Fatai Olaitan ALAO
Department of Crop and Environmental Protection, Faculty of Agricultural
Sciences, Ladoke Akintola University of Technology, Ogbomoso –
Nigeria
Funmilayo Grace ONI
Department of Crop and Environmental Protection, Faculty of Agricultural
Sciences, Ladoke Akintola University of Technology, Ogbomoso –
Nigeria
Hakeem Bayonle AMODU
Department of Crop and Environmental Protection, Faculty of Agricultural
Sciences, Ladoke Akintola University of Technology, Ogbomoso –
Nigeria
https://doi.org/10.47743/jpd.2025.32.1.968
Keywords: Azadirachta indica, Okra,
Petiveria alliacea, phytochemical compounds, proximate
contents.
Abstract: At Ladoke Akintola University of Technology,
Teaching and Research Farm, Ogbomoso, we conducted this experiment
during the major planting seasons of 2019 and 2020 to determine
the effects of Petiveria alliacea and Azadirachta
indica extracts as botanical insecticides and synthetic insecticides
(cypermethrin and dichlorvos) on the yield parameters, proximate,
phytochemical, and mineral contents of okra. We included untreated
plants in the experiment for comparison. We arranged the treatments
in a randomized complete block design, replicating each treatment
three times. We collected data on the plant height, leaf area,
and yield, proximate, phytochemical, and mineral contents of the
harvested okra fruits. The results revealed that cypermethrin
and P. alliacea extracts had a higher okra plant height
(36.5 cm), but all the treatments had the same effects on leaf
area. However, tested plant extracts and synthetic insecticides
produced the same okra fruit yield. Harvested okra fruits from
plants treated with dichlorvos had the highest proximate contents,
followed by P. alliacea and A. indica extracts.
Meanwhile, okra fruits from plants treated with P. alliacea
extracts had the highest phytochemical contents (5.2 mg/100 g),
but okra fruits from A. indica and P. alliacea
had the highest mineral contents (234.1 to 231.5 mg/100 g). Therefore,
we can use the two tested plant extracts as stimulants for okra
plant growth and nutritional enhancers.
How to cite this article:
ALAO F. O., ONI F. G. & AMODU H. B. 2025. Yield parameters
of okra (Abelmoschus esculentus) plant and nutritional contents
of the harvested okra fruits as influenced by the application
of plant extracts and synthetic insecticides. J. Plant Develop.
32: 133-142.
https://doi.org/10.47743/jpd.2025.32.1.968
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