Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina

Ethanol extracts obtained from aerial parts of 71 native plants from Central Argentina were tested for their herbicidal activity in germination assays on Avena sativa and Raphanus sativus. Extracts derived from Angelphytum aspilioides, Baccharis salicifolia, Cortaderia rudiuscula, Eupatorium hookeri...

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Autores principales: Palacios, Sara María, Del Corral, Soledad, Carpinella, María Cecilia, Ruiz, Gustavo Miguel
Formato: Artículo PeerReviewed
Lenguaje:Español
Publicado: 2010
Materias:
QD Química
Acceso en línea:http://pa.bibdigital.ucc.edu.ar/4967/1/A_Palacios.pdf
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Producción Académica Universidad Católica de Córdoba (UCCor) de Universidad Católica de Córdoba
id I38-R144-4967
record_format dspace
spelling I38-R144-49672025-10-30T13:31:35Z http://pa.bibdigital.ucc.edu.ar/4967/ Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina Palacios, Sara María Del Corral, Soledad Carpinella, María Cecilia Ruiz, Gustavo Miguel QD Química Ethanol extracts obtained from aerial parts of 71 native plants from Central Argentina were tested for their herbicidal activity in germination assays on Avena sativa and Raphanus sativus. Extracts derived from Angelphytum aspilioides, Baccharis salicifolia, Cortaderia rudiuscula, Eupatorium hookerianum and Mandevilla laxa, showed 100% inhibition of the germination of A. sativa at 10mg/ml. In the case of R. sativus, extracts from Achyrocline tomentosa, Angelphytum aspilioides, B. salicifolia, Melissa officinalis, Minthostachys verticillata, Ophryosporus charua and Podranea ricasoliana, applied at 10mg/ml, showed 100% germination inhibition. For each extract, the mean effective concentrations that inhibit germination (ECg50), root (ECr50) and shoot (ECs50) growth were determined. According to these values and the extract yield, an index was calculated in order to establish a ranking of the most active plants. For inhibition of A. sativa, the ranking was B. salicifolia>A. aspilioides>C. rudiuscula>M. laxa>E. hookerianum. The ECg50, ECr50 and ECs50 of B. salicifolia against A. sativa were 0.36, 0.88 and 0.91mg/ml, respectively, showing more activity than that of 2,4-D as a germination inhibitor and 44 and 1.1 times less active than 2,4-D as a root and shoot inhibitor, respectively. The ranking for the inhibition of R. sativus was O. charua>A. aspilioides>P. ricasoliana>B. salicifolia>A. tomentosa>M. officinalis>M. verticillata. The O. charua extract presented ECg50, ECr50 and ECs50 of 1.04, 1.04 and 1.49mg/ml, respectively. According to the obtained results, the extracts of B. salicifolia and of A. aspilioides were the only ones capable of inhibiting the germination and growth of both test species. 2010-12-31 Artículo PeerReviewed application/pdf spa http://pa.bibdigital.ucc.edu.ar/4967/1/A_Palacios.pdf Palacios, Sara María, Del Corral, Soledad, Carpinella, María Cecilia ORCID: https://orcid.org/0000-0001-5553-1851 <https://orcid.org/0000-0001-5553-1851> and Ruiz, Gustavo Miguel ORCID: https://orcid.org/0000-0002-0571-3224 <https://orcid.org/0000-0002-0571-3224> (2010) Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina. Industrial Crops and Products, 32 (3). pp. 674-677. ISSN 09266690 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.indcrop.2010.05.004
institution Universidad Católica de Córdoba
institution_str I-38
repository_str R-144
collection Producción Académica Universidad Católica de Córdoba (UCCor)
language Español
orig_language_str_mv spa
topic QD Química
spellingShingle QD Química
Palacios, Sara María
Del Corral, Soledad
Carpinella, María Cecilia
Ruiz, Gustavo Miguel
Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
topic_facet QD Química
description Ethanol extracts obtained from aerial parts of 71 native plants from Central Argentina were tested for their herbicidal activity in germination assays on Avena sativa and Raphanus sativus. Extracts derived from Angelphytum aspilioides, Baccharis salicifolia, Cortaderia rudiuscula, Eupatorium hookerianum and Mandevilla laxa, showed 100% inhibition of the germination of A. sativa at 10mg/ml. In the case of R. sativus, extracts from Achyrocline tomentosa, Angelphytum aspilioides, B. salicifolia, Melissa officinalis, Minthostachys verticillata, Ophryosporus charua and Podranea ricasoliana, applied at 10mg/ml, showed 100% germination inhibition. For each extract, the mean effective concentrations that inhibit germination (ECg50), root (ECr50) and shoot (ECs50) growth were determined. According to these values and the extract yield, an index was calculated in order to establish a ranking of the most active plants. For inhibition of A. sativa, the ranking was B. salicifolia>A. aspilioides>C. rudiuscula>M. laxa>E. hookerianum. The ECg50, ECr50 and ECs50 of B. salicifolia against A. sativa were 0.36, 0.88 and 0.91mg/ml, respectively, showing more activity than that of 2,4-D as a germination inhibitor and 44 and 1.1 times less active than 2,4-D as a root and shoot inhibitor, respectively. The ranking for the inhibition of R. sativus was O. charua>A. aspilioides>P. ricasoliana>B. salicifolia>A. tomentosa>M. officinalis>M. verticillata. The O. charua extract presented ECg50, ECr50 and ECs50 of 1.04, 1.04 and 1.49mg/ml, respectively. According to the obtained results, the extracts of B. salicifolia and of A. aspilioides were the only ones capable of inhibiting the germination and growth of both test species.
format Artículo
PeerReviewed
author Palacios, Sara María
Del Corral, Soledad
Carpinella, María Cecilia
Ruiz, Gustavo Miguel
author_facet Palacios, Sara María
Del Corral, Soledad
Carpinella, María Cecilia
Ruiz, Gustavo Miguel
author_sort Palacios, Sara María
title Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
title_short Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
title_full Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
title_fullStr Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
title_full_unstemmed Screening for natural inhibitors of germination and seedling growth in native plants from Central Argentina
title_sort screening for natural inhibitors of germination and seedling growth in native plants from central argentina
publishDate 2010
url http://pa.bibdigital.ucc.edu.ar/4967/1/A_Palacios.pdf
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AT carpinellamariacecilia screeningfornaturalinhibitorsofgerminationandseedlinggrowthinnativeplantsfromcentralargentina
AT ruizgustavomiguel screeningfornaturalinhibitorsofgerminationandseedlinggrowthinnativeplantsfromcentralargentina
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