Claim · model-written summary
Time of year significantly affected some dependent variables, including leaf-area ratio.
- Taxon
- Helianthus annuus
Helianthus annuuse1 - Outcome
- leaf-area ratioe0
- Qualifier
- time of yeare0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for some of the dependent variables, e.g. leaf-area ratio, the ‘time of year’ effect was significant”
e1“seed of Helianthus annuus”
Title
Physiological and Ecological Studies in the Analysis of Plant Environment
G. E. BLACKMAN; J. N. BLACK; A. W. KEMP Annals of Botany 1955. doi:10.1093/oxfordjournals.aob.a083445
Other claims from this paper (11)
- Observation The two years of data could be pooled except for stem-weight ratio.
- Association Diurnal temperature fluctuation accounted for little of the growth variation.
- Method / resource Log or square-root transformations of light data did not improve regression fit.
- Method / resource Including initial value with light and temperature eliminated the time-of-year effect on predicted week-end values.
- Association Leaf-weight ratio was not controlled by light amount or mean temperature.
- Association Root relative growth rate and root-weight ratio were positively linked only to temperature.
- Association Leaf growth in area or weight and area-based net assimilation rate depended positively on light alone.
- Association Weight-based net assimilation and whole-plant and stem growth rates correlated positively with temperature and light.
- Association Leaf-area ratio, leaf area to weight ratio and stem-weight ratio fell with increasing light.
- Association Leaf-area ratio, leaf area to weight ratio and stem-weight ratio rose with temperature.
- Method / resource Selected individual growth and assimilation regressions accounted for 47 to 91 percent of variation.