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http://hdl.handle.net/1843/45662| Type: | Artigo de Periódico |
| Title: | Effect of nicosulfuron on chlorophyll content of marandu-grass cultivated in crop-forest-livestock integration systems |
| Authors: | Evander Alves Ferreira Márcia Vitória Santos Leandro Diego Silva Priscila Júnia Rodrigues da Cruz Raul Ribeiro Silveira Igor Costa Freitas Leidivan Almeida Frazão Alcinei Místico Azevedo Gustavo Antônio Mendes Pereira Thiago Gomes dos Santos Braz |
| Abstract: | The aim of this work was to study the effect of sub-doses of herbicide nicosulfuron on the levels of chlorophyll and growth of marandu-grass in an forest-livestock integration system. The treatments consisted of eucalyptus consortium with sorghum (BRS 655 hybrid) and forage Urochloa brizantha cv. Marandu (marandu-grass) at 12×2 and 12×3 m spacings in agroforestry systems, in addition to sorghum + marandu-grass and marandu-grass in monoculture. The doses of nicosulfuron applied at the marandu-grass were 0, 15 and 30 g ha-1. At 30 and 120 days after the application of nicosulfuron, chlorophyll a and chlorophyll b were measured usinf a portable chlorophyll meter, with six measurements per plant. Afterwards, the total chlorophyll content and chlorophyll a/b were calculated. We also measured the mass of the total dry matter of marandu-grass and growth rate of the culture. Marandu-grass plants cultivated in monoculture showed higher quantities of chlorophyll and the highest growth rates. The levels of chlorophyll a, b and chlorophyll a/b and the growth rate of marandu grass were similar between systems integrated with eucalyptus (12x2 and 12x3 m). The increase of herbicide dose negatively influenced on chlorophyll content in marandu-grass in all treatments evaluated. The use of nicosulfuron in doses of 25 and 50 g L-1 reduced the growth rate of marandu grass only when grown in monoculture. |
| Subject: | Plantas forrageiras Capim-braquiaria Plantas - Efeito dos herbicidas Clorofila - Análise Agrossilvicultura |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | 10.21475/ajcs.20.14.12.2631 |
| URI: | http://hdl.handle.net/1843/45662 |
| Issue Date: | 2020 |
| metadata.dc.url.externa: | https://www.cropj.com/december2020.html |
| metadata.dc.relation.ispartof: | Australian Journal of Crop Science |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Effect of nicosulfuron on chlorophyll content of marandu-grass cultivated in crop-forest-livestock integration systems.pdf | 815.31 kB | Adobe PDF | View/Open |
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