Now showing items 1-10 of 150
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 ...
Alterations in chlorophyll a fluorescence, pigment concentrations and lipid peroxidation to chilling temperature in coffee seedlings
Coffea arabica L. is considered to be sensitive to low temperatures throughout its life cycle. In some Brazilian regions, seedling production occurs under shade conditions and during the winter, with average temperatures ...
Evaluation of Rhodocyclus gelatinosus biomass for broiler pigmentation
(Poultry Science Assoc Inc, 2002-03-01)
We evaluated the influence of dietry inclusion of corn gluten meal, apocartenoic acid ethyl ester (APO-EE), canthaxanthin, and Rhodocylus gelatinosus R-1 biomass on broiler carcass color. These oxycarotenoid sources were ...
Nitric oxide reduces oxidative stress generated by lactofen in soybean plants
(Academic Press Inc. Elsevier B.V., 2010-05-01)
Nitric oxide (NO) is a molecule able to directly scavenge ROS and end chain reactions, which can be generated by some herbicides This study aimed to evaluate whether the pretreatment of soybean plants with sodium nitroprusside ...
Physiological and biochemical responses of sugarcane to oxidative stress induced by water deficit and paraquat
Physiological and biochemical responses to oxidative stress induced by paraquat or water deficit were examined in this study with respect to photoinhibition, stomatal conductance, photosynthetic pigments, organic solutes, ...
Photosynthetic pigments, nitrogen status, and flower behavior in eggplant exposed to different sources and levels of potassium
The aim of this study was to investigate (i) the influence of different sources and levels of potassium on photosynthetic pigments, (ii) measure nitrogen status in leaf, (iii) evaluate flower behavior in eggplant (Solanum ...
Indirect measurement of photosynthetic pigments in the leaves of Jatropha curcas
The aim of this work was to generate mathematical models capable of identifying photosynthetic pigments and soluble proteins from the leaves of Jatropha curcas using the relationship between classical readings performed ...
A novel method for the estimation of soybean chlorophyll content using a smartphone and image analysis
The development of smartphones, specifically their cameras, and imaging technologies has enabled their use as sensors/measurement tools. Here we aimed to evaluate the applicability of a fast and noninvasive method for the ...
Species separation within the Lessonia nigrescens complex (Phaeophyceae, Laminariales) is mirrored by ecophysiological traits
(BEDIM- Biology, Ecology & Diversity of Invertebrates from Marine Environment, 2015)