Claim · model-written summary
Water deficit caused plants to reach the moisture thresholds 10 days earlier than controls.
- Treatment
- Water‐deficiente0
- Outcome
- reached these valuese0
- Direction
- earliere0
- Value
- 10 de0
- Comparator
- controlse0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water‐deficient plants reached these values 10 d earlier because water loss from the endosperm began sooner after anthesis and maximum water content of the embryo was lower, compared with the controls.”
t0“maize ( Zea mays L.)”
Title
Water Status and Development of the Maize Endosperm and Embryo during Drought
Mark E. Westgate Crop Science 1994. doi:10.2135/cropsci1994.0011183x003400010014x
Other claims from this paper (12)
- Intervention effect Withholding irrigation decreased maize endosperm and embryo mass by 16% relative to controls.
- Intervention effect Water deficit shortened the effective filling period.
- Intervention effect Water deficit did not alter dry matter accumulation rate in maize endosperm or embryo.
- Observation Leaf and stalk carbohydrate reserves and leaf nitrogen were remobilized to support maize kernel growth.
- Observation Grain filling stopped before those reserves were completely depleted.
- Observation Grain filling continued until maize endosperm moisture reached 280 g kg −1 fresh wt.
- Observation Grain filling continued until maize embryo moisture reached 430 g kg −1 fresh wt.
- Intervention effect Endosperm water loss began sooner after anthesis under water deficit.
- Intervention effect Maximum embryo water content was lower under water deficit than in controls.
- Observation Kernel and embryo osmotic potentials fell rapidly late in grain filling and were − 2.2.to − 2.6 MPa when growth stopped.
- Mechanism The authors infer that drought directly affects kernel water status and that this may determine kernel development.
- Mechanism The authors suggest postanthesis deficit shortens grain filling by premature endosperm desiccation and limited embryo volume.