Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa

Weeds with allelopathic effect have been reported to cause significant damage in agriculture particularly in smallholder farming systems. This study assessed the allelopathic effects of different concentrations of crude extract of a noxious weed Sphaeranthus suaveolens on seed germination and seedli...

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Main Authors: Hudson C. Laizer, Musa N. Chacha, Patrick A. Ndakidemi
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Agriculture
Online Access:http://dx.doi.org/10.1155/2021/8882824
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author Hudson C. Laizer
Musa N. Chacha
Patrick A. Ndakidemi
author_facet Hudson C. Laizer
Musa N. Chacha
Patrick A. Ndakidemi
author_sort Hudson C. Laizer
collection DOAJ
description Weeds with allelopathic effect have been reported to cause significant damage in agriculture particularly in smallholder farming systems. This study assessed the allelopathic effects of different concentrations of crude extract of a noxious weed Sphaeranthus suaveolens on seed germination and seedling growth of Phaseolus vulgaris and Oryza sativa by examining germination, seedling height, and total chlorophyll content after seven and fourteen days of crude extract treatment, respectively. Results showed that seed germination and seedling growth were significantly (p<0.001) decreased with increase in concentration of crude extract, signifying concentration dependency. Highest concentration (100%) of S. suaveolens crude extracts resulted in 90% and 100% inhibition of P. vulgaris and O. sativa seed germination, respectively. Chlorophyll content, fresh weight, and root and shoot length of both P. vulgaris and O. sativa were also significantly (p<0.001) affected by highest concentration (100%) of S. suaveolens crude extracts. Results from this study suggest that the extract of S. suaveolens contains water-soluble allelochemicals which significantly reduce growth and productivity of P. vulgaris and O. sativa.
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spelling doaj-art-6aed2eb322aa485588b30b9a1730a1532025-02-03T05:57:50ZengWileyAdvances in Agriculture2356-654X2314-75392021-01-01202110.1155/2021/88828248882824Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativaHudson C. Laizer0Musa N. Chacha1Patrick A. Ndakidemi2Department of Sustainable Agriculture and Biodiversity Conservation, The Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. Box 447, Arusha 23311, TanzaniaDepartment of Sustainable Agriculture and Biodiversity Conservation, The Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. Box 447, Arusha 23311, TanzaniaDepartment of Sustainable Agriculture and Biodiversity Conservation, The Nelson Mandela African Institution of Science and Technology (NM-AIST), P.O. Box 447, Arusha 23311, TanzaniaWeeds with allelopathic effect have been reported to cause significant damage in agriculture particularly in smallholder farming systems. This study assessed the allelopathic effects of different concentrations of crude extract of a noxious weed Sphaeranthus suaveolens on seed germination and seedling growth of Phaseolus vulgaris and Oryza sativa by examining germination, seedling height, and total chlorophyll content after seven and fourteen days of crude extract treatment, respectively. Results showed that seed germination and seedling growth were significantly (p<0.001) decreased with increase in concentration of crude extract, signifying concentration dependency. Highest concentration (100%) of S. suaveolens crude extracts resulted in 90% and 100% inhibition of P. vulgaris and O. sativa seed germination, respectively. Chlorophyll content, fresh weight, and root and shoot length of both P. vulgaris and O. sativa were also significantly (p<0.001) affected by highest concentration (100%) of S. suaveolens crude extracts. Results from this study suggest that the extract of S. suaveolens contains water-soluble allelochemicals which significantly reduce growth and productivity of P. vulgaris and O. sativa.http://dx.doi.org/10.1155/2021/8882824
spellingShingle Hudson C. Laizer
Musa N. Chacha
Patrick A. Ndakidemi
Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
Advances in Agriculture
title Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
title_full Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
title_fullStr Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
title_full_unstemmed Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
title_short Allelopathic Effects of Sphaeranthus suaveolens on Seed Germination and Seedling Growth of Phaseolus vulgaris and Oryza sativa
title_sort allelopathic effects of sphaeranthus suaveolens on seed germination and seedling growth of phaseolus vulgaris and oryza sativa
url http://dx.doi.org/10.1155/2021/8882824
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AT musanchacha allelopathiceffectsofsphaeranthussuaveolensonseedgerminationandseedlinggrowthofphaseolusvulgarisandoryzasativa
AT patrickandakidemi allelopathiceffectsofsphaeranthussuaveolensonseedgerminationandseedlinggrowthofphaseolusvulgarisandoryzasativa