Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize
Fuente:
Redalyc
Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual de Maringá
2018
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1876467932734685184 |
|---|---|
| author | Nayara Parisoto Boiago |
| author_facet | Nayara Parisoto Boiago |
| contents | Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize Nayara Parisoto Boiago Andréa Maria Teixeira Fortes Daiane Maria Pilatti Paulo Sérgio Siberti da Silva Biología Zea mays allelopathy Lactuca sativa allelochemicals chemical ecology This study aimed to analyse the allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry leaves on the germination of lettuce and the initial development of maize. Brazilian cherry leaves were used to prepare a fresh aqueous extract (200 g L-1) and an infused extract (100 g L-1), which were diluted to concentrations of 0.4, 0.8, 1.2, 1.6 or 2.0% w/v. The variables evaluated in lettuce were the germination rate (GR), germination time index (GTI), germination speed index (GSI) and root length (RL). To determine the effect on the initial development of maize, we measured the shoot (SL) and root (RL) length. The experimental design included a factorial 2 × 5 design (two extracts and five concentrations), in addition to a control treatment (no extract). In general, the allelopathic bioactivity differed between the fresh and infused extracts. The fresh extract was more phytotoxic for the GR and RL of lettuce. Some beneficial results were observed for the infused extract, including an increase in the RL of lettuce and SL of maize. These effects were dependent on the extract concentration. Thus, there is evidence that Brazilian cherry extracts have allelopathic bioactivity. 2018 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187158163049 https://www.redalyc.org/journal/1871/187158163049/ https://www.redalyc.org/journal/1871/187158163049/html/ https://www.redalyc.org/journal/1871/187158163049/187158163049.epub https://www.redalyc.org/journal/1871/187158163049/movil https://doi.org/10.4025/actascibiolsci.v40i1.40972 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Vol.40 |
| format | Artículo científico |
| id | redalyc_187158163049 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize Nayara Parisoto Boiago Biología Zea mays allelopathy Lactuca sativa allelochemicals chemical ecology Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize Nayara Parisoto Boiago Andréa Maria Teixeira Fortes Daiane Maria Pilatti Paulo Sérgio Siberti da Silva Biología Zea mays allelopathy Lactuca sativa allelochemicals chemical ecology This study aimed to analyse the allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry leaves on the germination of lettuce and the initial development of maize. Brazilian cherry leaves were used to prepare a fresh aqueous extract (200 g L-1) and an infused extract (100 g L-1), which were diluted to concentrations of 0.4, 0.8, 1.2, 1.6 or 2.0% w/v. The variables evaluated in lettuce were the germination rate (GR), germination time index (GTI), germination speed index (GSI) and root length (RL). To determine the effect on the initial development of maize, we measured the shoot (SL) and root (RL) length. The experimental design included a factorial 2 × 5 design (two extracts and five concentrations), in addition to a control treatment (no extract). In general, the allelopathic bioactivity differed between the fresh and infused extracts. The fresh extract was more phytotoxic for the GR and RL of lettuce. Some beneficial results were observed for the infused extract, including an increase in the RL of lettuce and SL of maize. These effects were dependent on the extract concentration. Thus, there is evidence that Brazilian cherry extracts have allelopathic bioactivity. 2018 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187158163049 https://www.redalyc.org/journal/1871/187158163049/ https://www.redalyc.org/journal/1871/187158163049/html/ https://www.redalyc.org/journal/1871/187158163049/187158163049.epub https://www.redalyc.org/journal/1871/187158163049/movil https://doi.org/10.4025/actascibiolsci.v40i1.40972 en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Vol.40 |
| title | Allelopathic bioactivity of fresh and infused aqueous extracts of Brazilian cherry (Eugenia uniflora L.) on lettuce and maize |
| topic | Biología Zea mays allelopathy Lactuca sativa allelochemicals chemical ecology |
| url | https://www.redalyc.org/articulo.oa?id=187158163049 https://www.redalyc.org/journal/1871/187158163049/ https://www.redalyc.org/journal/1871/187158163049/html/ https://www.redalyc.org/journal/1871/187158163049/187158163049.epub https://www.redalyc.org/journal/1871/187158163049/movil https://doi.org/10.4025/actascibiolsci.v40i1.40972 |