Claim · model-written summary
Dormant-stage water deficit had no significant biomass effect.
- Treatment
- Water deficit at dormant stagee0
- Outcome
- biomass productione0
- Direction
- no significant effecte0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Water deficit at dormant stage had no significant effect on biomass production, but it may have hindered the allocation of assimilates to the heads.”
Title
Zhaohui Wang; Shengxiu Li; Cecil L. Vera; et al. Communications in Soil Science and Plant Analysis 2005. doi:10.1081/css-200058480
Other claims from this paper (18)
- Observation Wheat at tillering, stem elongation and grain filling was more sensitive to water deficit than at dormancy.
- Intervention effect Water deficit at stem elongation or grain filling reduced biomass.
- Intervention effect Water deficit at stem elongation or grain filling appeared to inhibit assimilate movement to heads.
- Intervention effect Dormant-stage water deficit may have hindered assimilate allocation to heads.
- Intervention effect Tillering-stage water deficit tended to raise grain harvest index.
- Intervention effect Tillering-stage water deficit reduced biomass.
- Intervention effect Water deficit at all four growth stages significantly reduced grain yield by 15–91%.
- Intervention effect Water deficit appeared to impede nitrogen, phosphorus and potassium translocation, especially at advanced stages.
- Intervention effect Dormant-stage supplemental irrigation raised grain yield by 12%.
- Intervention effect Grain-filling supplemental irrigation raised grain yield by 35%.
- Intervention effect Grain-filling irrigation raised grain nitrogen uptake by 21%.
- Intervention effect Tillering-stage irrigation significantly reduced grain yield and grain nitrogen and phosphorus uptake.
- Intervention effect Elongation-stage irrigation raised biomass and whole-plant nitrogen, phosphorus and potassium uptake.
- Intervention effect Elongation-stage irrigation appeared to reduce assimilate and nutrient translocation to heads.
- Intervention effect Supplemental irrigation reduced or left unchanged grain nitrogen, phosphorus and potassium concentration.
- Observation Nitrate nitrogen was the main residual mineral nitrogen form in soil.
- Intervention effect Water deficit at all stages or tillering irrigation markedly raised residual soil nitrate nitrogen.
- Intervention effect Elongation or grain-filling irrigation significantly reduced residual soil nitrate nitrogen.