Claim · model-written summary
Root cooling lowered leaf relative water content by as much as 23%.
- Taxon
- Artemisia tridentata
Artemisia tridentatat0 - Treatment
- root coolinge0
- Outcome
- leaf relative water contente0
- Direction
- decreasee0
- Value
- as much as 23%e0
Not reportedComparator
Verbatim
e0“a concomitant decrease of as much as 23% in leaf relative water content (RWC) indicated that root cooling affected stomatal closure”
t0“Artemisia tridentata”
Title
H. BassiriRad; M. M. Caldwell; K. A. Mott Botanica Acta 1993. doi:10.1111/j.1438-8677.1993.tb00744.x
Other claims from this paper (9)
- Intervention effect Root cooling reduced whole-plant net photosynthesis by 25% at high light.
- Intervention effect Root cooling reduced stomatal conductance by more than 50% before photosynthesis declined.
- Intervention effect Root cooling reduced intercellular CO2 concentration by about 10% at high light.
- Intervention effect Photosynthesis versus intercellular CO2 curves did not differ between cold and warm soil.
- Intervention effect Stomatal conductance was lower at the lower soil temperature.
- Mechanism The authors inferred that cooling limited photosynthesis through stomatal closure linked to lower water supply.
- Intervention effect At lower light, root cooling did not decrease whole-plant photosynthesis.
- Intervention effect At lower light, root cooling moderately reduced stomatal conductance, intercellular CO2 and relative water content.
- Intervention effect Cold soil rapidly and substantially reduced root respiration at either light level.