Now showing items 11-20 of 44
Trocas gasosas e eficiência fotoquímica de cultivares de algodoeiro herbáceo sob aplicação de silício foliar
(Univ Estadual Londrina, 2015)
Eficiencia fotoquímica máxima e índice de potencial fotosintético en plantas de melón (cucumis melo) tratadas con bajas temperaturasMaximum efficiency phothochemistry and potential photosynthetic index in melon plants (Cucumis melo) treated with low temperatures
(Universidad Nacional del Litoral. Facultad de Ciencias Agrarias, 2014-12)
La fluorescencia de la clorofila se utiliza para determinar la eficiencia fotoquímica de las plantas ante diferentes condiciones ambientales. Existen índices como Fv/Fm y PI abs que son indicadores indirectos del rendimiento ...
The effect of chilling on the photosynthetic activity in coffee (Coffea arabica L.) seedlings. The protective action of chloroplastid pigments
Coffea arabica is considered to be sensitive to low temperatures, being affected throughout its entire life cycle. Injury caused by chilling (low temperatures above zero degree centigrade) is characterized primarily by ...
Photochemical damage and comparative performance of superoxide dismutase and ascorbate peroxidase in sugarcane leaves exposed to paraquat-induced oxidative stress
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2008)
The physiological responses of sugarcane (Succharion officinarum L.) to oxidative stress induced by methyl viologen (paraquat) were examined with respect to photochemical activity, chlorophyll content, lipid peroxidation ...
PHOTOSYNTHETIC CHARACTERIZATION OF THE ISOHIDRIC SPECIES PONYTAIL PALM UNDER WATER DEFICIT
(Univ Fed Rural Semi-arido-ufersa, 2015-01-01)
The maintenance of a plant water status is essential for keeping of its development in environments with limited water availability. Different species have different mechanisms that provide greater ability to survive under ...
Nanoencapsulation enhances the post-emergence herbicidal activity of atrazine against mustard plants
(Public Library Science, 2015)
Poly(epsilon-caprolactone) (PCL) nanocapsules have been recently developed as a modified release system for atrazine, an herbicide that can have harmful effects in the environment. Here, the post-emergence herbicidal ...