Abstract Detail

Physiology & Ecophysiology

Ade-Ademilua, Omobolanle [1], Olanrewaju, Gbolaga [2].

Aquaponics in Nigeria: I. Case study of Celosia argentea, Corchorus olitorius and Ocimum gratissimum.

This study compares the effect of aquaponics in growing local vegetables in Nigeria as opposed to traditional soil based farming systems. This was done by comparing the vegetative growth pattern (plant height, number and area of leaves, fresh weight and dry weight), nutritional composition and phytochemical content of Celosia argentea, Corchorus olitorius and Ocimum gratissimum grown in aquaponics, NPK amended soil and unamended loamy soil. Plants grown in NPK amended soil had the highest vegetative growth (fresh and dry weights, plant height, number and total area of leaves) while there was no significant difference (p>0.05) in the vegetative growth of plants grown in Aquaponics and unamended soil. The three plant species had significantly higher (p< 0.05) carbohydrate and protein in unamended loamy soil and the aquaponic system than in NPK amended soil while the crude fibre, crude fat and ash were species dependent. However, with exception of O. gratissimum, plants grown in NPK amended soil had significantly higher (p< 0.05) concentration of alkaloid, saponins, flavonoids and tannin than plants grown in aquaponics or unamended loamy soil; and no significant difference between the latter. The results of the study show that the three plant species will do well under aquaponics (soilless farming) and results are similar with growing in loamy soil (conventional soil system) however, not as well as where soil is supplemented with inorganic fertilizer.

1 - University of Lagos, Department of Botany, Faculty of Science, Akoka-Yaba, Lagos, 2341, Nigeria
2 - University of Lagos, Department of Botany, Department of Botany, Faculty of Science, University of Lagos, Akoka-Yaba, Lagos, 2341, Nigeria

Keywords:
Aquaponics
NPK amended soil
Celosia argentea
Corchorus olitorius
Ocimum gratissimum
nutritional composition
phytochemical content.

Presentation Type: Oral Paper
Session: 39, Ecophysiology
Location: 114/Mayo Civic Center
Date: Wednesday, July 25th, 2018
Time: 11:30 AM
Number: 39014
Abstract ID:155
Candidate for Awards:None