Consulta: creatorFacets:"Pereira,Gustavo Antônio Mendes"
Registros recuperados: 4
Data/hora: 07/06/2024 01:29:45

Leaf anatomy of cassava ( Manihot esculenta Crantz. cv. IAC-12) after herbicides application to control weeds in Minas Gerais, Brazil
Provedor de dados: 109
Autores: Silva,Daniel Valadão; Cabral,Cassia Michelle; Costa,Sarah Stéphane Diamantina da; Souza,Matheus de Freitas; Ferreira,Evander Alves; Braga,Renan Rodrigues; Pereira,Gustavo Antônio Mendes; Santos,and José Barbosa dos.
Abstract Micro-morphological changes precede the appearance of visible damage after herbicide application and are essential in providing data for the safe recommendation in chemical management of weeds. Therefore, the aim of this research was to verify the anatomical changes of leaf tissue caused by application of herbicides in cassava (Manihot esculenta Crantz.cv. IAC-12). A greenhouse experiment was conducted with post-emergence herbicides treatments as follows: nicossulfuron (60 g a.i ha-1), fluazifop (250 g a.i ha-1), fomesafem (250 g a.i ha-1), metribuzin (480 g a.i ha-1), oxyfluorfen (720 g a.i ha-1) and the mixture fluazifop + fomesafen (200 + 250 g a.i ha-1), and an untreated control, respectively. The results obtained have allowed to affirm the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Post-emergence herbicides; Selectivity; Tissue thickness and proportion; Visual toxicity; Weed chemical management.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300385

Action of Canavalia ensiformis in remediation of contaminated soil with sulfentrazone
Provedor de dados: 53
Autores: Madalão,João Carlos; Souza,Matheus Freitas de; Silva,Alberto Antônio; Silva,Daniel Valadão; Jakelaitis,Adriano; Pereira,Gustavo Antônio Mendes.
ABSTRACT This study evaluated the jack bean (Canavalia ensiformis) as a potential remediator of sulfentrazone in the soil. The experiment was conducted under field conditions in a complete randomised block design. The treatments consisted of soils with and without herbicide application as well as the absence and presence of C. ensiformis cultivation associated with incorporation into the soil or the removal of shoots of C. ensiformis. Sorghum was planted as a bioindicator to evaluate the remediation efficiency of jack bean. Sulfentrazone application in areas without C. ensiformis cultivation decreased plants stands, productivity, and height of sorghum compared to treatments where C. ensiformis was cultivated. Sorghum cultivated in succession to C....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioremediation; Soil decontamination; Herbicides; Residue; Contamination.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200292

Produtividade e teor de nutrientes do milho em consórcio com braquiária
Provedor de dados: 65
Autores: Silva,Daniel Valadão; Pereira,Gustavo Antônio Mendes; Freitas,Marco Antônio Moreira de; Silva,Antonio Alberto da; Sediyama,Tocio; Silva,Gustavo Soares; Ferreira,Lino Roberto; Cecon,Paulo Roberto.
Nos cultivos consorciados, a competição entre as espécies pelos recursos do meio pode inviabilizar o sistema. A intensidade da interferência de uma espécie sobre a outra, resultante dessa competição, depende da densidade populacional das espécies componentes do sistema. Na busca de melhor entendimento desses efeitos, avaliaram-se os efeitos de densidades de U. brizantha sobre o crescimento da forrageira e a eficiência nutricional e produtividade do milho em sistema consorciado. Os tratamentos foram casualizados em blocos com quatro repetições. O milho DHB 390 RR foi semeado no espaçamento de 0,50m e na população de 60000 plantas ha-1, sendo o plantio da braquiária realizado manualmente na linha de plantio. As avaliações nutricionais foram realizadas aos 60...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Urochloa (syn. Brachiaria); Densidade de semeadura; Integração lavoura-pecuária.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000801394

Physiological quality of bean seeds after application of desiccant herbicides
Provedor de dados: 65
Autores: Rosado,Cecília Brustolini; Pereira,Gustavo Antônio Mendes; Capobiango,Nayara Pereira; Moreira,Renata Pereira Lopes; Freitas,Francisco Cláudio Lopes; Teixeira,Matheus Ferreira França; Silva,Antonio Alberto da.
ABSTRACT:  The application of desiccant herbicides in the bean crop is fundamental in the production of quality seeds, since it anticipates the harvesting season, which makes it possible to obtain seeds in the period of physiological maturation, when they are reported with maximum accumulation of dry matter, high vigor levels and germination percentage. However, there is little information about the ideal application time of these products to obtain beans of high physiological quality. Therefore, the objective of this study was to evaluate the physiological quality of bean seeds after application of desiccant herbicides at different times in preharvest. The experimental design was a randomized complete block design in a 2x3+1 factorial scheme, with four...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diuron; Paraquat; Phaseolus vulgaris; Vigor.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000900201