Results 51 to 60 of about 180,291 (303)

The role of abscisic acid and water relations in drought responses of subterranean clover [PDF]

open access: yes, 1997
The role of water relations and abscisic acid (ABA) in the responses to drought were studied in a mediterranean forage crop, Trifolium subterraneum L. under field conditions.
Chaves, M   +3 more
core   +1 more source

Comparative field performance of three different gas exchange systems

open access: yesBothalia: African Biodiversity & Conservation, 1997
We compared portable and continuously monitoring gas exchange systems under field conditions, using Protea glabra Thunb. as a test species. The aim was to determine if the same patterns of gas exchange and ancillary parameters could be obtained with ...
G. F. Midgley   +5 more
doaj   +1 more source

Effects of the antiozonant ethylenediurea (EDU) on Fraxinus ornus L.. The role of drought [PDF]

open access: yes, 2017
Ethylenediurea (EDU) is a synthetic chemical known to protect plants from the phytotoxic effects of tropospheric ozone (O3). Although many studies have proposed the use of EDU for studying the O3 effects under field conditions, its mechanism of action is
Fusaro, Lina   +2 more
core   +2 more sources

Variation in the dynamic of absorption and efficiency of phosphorus use in tomato

open access: yesScientific Reports, 2022
Changes in root growth and metabolism of P in tomato cultivars are necessary in acidic soils in tropical and subtropical regions in response to P deficiency.
Douglas José Marques   +6 more
doaj   +1 more source

Effects of paclobutrazol on stomatal size and density in peach leaves [PDF]

open access: yes, 1998
3 pag., 3 fig. The definitive version is available at: http://www.actahort.org/To study the stomatal contribution to total leaf gas exchange in leaves of paclobutrazol-treated peach trees (Prunus persica (L.) Batsch), counts and measurements of ...
Blanco Braña, Álvaro   +2 more
core   +1 more source

Fossil evidence for low gas exchange capacities for Early Cretaceous angiosperm leaves [PDF]

open access: yes, 2011
The photosynthetic gas exchange capacities of early angiosperms remain enigmatic. Nevertheless, many hypotheses about the causes of early angiosperm success and how angiosperms influenced Mesozoic ecosystem function hinge on understanding the maximum ...
Brodribb, Timothy J   +6 more
core   +1 more source

How do leaf and ecosystem measures of water-use efficiency compare? [PDF]

open access: yes, 2017
The terrestrial carbon and water cycles are intimately linked: the carbon cycle is driven by photosynthesis, while the water balance is dominated by transpiration, and both fluxes are controlled by plant stomatal conductance.
Arneth, Almut,   +15 more
core   +3 more sources

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

open access: yesAdvanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk   +7 more
wiley   +1 more source

Stomatal behavior of cowpea genotypes grown under varying moisture levels [PDF]

open access: yes, 2017
Drought is a major limitation to crop productivity worldwide. Plants lose most of their water through stomata, thus making stomata an important organ in the control of transpiration and photosynthesis.
Ayisi, Kingsley   +3 more
core   +2 more sources

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

open access: yesAdvanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler   +10 more
wiley   +1 more source

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