spinach – Matador variety

Stefan Mihai Petrea, Victor Cristea, Lorena Dediu, Maria Contoman, Maria Dicu, Alina Antache, Marian Coada, Sandita Placinta

Abstract


This study aims to reveal the performances parameters, both in terms of quantity and quality, for spinach (Spinacia oleracea) - Matador variety, growth in an aquaponic integrated system, along with stellate sturgeons (A. stellatus) under three crops densities (V1 - 59 crops/m2, V2 – 48 crops/m2 and V3 – 39 crops/m2), by using hydroton as growing substrate, under a continuous flow hydraulic regime. The experiment was run in triplicate for each one of the three variants. The water quality was monitored and a series of growth parameters were determined, as follows: leaf area index (LAI), relative growth rate (RGR), average net assimilation rate (NAR), mean leaf area ratio (LAR) and crop growth rate (CGR). Also the concentration of chlorophyll a, b, carotenoids, ash and dry matter for spinach leaf, from each of the three experimental variants was determined and compared with the one of marketable spinach, growth conventional, in soil. It can be concluded that statistical significant differences (p<0.05) were recorded in terms of growth performance and crops quality, between the experimental variants. Also the quality of spinach grown in aquaponic conditions, by using effluent derived from stellate sturgeon intensive aquaculture is similar to that of the marketable spinach, growth conventional.

Keywords


aquaponic system; crop densities; chlorophyll; relative growth rate; spinach; water quality.

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References


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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

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ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
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