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Ikechukwu-edeh, C. E.
Department of Agricultural and Bio-resources Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
Ndukwu, M. C.
Department of Agricultural and Bio-resources Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
Ahaneku, I. E.
Department of Agricultural and Bio-resources Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria
ABSTRACT
Irrigation water conservation has become a growing
concept in the agricultural community, hence, the introduction of water stress
in plants to conserve water in crop production. The experiment was conducted in
a solar greenhouse to investigate the influence of water stress on the
biochemical properties of the Nigerian red scotch bonnet peppers grown in
sandstone, clay shale and coastal plain soils (at 100% and 50% Crop Water
Requirement) in comparison with rain-fed peppers grown on same soils. The
biochemical analysis of the peppers showed that while the 100% CWR peppers had
higher content values of (281-304)mg/100g, (33.6-34.7)µg/100g,
(70.81-75.67)mgQE/g, (118.51-121.97)mg/g and (99.8-101.9)GAE/g for capsaicin,
vitamin A. Total flavonoid content, vitamin C and total phenolic contents ,
respectively, against the 50% CWR irrigated peppers that had (250-302)mg/100g,
(33.11-34.3)µg/100g, (70.22-75.04)mgQE/g, (117.1-112.1)mg/g and
(99.31-101.6)GAE/g, respectively for the same nutrients. The 50% CWR irrigated
pepper biochemical content values were, however, higher than that of the
control (rain-fed) peppers which were (234-250)mg/100g, (24.56-28.54)µg/100g,
(42.87-53.04)mgQE/g, and (95.3-103.44)mg/g, respectively for capsaicin, vitamin
A, total flavonoid content and vitamin C. The rain-fed pepper only had total
phenolic contents (111.51-129.89)GAE/g which were 21% and 16% higher than that
of the 100% CWR and 50% CWR irrigated peppers, respectively.
Keywords: Irrigation, capsaicin, vitamin A, vitamin C, Phenolic content, Flavonoid content.
https://doi.org/10.33922/j.ujet_v10i1_24
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Published
Tuesday, April 23, 2024
Issue
Vol. 10 No. 1, June 2024
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
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