Photochemical, Anatomical, and Growth Changes in Cassava Cultivars after Application of Post‐Emergent Herbicides

• Autor(a) principal: Dos Santos, Jania Claudia Camilo [UNESP]
• Data de Publicação: 2022
• Outros Autores: Costa, Renato Nunes [UNESP], Silva, Dayane Mércia Ribeiro [UNESP], da Rocha, Dougllas Ferreira, Silva, Lennon Klédson Dos Santos, da Silva, Rudieli Machado [UNESP], Silva, Marcelo de Almeida [UNESP], Pavão, Jessé Marques da Silva Júnior, Silva, José Vieira
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.3390/agriculture12070950; http://hdl.handle.net/11449/242010
• topic: chemical molecules; gas exchange; leaf anatomy; Manihot esculenta Crantz; physiological adaptation

Plants develop a series of adaptive mechanisms capable of tolerating the action of herbicides; however, little is known about the physiological mechanisms developed by cassava. The purpose of this research was to evaluate the influence of post‐emergence herbicides on the physiological and anatomical characteristics of two cassava cultivars subjected to six herbicide treatments. The evaluations occurred at 0, 24, 48, 72, and 168 h after herbicide application. Herbicide application induced changes in the physiological and anatomical leaf profile. These changes were observed through the thickening of the leaf blade midrib caused by the herbicides fomesafen and fenoxaprop‐p‐ethyl in the Campinas cultivar. On the other hand, the leaves of the Sergipana cultivar showed a reduction in the thickness of the midrib tissues. Minor effects on cassava plants were observed with the herbicide fluazifop‐p‐butyl.