Results 31 to 40 of about 2,109 (262)

Water vapour dynamics as a key determinant of atmospheric composition and transport mechanisms [PDF]

Biogeosciences
Concentrations of any dry-air component (gas i) are often defined with reference to dry air, excluding water vapour. Here it is shown that water vapour is an air component of paramount importance because its sources and sinks dominate those of air. Alone
A. S. Kowalski, A. S. Kowalski, I. A. Janssens, O. Pérez-Priego, O. Pérez-Priego   +4 more
doaj   +1 more source

Growth and physiology of maize under water salinity and nitrogen fertilization in two soils [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2019
The nitrogen fertilization, in general, minimizes the effects of salinity on plants, but the mitigating action depends on plant species, cultivar, soil texture and plant age, among other factors. The objective of this study was to evaluate the effects of
Régis dos S. Braz, Claudivan F. de Lacerda, Raimundo N. de Assis Júnior, Jorge F. da S. Ferreira, Adriana C. de Oliveira, Aureliano de A. Ribeiro   +5 more
doaj   +1 more source

Effects of Arthrospira platensis Extract on Physiology and Berry Traits in Vitis vinifera

Plants, 2020
Several advantages on physiology, productivity, and grape quality have been reported for grapevine treated with seaweed extracts, but little is known about the importance of cyanobacterial-based biostimulants in viticulture.
Linda Salvi, Alberto Niccolai, Eleonora Cataldo, Sofia Sbraci, Francesca Paoli, Paolo Storchi, Liliana Rodolfi, Mario R. Tredici, Giovan Battista Mattii   +8 more
doaj   +1 more source

Growth and Physiological Traits Associated with Water Use Efficiency in Different Popcorn Genotypes Grown Under Water-Stress Conditions

Crops
Climate change may soon impact popcorn productivity. The aim was to assess physiological and growth traits in two popcorn genotypes with different water use efficiency under water-deficit stress.
Emile Caroline Silva Lopes, Paulo Ricardo dos Santos, Luciene Souza Ferreira, Guilherme Augusto Rodrigues de Souza, Weverton Pereira Rodrigues, Samuel Henrique Kamphorst, Valter Jário de Lima, Deivisson Pelegrino de Abreu, Antônio Teixeira do Amaral Junior, Eliemar Campostrini   +9 more
doaj   +1 more source

Upscaling Leaf Gas Exchange Measurements to the Whole Grapevine Canopy : an Update

Advances in horticultural science, 2009
This review first revisits current knowledge about single-leaf function, viz. photosynthesis, chiefly in relation to environmental factors, that underscores the importance of multiple summer stresses. Emphasis is placed on the response different genotypes show under light and heat stress with or without soil-water shortage.
S. Poni, A. Palliotti, MATTII, GIOVAN BATTISTA, R. Di Lorenzo   +3 more
openaire   +4 more sources

Flooding, Leaf Gas Exchange, and Growth of Mango in Containers [PDF]

Journal of the American Society for Horticultural Science, 1991
The effect of flooding on container-grown `Tommy Atkins' mango (Mangifera indica L.) trees on two rootstock, and on container-grown seedling `Peach' mango trees, was investigated by evaluating vegetative growth, net gas exchange, and leaf water potential.
Kirk D. Larson, Bruce Schaffer, Frederick S. Davies   +2 more
openaire   +1 more source

Defoliation of sweet corn plants under irrigation depths and its impact on gas exchange

Revista Brasileira de Engenharia Agrícola e Ambiental
The objective of this work was to evaluate leaf gas exchanges of sweet corn as a function of defoliation when submitted to different irrigation depths. The experimental design was randomized blocks in split-plot scheme, with four irrigation depths in the
Osvaldir F. dos Santos, Sebastião F. de Lima, Vespasiano B. de Paiva Neto, Gabriel L. Piati, Christian R. W. de S. Osório, Hugo M. de Souza   +5 more
doaj   +1 more source

Impact of canopy environmental variables on the diurnal dynamics of water and carbon dioxide exchange at leaf and canopy level [PDF]

Biogeosciences
Quantifying water vapor and carbon dioxide (CO2) exchange dynamics between the land and the atmosphere through observations and modeling is necessary in order to reproduce and project near-surface climate in coupled land–atmosphere models.
R. González-Armas, J. Vilà-Guerau de Arellano, J. Vilà-Guerau de Arellano, M. R. Mangan, O. Hartogensis, H. de Boer   +5 more
doaj   +1 more source

Effects of Soil Flooding on Leaf Gas Exchange of Tomato Plants [PDF]

Plant Physiology, 1983
Carbon dioxide and water vapor exchange of tomato (Lycopersicon esculentum Mill. cv Rheinlands Ruhm) leaves were measured before and after 24 h of soil flooding to characterize both stomatal and nonstomatal responses to the stress. Leaf epidermal conductance to water vapor decreased by 47% after flooding, accompanied by an increase in the sensitivity ...
openaire   +2 more sources

Leaf Gas-exchange Characteristics of Sixteen Cycad Species [PDF]

Journal of the American Society for Horticultural Science, 1997
Leaf gas exchange characteristics for 16 species of cycad were determined under field conditions in Miami, Fla. Net CO 2 assimilation (A CO2 ) ranged from 4.9 μmol·m -2 ·s -1
Thomas E. Marler, Leah E. Willis
openaire   +1 more source