Claim · model-written summary
Defoliation started at R2 reduced soybean seed number per unit area.
- Taxon
- SOYBEAN
Glycine maxt0 - Treatment
- Defoliation started at growth stage R2e0
- Outcome
- seed number per unit areae0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Defoliation started at growth stage R2 reduced seed number per unit area”
t0“SOYBEAN”
Title
USING MANUAL DEFOLIATION TO SIMULATE SOYBEAN RUST: EFFECT ON GROWTH AND YIELD FORMATION
Abdullah M. Aqeel UKnowledge (University of Kentucky) 2011
Other claims from this paper (8)
- Intervention effect Both manual defoliation treatments reduced soybean yield in all experiments.
- Intervention effect The yield reduction was larger for the defoliation treatments at growth stage R2 than for the other treatment.
- Method / resource The yield losses from manual defoliation were equivalent to those observed in infected soybean canopies in Brazil.
- Method / resource The authors suggest that manual defoliation simulating changes in effective leaf area duration shows promise as a tool to simulate the impact of soybean rust on soybean yield.
- Intervention effect Radiation use efficiency and crop growth rate from R2 to R5 were not influenced by defoliation.
- Intervention effect Defoliation started at R5 reduced soybean seed size, due to a shortened seed-fill duration and a lower seed growth rate.
- Intervention effect There was no evidence that manual defoliation affected leaf senescence or nitrogen redistribution to the seed.
- Mechanism The authors conclude that reduced light interception by soybean rust was the main reason for the reductions in soybean growth and yield.