Rooting of coffee cuttings immersed in tiririca extract
The cultivation of coffee trees plays an important role in Brazilian agriculture and economy. However, to increase productivity healthy plants and vigorous seedlings are needed. Vegetative propagation is an excellent option because the new plant maintains the genetic characteristics of the parent pl...
| Autor principal: | Dias, Jairo Rafael Machado |
|---|---|
| Outros Autores: | Silva, Edilaine D.Avila da, Gonçalves, Gerlândio Suassuna, Silva, José Ferreira da, Souza, Emanuel Fernando Maia da, Elvino, Ferreira,, Stachiw, Rosalvo |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Coffee Science
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17983 |
| id |
oai:repositorio:1-17983 |
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dspace |
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oai:repositorio:1-17983 Rooting of coffee cuttings immersed in tiririca extract Enraizamento de estacas de cafeeiro imersas em extrato aquoso de tiririca Dias, Jairo Rafael Machado Silva, Edilaine D.Avila da Gonçalves, Gerlândio Suassuna Silva, José Ferreira da Souza, Emanuel Fernando Maia da Elvino, Ferreira, Stachiw, Rosalvo The cultivation of coffee trees plays an important role in Brazilian agriculture and economy. However, to increase productivity healthy plants and vigorous seedlings are needed. Vegetative propagation is an excellent option because the new plant maintains the genetic characteristics of the parent plant. To improve rooting the use of exogenous hormones is a technique widely used in this type of propagation. In this case, the hormones used are indole-butyric acid (IBA) and indole acetic acid (IAA). The purple nutsedge, a weed of difficult control, has high levels of IBA and IAA. The aim of this study was to evaluate different concentrations and immersion times of aqueous extract of purple nutsedge roots in coffee seedlings. The experimental design was completely randomized with four replicates and 10 cuttings per plot in a factorial scheme, which included four concentrations (0, 400, 800 and 1200 g L -1) of purple nutsedge extracts and two exposure times (20 and 120 seconds). After 100 days of the planting the following characteristics were analyzed: volume and number of roots, plant height, number of leaves, and dry matter yield. The aqueous extract of C. rotundus showed no effect on the number and volume of roots. However the other evaluated characteristics were stimulated or inhibited by concentrations of the extract. The immersion time of the cuttings can induce roots growth of the cuttings, but 120 seconds of immersion showed symptoms of toxicity. 2020-06-15T21:50:40Z 2020-06-15T21:50:40Z 2012 Artigo https://repositorio.inpa.gov.br/handle/1/17983 pt_BR Volume 7, Número 3, Pags. 259-266 Restrito Coffee Science |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| description |
The cultivation of coffee trees plays an important role in Brazilian agriculture and economy. However, to increase productivity healthy plants and vigorous seedlings are needed. Vegetative propagation is an excellent option because the new plant maintains the genetic characteristics of the parent plant. To improve rooting the use of exogenous hormones is a technique widely used in this type of propagation. In this case, the hormones used are indole-butyric acid (IBA) and indole acetic acid (IAA). The purple nutsedge, a weed of difficult control, has high levels of IBA and IAA. The aim of this study was to evaluate different concentrations and immersion times of aqueous extract of purple nutsedge roots in coffee seedlings. The experimental design was completely randomized with four replicates and 10 cuttings per plot in a factorial scheme, which included four concentrations (0, 400, 800 and 1200 g L -1) of purple nutsedge extracts and two exposure times (20 and 120 seconds). After 100 days of the planting the following characteristics were analyzed: volume and number of roots, plant height, number of leaves, and dry matter yield. The aqueous extract of C. rotundus showed no effect on the number and volume of roots. However the other evaluated characteristics were stimulated or inhibited by concentrations of the extract. The immersion time of the cuttings can induce roots growth of the cuttings, but 120 seconds of immersion showed symptoms of toxicity. |
| format |
Artigo |
| author |
Dias, Jairo Rafael Machado |
| spellingShingle |
Dias, Jairo Rafael Machado Rooting of coffee cuttings immersed in tiririca extract |
| author2 |
Silva, Edilaine D.Avila da Gonçalves, Gerlândio Suassuna Silva, José Ferreira da Souza, Emanuel Fernando Maia da Elvino, Ferreira, Stachiw, Rosalvo |
| author2Str |
Silva, Edilaine D.Avila da Gonçalves, Gerlândio Suassuna Silva, José Ferreira da Souza, Emanuel Fernando Maia da Elvino, Ferreira, Stachiw, Rosalvo |
| title |
Rooting of coffee cuttings immersed in tiririca extract |
| title_short |
Rooting of coffee cuttings immersed in tiririca extract |
| title_full |
Rooting of coffee cuttings immersed in tiririca extract |
| title_fullStr |
Rooting of coffee cuttings immersed in tiririca extract |
| title_full_unstemmed |
Rooting of coffee cuttings immersed in tiririca extract |
| title_sort |
rooting of coffee cuttings immersed in tiririca extract |
| publisher |
Coffee Science |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17983 |
| _version_ |
1787141782455189504 |
| score |
11.671464 |