Claim · model-written summary
Tillering-stage irrigation significantly reduced grain yield and grain nitrogen and phosphorus uptake.
- Treatment
- SI at tillering stagee0
- Outcome
- grain yield and N and P uptake in the graine0
- Direction
- decreasede0
Not reportedTaxonMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Verbatim
e0“Application of SI at tillering stage significantly decreased grain yield and N and P uptake in the grain”
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 had no significant biomass effect.
- 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 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.