Claim · model-written summary
Topping decreased whole-plant tobacco yield.
- Taxon
- tobacco
Nicotiana tabacumt0 - Treatment
- Toppinge0
- Outcome
- whole‐plant yielde0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Topping decreased whole‐plant yield”
t0“Tobacco”
Title
Close‐Grown Tobacco: Agronomic Characteristics, Total Alkaloid, and Sugar Content1
C. R. Campbell; J. F. Chaplin; W. H. Johnson; et al. Agronomy Journal 1980. doi:10.2134/agronj1980.00021962007200050020x
Other claims from this paper (14)
- Observation Topped tobacco plants averaged 26% lamina.
- Observation Topped plants averaged 12% midrib.
- Observation Topped plants averaged 62% stalk.
- Observation Untopped plants averaged 17% top material.
- Intervention effect Tobacco yield rose with nitrogen rate through 252 kg/ha.
- Intervention effect Tobacco yield rose with plant population.
- Intervention effect Twin and equidistant row spacing had no yield effect.
- Intervention effect Topping increased tobacco alkaloid and reducing sugar concentrations.
- Intervention effect Topping increased the lamina-to-stalk ratio.
- Observation Total alkaloids ranged from 0.18% to 0.84% across tobacco treatments.
- Observation Total reducing sugars averaged 8.0 for nontopped plants.
- Observation Total reducing sugars averaged 9.6% for topped plants.
- Recommendation High tobacco yields can be obtained with close-grown production and whole-plant harvest.
- Recommendation Cultural practices may be manipulated to obtain desirable tobacco chemistry and physical characteristics.