Results 31 to 40 of about 200,037 (304)

The Components of Leaf Water Potential II. Pressure Potential and Water Potential [PDF]

open access: yesAustralian Journal of Biological Sciences, 1967
The relation between the relative water content (R) and the pressure potential can be expressed through the coefficient of enlargement (e). The assumption that e does not vary with R is for many leaves a useful first approximation even when R is so low that pressure potential is negative. e is estimated at between 7 and 84 bars for various leaf types.
openaire   +1 more source

Chitosan Improves Morphological and Physiological Attributes of Grapevines Under Deficit Irrigation Conditions

open access: yesJournal of Horticultural Research, 2021
This study aimed to estimate the morphological and physiological effects of chitosan foliar spray and/or three irrigation levels of 100%, 60%, and 40% of field capacity on grapevines grown in plastic containers to simulate water shortage conditions.
Khalil Hoda Ali, Badr Eldin Rasha M.
doaj   +1 more source

Pipe Cavitation Parameters Reveal Bubble Embolism Dynamics in Maize Xylem Vessels across Water Potential Gradients

open access: yesAgriculture, 2023
Maize, a crop of international relevance, frequently undergoes xylem embolism due to water shortage, negatively impacting growth, yield, and quality.
Yangjie Ren   +5 more
doaj   +1 more source

Study on the reasonable water supply in NFT tomato culture system based on leaf water potential

open access: yes浙江大学学报. 农业与生命科学版, 2006
Taking the Shengnv cherry tomato as the research material, the daily variation of leaf water potential (LWP) in tomato plant were investigated under different irrigating circumstances with NFT culture system.
XU Lin-juan   +4 more
doaj   +1 more source

Leaf Water Potentials Measured with a Pressure Chamber [PDF]

open access: yesPlant Physiology, 1967
Leaf water potentials were estimated from the sum of the balancing pressure measured with a pressure chamber and the osmotic potential of the xylem sap in leafy shoots or leaves. When leaf water potentials in yew, rhododendron, and sunflower were compared with those measured with a thermocouple psychrometer known to indicate accurate values of leaf ...
openaire   +2 more sources

A novel, non-invasive, online-monitoring, versatile and easy plant-based probe for measuring leaf water status

open access: yes, 2008
A high-precision pressure probe is described which allows non-invasive online-monitoring of the water relations of intact leaves. Real-time recording of the leaf water status occurred by data transfer to an Internet server.
Zimmermann, Dirk   +15 more
core   +1 more source

Water relations of woody perennial plant species

open access: yesOENO One, 2007
Aims: To describe the relation of various water status measures of woody perennial plants (predawn and midday stem and leaf water potential), to indices of physiological activity such as leaf conductance, vegetative growth and fruit growth and ...
Kenneth A. Shackel
doaj   +1 more source

Leaf Water Storage and Robustness to Intermittent Drought: A Spatially Explicit Capacitive Model for Leaf Hydraulics

open access: yesFrontiers in Plant Science, 2021
Leaf hydraulic networks play an important role not only in fluid transport but also in maintaining whole-plant water status through transient environmental changes in soil-based water supply or air humidity.
Yongtian Luo   +3 more
doaj   +1 more source

Impact of soil water potential pattern on root water uptake distribution and leaf water potential

open access: yes, 2021
<p>Root water uptake is a major process controlling water balance and accounts for about 60% of global terrestrial evapotranspiration. The root system employs different strategies to better exploit available soil water, however, the regulation of water uptake under the spatiotemporal heterogeneous and uneven distribution of soil water is ...
Mehmandoostkotlar, Ali   +2 more
openaire   +2 more sources

Midday measurements of leaf water potential and stomatal conductance are highly correlated with daily water use of Thompson Seedless grapevines

open access: yes, 2011
A study was conducted to determine the relationship between midday measurements of vine water status and daily water use of grapevines measured with a weighing lysimeter. Water applications to the vines were terminated on August 24th for 9 days and again
Williams, L.E.   +5 more
core   +1 more source

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