"As water potential is regarded the best indicator of plant water status, because it is the integrated result of above- and below-ground environmental conditions, it holds promise as a pivotal model variable to which...
Tag - water potential
Rachel Shekar
Risk-takers and risk-avoiders: germination sensitivity to water stress in an arid zone with unpredictable rainfall
How much water does it take to turn an arid land into a hotbed of new life?
William Salter
Drought tolerance strategies of conifer species in the northwestern US
As trees photosynthesize, using carbon from the atmosphere to grow and store energy, they also lose water to the air (transpire). During a drought, continuing to photosynthesize and transpire puts trees at risk of...
Grass florets bet-hedge against unpredictable rainfall in arid landscapes
Seed germination in the arid zone is a high-risk event. For grasses specifically, the ancillary bracts of the floret surrounding the seed have been associated with innate dormancy mechanisms, resulting in infrequent...
botanyone
Responses of Eucalyptus globulus to eleven levels of continuous water availability
Foliar concentrations of plant secondary metabolites (PSMs) are influenced by soil water availability. However, concentrations of individual compounds in previously published studies have been reported to be higher...
Rhizosphere biophysics and root water uptake
The combination of soil drying and a high transpiration rate causes severe water stress in plants. In their Viewpoint article, Carminati et al. develop a biophysical model to describe how low soil moisture and high...
Concurrent measurements of stomatal conductance, sap pH and hydraulic conductance in Eucalyptus globulus clones
Selected Eucalyptus globulus clones can grow to a height of up to 14m in 3 years, receiving an average rainfall of 630 mm year–1 with a 4-month summer drought. Working with plants under a year old from five clones...
Light on hemiparasitic plants impacts on their hosts
Although parasitic plant–host associations occur in an ever-changing light environment, there is a poor understanding of how light influences the impact of the parasite on the host plant. Cirocco et al. hypothesize that...
Hydraulic integration in tree root vessels
Johnson et al. measure xylem embolism resistance and connectivity in roots of two co-occurring tree species in a semi-arid habitat, Quercus fusiformis and Sideroxylon lanuginosum.
![Leaf hydraulic conductance at elevated [CO2] and temperature](https://i0.wp.com/botany.one/wp-content/uploads/2013/10/mct143-snapshot-September-SIZED.jpg?resize=354%2C300&ssl=1)
Leaf hydraulic conductance at elevated [CO2] and temperature
Leaf hydraulic properties are strongly linked with transpiration and photosynthesis in many species, but it is not known if gas exchange and hydraulics will have co-ordinated responses to climate change. Locke et al...
Germination, temperature and water potential in Jatropha
Jatropha curcas is a drought-resistant tree whose seeds are a good source of oil that can be used for producing biodiesel. Windauer et al. examine germination at different temperatures and water potentials and find that...
