Claim · model-written summary
Water deficit decreased ovary turgor by 0.3 MPa relative to well-watered plants.
- Treatment
- water deficite0
- Outcome
- turgore0
- Direction
- decreasede0
- Value
- 0.3 MPae0
- Comparator
- well‐watered plantse0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water deficit decreased ovary water potential, osmotic potential, and turgor by 0.6, 0.3, and 0.3 MPa, respectively, compared with values in well‐watered plants.”
t0“Maize”
Title
Maize Kernel Set at Low Water Potential: II. Sensitivity to Reduced Assimilates at Pollination
J. R. Schussler; M. E. Westgate Crop Science 1991. doi:10.2135/cropsci1991.0011183x003100050024x
Other claims from this paper (13)
- Intervention effect Water deficit decreased ovary water potential by 0.6 MPa relative to well-watered plants.
- Intervention effect Water deficit decreased ovary osmotic potential by 0.3 MPa relative to well-watered plants.
- Observation Leaf photosynthesis recovered to control values within 24 hours after treatments ended two days after pollination.
- Observation Control plants had 598 ± 17 kernels per ear.
- Intervention effect Low-light plants had fewer kernels per ear, 222 ± 72, than controls.
- Intervention effect Water-deficit plants had fewer kernels per ear, 15 ± 6, than controls.
- Intervention effect Brief photosynthesis inhibition had little impact on vegetative C and N accumulation.
- Intervention effect Brief photosynthesis inhibition severely reduced assimilate movement to reproductive sinks.
- Observation Ovary fructose, glucose and sucrose concentrations at pollination were similar among treatments.
- Mechanism High sugars in setting and aborting ovaries suggest kernel set depends on assimilate movement rather than soluble sugar concentrations.
- Intervention effect Low water potential inhibited sucrose uptake by isolated ovaries.
- Mechanism Ovary water status was suggested to directly affect kernel development.
- Mechanism Low ovary water potential reduced kernel set beyond the effect attributable to reduced assimilate supplies alone.