SOWING DEPTH AND LIGHT INTENSITY IN THE EMERGENCE AND DEVELOPMENT OF MONOCOTYLEDONOUS WEEDS

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorTechnology College of the State of São Paulo-Capão Bonito-
Autor(es): dc.contributorState University of Mato Grosso-
Autor(es): dc.creatorMarques, Ricardo Fagundes-
Autor(es): dc.creatorSouza, Guilherme Sasso Ferreira-
Autor(es): dc.creatorPereira, Maria Renata Rocha-
Autor(es): dc.creatorMarchi, Sidnei Roberto-
Autor(es): dc.creatorMartins, Cibele Chalita-
Autor(es): dc.creatorMartins, Dagoberto-
Data de aceite: dc.date.accessioned2025-08-21T22:03:54Z-
Data de disponibilização: dc.date.available2025-08-21T22:03:54Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-02-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.14393/BJ-v38n0a2022-60820-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249198-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249198-
Descrição: dc.descriptionThis study aimed to evaluate the effects of different sowing depths and light intensities on the emergence and development of the monocot weed species, Urochloa decumbens and Cenchrus echinatus, under field conditions. Each species constituted an experiment, and the experimental design was completely randomized with four replicates. The treatments were arranged in a 6 x 4 factorial scheme, with six sowing depths (0.5, 1.0, 2.0, 4.0, 8.0, and 12.0 cm) associated with four solar radiation intensities (100%, 70%, 50%, and 30%) obtained through the use of shading screens. Seedling emergence capacity was evaluated daily to obtain the emergence percentage and speed index. Plant height, floral induction time, and plant dry matter at flowering were measured. Even when subjected to different solar radiation intensities, U. decumbens and C. echinatus seedlings emerged at all the sowing depths. Sowing between 2.0-and 4.0-cm depths favored the emergence of seedlings of U. decumbens and C. echinatus. However, sowing at 12-cm depth reduced the emergence of both species regardless of the solar radiation intensity. Urichloa decumbens plants grown under conditions of greater shading showed the lowest values of height and dry matter accumulation during flowering. High levels of shading facilitated only the etiolation of C. echinatus plants. Increased shading flowering time in both species compared to full sunlight.-
Descrição: dc.descriptionDepartment of Plant Science São Paulo State University, São Paulo-
Descrição: dc.descriptionDepartment of Forestry Technology College of the State of São Paulo-Capão Bonito, São Paulo-
Descrição: dc.descriptionDepartment of Agronomy State University of Mato Grosso, Mato Grosso-
Descrição: dc.descriptionDepartment of Plant Science São Paulo State University, São Paulo-
Idioma: dc.languageen-
Relação: dc.relationBioscience Journal-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrightness-
Palavras-chave: dc.subjectCenchrus echinatus-
Palavras-chave: dc.subjectField condition-
Palavras-chave: dc.subjectShading-
Palavras-chave: dc.subjectUrochloa decumbens-
Título: dc.titleSOWING DEPTH AND LIGHT INTENSITY IN THE EMERGENCE AND DEVELOPMENT OF MONOCOTYLEDONOUS WEEDS-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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