Claim · model-written summary
Above-ground dry matter water use efficiency (AGWUE) remained unchanged.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Verbatim
e0“the above-ground dry matter WUE (AGWUE) remained unchanged”
t0“Bell Pepper”
Title
Yield Traits and Water and Nitrogen Use Efficiencies of Bell Pepper Grown in Plastic-Greenhouse
Vincenzo Candido; Vito Miccolis; Anna Rita Rivelli Italian Journal of Agronomy 2009. doi:10.4081/ija.2009.3.91
Other claims from this paper (18)
- Intervention effect The highest bell pepper yield in both years came from combining 100% restitution of ETc with 200 kg N ha-1.
- Observation Marketable yield of bell pepper was 37 t ha-1 in 1998.
- Observation Marketable yield of bell pepper was 72 t ha-1 in 1999.
- Intervention effect The second-year yield doubling was probably due to earlier transplantation and plastic mulching.
- Intervention effect Water deficit imposed from late flowering to early fruit set reduced marketable yield by up to 44%.
- Intervention effect Peppers grown under water stress were richer in dry matter and soluble solids.
- Association The yield decline due to water deficit varied with the N dose, with numerous irrigation by nitrogen interactions.
- Intervention effect Without nitrogen fertilization the quantity and quality of the fruits remained unchanged.
- Intervention effect The maximum N dose (300 kg ha-1) enhanced the negative effect of water deficit on the number of marketable peppers, at -52%.
- Intervention effect The maximum N dose (300 kg ha-1) enhanced the negative effect of water deficit on the weight of marketable peppers, at -161%.
- Observation Waste peppers reached 31% of total production by weight.
- Observation Over 21% of peppers were affected by blossom-end rot.
- Intervention effect Water stress drastically reduced total above-ground dry biomass (40%).
- Intervention effect Water stress significantly decreased nitrogen absorption by the plant (54%).
- Intervention effect Water stress gave lower Harvest Index values, with preferential translocation of nitrogen towards stems and leaves.
- Observation Total yield water use efficiency (TYWUE) and marketable yield water use efficiency (MYWUE) decreased.
- Intervention effect A nitrogen dose of 200 kg ha-1 maximized pepper yield and quality, with and without water stress.
- Intervention effect Water and nitrogen use efficiency values were maximal under the 200 kg N ha-1 condition.