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- Title
Effect of weed interference in the production components of 'Lucy Brown' american lettuce.
- Authors
Alves de Albuquerque, José de Anchieta; Pinheiro Pereira, Luane; Nascimento de Sousa, Dalhas; Torres de Souza, Leandro; Lopes Monteiro Neto, João Luiz; Santiago Castro, Thaís; de Melo Gonçalves, Anderson Carlos; Soares da Silva, Edgley
- Abstract
One of the main challenges faced by lettuce producers is the interference of weeds which affects crop development and productivity. The aim of this study was to evaluate the occurrence of programmed weeding on the growth and production of Lucy Brown American lettuce. The experiment was carried out between March and May 2017 at the Federal University of Roraima Cauamé campus, in Boa Vista, Roraima, Brazil. The experimental design used was randomized blocks with six treatments, four replications and four lettuce plants per experimental unit. The treatments tested were as follows: 100% weed control (100% WC); weed control 5 days after transplanting (WC 5 DAT); weed control 10 days after transplanting (WC 10 DAT); weed control 15 days after transplanting (WC 15 DAT); weed control 20 days after transplanting (WC 20 DAT) and 100% without weed control (100% WWC). The following variables were evaluated: shoot height, stem height, stem diameter, number of leaves, leaf length, leaf width, root length, shoot fresh weight, total fresh weight, shoot dry weight and productivity. The 'Lucy Brown' lettuce crop must be weedfree after 5 days of transplanting the seedlings to avoid productivity losses. The lack of weed control in the cultivation of 'Lucy Brown' lettuce causes a 71.88% decrease in its productivity.
- Subjects
LETTUCE; WEEDS; WEED control; CROP development; PILOT plants; EXPERIMENTAL design
- Publication
Colloquium Agrariae, 2021, Vol 17, Issue 6, p38
- ISSN
1809-8215
- Publication type
Article
- DOI
10.5747/ca.2021.v17.n6.a467