Hormesis with glyphosate depends on coffee growth stage

Hormesis with glyphosate depends on coffee growth stage.

Weed management systems in almost all Brazilian coffee plantations allow herbicide spray to drift on crop plants. In order to evaluate if there is any effect of the most commonly used herbicide in coffee production, glyphosate, on coffee plants, a range of glyphosate doses were applied directly on coffee plants at two distinct plant growth stages. Although growth of both young and old plants wa...

PHYSIOLOGICAL DOSE-RESPONSE OF COFFEE (Coffea arabica L.) PLANTS TO GLYPHOSATE DEPENDS ON GROWTH STAGE

Glyphosate is the main herbicide used in coffee (Coffea arabica L.) plantations in Brazil. Problems with herbicide drift commonly occur in orchard fields due to non-adequate spraying conditions. A series of experiments was carried out aiming to evaluate physiological dose-response of C. arabica plants submitted to exposure to simulated glyphosate drift in two distinct plant growth stages. Glyph...

A theory for growth hormesis.

Genetic diversity among coffee tree progenies Big Coffee VL based on growth traits and production.

In a coffee plantation of a coffee 'Acaiá' cultivar (Coffea arabica), on the Midwest of Minas Gerais in Capitólio city, a different kind of coffee tree was found (1989), possibly due to a mutation. It presented larger leaves and grains than those of conventional coffee trees and was named as "Big Coffee VL." The aim of this study was to estimate the genetic diversity of Big Coffee VL progenies ...

Growth Stage Affects Dose Response of Selected Glyphosate-Resistant Weeds to Premix of 2,4-D Choline and Glyphosate (Enlist DuoTM Herbicide*)

With the intent to control glyphosate–resistant and hard to control weeds, a formulation of 2,4-D choline (24.4%) and glyphosate (22.1%) (Enlist DuoTM herbicide) (Note 1) has been developed recently to be used post-emergence in corn and soybean tolerant to Enlist DuoTM in the United States. Dose response studies were conducted under greenhouse conditions for the evaluation of effective rates of...