Banca de QUALIFICAÇÃO: GIOVANNA EMANUELLE GONÇALVES MARIUCCI

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : GIOVANNA EMANUELLE GONÇALVES MARIUCCI
DATE: 22/07/2022
TIME: 13:00
LOCAL: Webconferência
TITLE:

IDENTIFICATION, DESCRIPTION AND MANAGEMENT OF CRANVORANE (Ambrosia sp.)

KEY WORDS:

resistance; chemical control; A. artemisiifolia

PAGES: 30
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Matologia
SUMMARY:

In agricultural production areas, located in the high regions of Paraná (PR), there is a growing report of control failures in cravorana (Ambrosia sp.) biotypes with the use of the herbicide glyphosate. However, local studies with this species are very scarce and there is no information that correctly identifies the species, or that proves its tolerance and alternatives for its control. The objective of this work is to identify, confirm and describe which species of Ambrosia sp. predominant in the region, as well as evaluating the effectiveness of herbicides in its control. Complementarily, the absorption and translocation of glyphosate and 2,4D herbicides will also be evaluated. The experiments are underway at the Federal Rural University of Rio de Janeiro in Seropédica/RJ and in agricultural areas in the regions of Guarapuava and Ponta Grossa/PR. For the morphological identification of the species, samples of whole plants and inflorescences were collected in the field. An anatomical characterization of the species will still be carried out. For the tolerance test, different doses of glyphosate will be evaluated in 10 different populations collected in the study regions in PR. To evaluate the management and control options, mixtures of herbicides (systemic and contact) applied in pre and post-emergence of the weed are being evaluated, in two field trials. In the end, the variables evaluated will be: % of control and shoot dry mass (MSPA). For the evaluation of absorption and translocation, the herbicides glyphosate and 2,4-D radiolabeled will be used, following the methodology of the Laboratory of Ecotoxicology of CENA/USP. Data will be subjected to analysis of variance p≤0.05); and if significant, the means will be compared by Tukey's test at 5% probability. It is expected that the identification, description and alternatives of
The managements carried out help in the efficient control of the Ambrosia sp. species, contributing to the recommendation of a management proposal for these species in the field. It is also expected to understand the dynamics of absorption and translocation of the herbicides glyphosate and 2,4-D to characterize the tolerance of these species to these herbicides.

BANKING MEMBERS:
Presidente - 2466219 - CAMILA FERREIRA DE PINHO
Interno - 1905333 - AROLDO FERREIRA LOPES MACHADO
Externo à Instituição - ANDERSON LUIS NUNES - IFRS
Externa à Instituição - CRISTINA MOLL HUTHER - UFF