Claim · model-written summary
Estimating mean leaf area using weighted mean ratio produces positive bias.
- Taxon
- field cropst0
- Outcome
- estimates of mean leaf areae0
- Direction
- positively biasede0
- Comparator
- weightede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“the unweighted or the weighted mean leaf area: leaf weight ratio are shown to give positively biased estimates of mean leaf area”
t0“field crops”
Title
The estimation of leaf area in field crops
D. J. Watson The Journal of Agricultural Science 1937. doi:10.1017/s002185960005173x
Other claims from this paper (4)
- Association Leaf area to leaf weight ratio decreases as leaf weight rises.
- Method / resource A linear regression fits the relation of leaf area to leaf weight ratio with leaf weight.
- Method / resource Estimating mean leaf area using unweighted mean ratio produces positive bias.
- Recommendation The subsidiary sample used to estimate the ratio regression must be random.