ARGEMONE MEXICANA’S LEAF CRUDE EXTRACT SUPPRESSES PHASEOLUS VULGARIS AND ZEA MAYS GERMINATION AND GROWTH

Fredrick Ojija ()
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Fredrick Ojija: Department of Earth Sciences, Mbeya University of Science and Technology, P.O. Box 131, Mbeya, Tanzania

Tropical Agroecosystems (TAEC), 2023, vol. 4, issue 2, 58-64

Abstract: The Argemone mexicana plant species is invading many habitats in Tanzania. Nevertheless, there have not been many studies to assess how it affects crops. In petri dishes and pot experiments, we investigated the suppressive effects of A. mexicana on Phaseolus vulgaris and Zea mays germination and seedling growth. Different concentrations of A. mexicana leaf (AmL) crude extract was applied to the seeds and seedlings of P. vulgaris and Z. mays. At higher concentrations (>70%), AmL crude extract concentrations reduced the germination and growth of P. vulgaris and Z. mays seeds. The fresh biomass, root lengths, stem diameters, and heights of P. vulgaris seedlings were reduced at higher concentrations (>75%) of AmL, which had a negative impact on their growth vigour. Although this study shows that P. vulgaris and Z. mays germination and growth were inhibited by A. mexicana crude extract, field research experiments should investigate the suppressive effects of this invasive weed on native plant species. The study recommends further management of A. mexicana to protect native biodiversity. It is expected that these results will be helpful in developing policies and programs for managing invasive plants while taking into account the effects on people’s livelihoods.

Keywords: Agriculture; Allelochemicals; Allelopathy; Crops; Management; Weeds (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbtaec:v:4:y:2023:i:2:p:58-64

DOI: 10.26480/taec.02.2023.58.64

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