Data/hora: 07/06/2024 00:28:10

Provedor de dados: | 109
País: | Colombia
Título: | Leaf anatomy of cassava ( Manihot esculenta Crantz. cv. IAC-12) after herbicides application to control weeds in Minas Gerais, Brazil
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.
Data: | 2017-09-01
Ano: | 2017
Palavras-chave: | Post-emergence herbicides; Selectivity; Tissue thickness and proportion; Visual toxicity; Weed chemical management.
Resumo: | 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 cassava plants (cultivar IAC-12), exhibited changes in leaf anatomy in response to herbicide application even on cassava leaves without no visual toxicity symptoms. The products caused alterations both in tissue thickness as in tissue proportion in the leaf blade. For the fluazifop, a eudicotyledonous selective herbicide, changes were observed in tissue thickness and proportion of leaf blade, even without any visual toxicity detected. Cassava plants (IAC-12), showed structural changes in leaf anatomy in response to application of herbicides. The leaf anatomy of cassava cv. IAC-12, can be used to indicate the herbicide effect on cassava (Manihot esculenta Crantz.cv. IAC-12) plants.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300385
Editor: | Universidad Nacional de Colombia
Relação: | 10.15446/acag.v66n3.56055
Formato: | text/html
Fonte: | Acta Agronómica  v.66 n.3 2017
Fonte: | info:eu-repo/semantics/openAccess