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- Title
Respostas fisiológicas e morfoanatômicas de Bowdichia virgilioides Kunth. (Fabaceae) submetidas ao herbicida paraquat.
- Authors
Augusta de Oliveira, Ana Paula; Carlos Costa, Alan; Crispim Filho, Ailton Jose; Cândido de Freitas, Dhesy Allax; Ferreira Silva, Kellen Lagares
- Abstract
Agribusiness is on the increase and evidently the use of herbicides too. The physiological and morphoanatomic responses in Bowdichia virgilioides Kunth (Fabaceae) are evaluated when exposed to paraquat herbicide in green house conditions and possible response patterns of the species identified. The above will furnish subsidies for the study of the species in areas reached by the herbicide and/or those with the same mechanism. Design comprised randomized blocks with eight herbicide doses: 25, 50, 100, 200, 400, 800 and 1200 g i.a ha-1 and control (0), with four replications for each dose. Gas exchange, emission of chlorophyll a fluorescence, contents of chloroplasticidic pigments, membrane permeability and visual and anatomic analyses were undertaken. Results showed that paraquat is phytotoxic for B. virgilioides, since even in small doses the herbicide affected all analyzed parameters. Death of plants occurred with higher dose rates. The presence of phenolic compounds was also confirmed. Responses may be used as diagnostic tools for the herbicide's effects on young plants of the species in vegetal fragments applied by herbicide spray.
- Publication
Revista em Agronegócio e Meio Ambiente, 2022, Vol 15, Issue 3, p1
- ISSN
1981-9951
- Publication type
Academic Journal
- DOI
10.17765/2176-9168.2022v15n3e9411