Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot

Turnip (Brassica rapa var. rapa L.), beetroot (Beta vulgaris L.) and carrot (Daucus carota L.) are common vegetables in South Africa. The allelopathic potential of aqueous leaf and root extracts of Aloe ferox Mill.- a highly valued medicinal plant- was evaluated against seed germination and seedling...

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Autores principales:	Arowosegbe,Sunday, Afolayan,Anthony J
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2012
Materias:	allelopathy Aloe ferox aqueous extracts intercrops vegetable crops
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400006
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spelling	oai:scielo:S0716-976020120004000062013-03-15Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrotArowosegbe,SundayAfolayan,Anthony J allelopathy Aloe ferox aqueous extracts intercrops vegetable crops Turnip (Brassica rapa var. rapa L.), beetroot (Beta vulgaris L.) and carrot (Daucus carota L.) are common vegetables in South Africa. The allelopathic potential of aqueous leaf and root extracts of Aloe ferox Mill.- a highly valued medicinal plant- was evaluated against seed germination and seedling growth of the three vegetables in Petri dish experiments. The extracts were tested at concentrations of 2, 4, 6, 8, and 10 mg/mL. Leaf extract concentrations above 4 mg/mL inhibited the germination of all the crops, while the root extract had no significant effect on germination irrespective of concentration. Interestingly, the lowest concentration of leaf extract stimulated root length elongation of beetroot by 31.71%. Other concentrations significantly inhibited both root and shoot growth of the vegetable crops except the turnip shoot. The most sensitive crop was carrot, with percentage inhibition ranging from 29.15 to 100% for root and shoot lengths. Lower percentage inhibition was observed for the root extract than the leaf extract against shoot growth of beetroot and carrot. The results from this study suggested the presence of allelochemicals mostly in the leaves of A. ferox that could inhibit the growth of the turnip, beetroot and carrot.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.45 n.4 20122012-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400006en10.4067/S0716-97602012000400006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	allelopathy Aloe ferox aqueous extracts intercrops vegetable crops
spellingShingle	allelopathy Aloe ferox aqueous extracts intercrops vegetable crops Arowosegbe,Sunday Afolayan,Anthony J Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
description	Turnip (Brassica rapa var. rapa L.), beetroot (Beta vulgaris L.) and carrot (Daucus carota L.) are common vegetables in South Africa. The allelopathic potential of aqueous leaf and root extracts of Aloe ferox Mill.- a highly valued medicinal plant- was evaluated against seed germination and seedling growth of the three vegetables in Petri dish experiments. The extracts were tested at concentrations of 2, 4, 6, 8, and 10 mg/mL. Leaf extract concentrations above 4 mg/mL inhibited the germination of all the crops, while the root extract had no significant effect on germination irrespective of concentration. Interestingly, the lowest concentration of leaf extract stimulated root length elongation of beetroot by 31.71%. Other concentrations significantly inhibited both root and shoot growth of the vegetable crops except the turnip shoot. The most sensitive crop was carrot, with percentage inhibition ranging from 29.15 to 100% for root and shoot lengths. Lower percentage inhibition was observed for the root extract than the leaf extract against shoot growth of beetroot and carrot. The results from this study suggested the presence of allelochemicals mostly in the leaves of A. ferox that could inhibit the growth of the turnip, beetroot and carrot.
author	Arowosegbe,Sunday Afolayan,Anthony J
author_facet	Arowosegbe,Sunday Afolayan,Anthony J
author_sort	Arowosegbe,Sunday
title	Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
title_short	Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
title_full	Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
title_fullStr	Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
title_full_unstemmed	Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot
title_sort	assessment of allelopathic properties of aloe ferox mill. on turnip, beetroot and carrot
publisher	Sociedad de Biología de Chile
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602012000400006
work_keys_str_mv	AT arowosegbesunday assessmentofallelopathicpropertiesofaloeferoxmillonturnipbeetrootandcarrot AT afolayananthonyj assessmentofallelopathicpropertiesofaloeferoxmillonturnipbeetrootandcarrot
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Assessment of allelopathic properties of Aloe ferox Mill. on turnip, beetroot and carrot

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