Banca de QUALIFICAÇÃO: ANA BEATRIZ AMARAL DE MACEDO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : ANA BEATRIZ AMARAL DE MACEDO
DATE: 14/12/2022
TIME: 08:30
LOCAL: Sala 4 - IA/DFITO
TITLE:

Conyza sumatrensis resistance mechanism to PSI-inhibiting herbicides

KEY WORDS:

horseweed; diquat; paraquat; photosystem

PAGES: 15
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUBÁREA: Fitotecnia
SPECIALTY: Matologia
SUMMARY:

Weed control is extremely necessary to ensure good productivity in crops, since the presence of these plants interferes with the growth and development of the production of interest due to the effects of competition for limited environmental resources. Among the weeds most present in national cultures, there are species of the genus Conyza, popularly known as horseweed, which are among the main species of weeds that cause damage to agriculture. Chemical control of weeds is the main method used in modern agriculture, however the use of herbicides with the same mechanism of action, over the years, exerts selection pressure on resistant weeds. The resistance of weeds to herbicides can be triggered by different ways, which are known as resistance mechanisms. Currently, the mechanisms that confer herbicide resistance in plants have been broadly grouped into target site resistance (TSR) and non-target site resistance (NTSR). Among the resistances reported for horseweed, the one reported for photosystem I inhibitors (PSI), impacts the management system, due to the importance of these products in desiccation management. Having more information about the mechanisms of resistance to PSI inhibitors in Conyza sumatrensis is essential to predict the behavior of this species in relation to other herbicides, and from that, to propose proactive strategies for managing this weed in the field

COMMITTEE MEMBERS:
Presidente - 2466219 - CAMILA FERREIRA DE PINHO
Externo à Instituição - JUNIOR BORELLA - FURG
Externa à Instituição - JÉSSICA FERREIRA LOURENÇO LEAL