Claim · model-written summary
In an apple trial, accumulating four years of crops gave a lower coefficient of variation than two years.
- Taxon
- Apple
Malus domesticat0 - Outcome
- coefficient of variatione7
- Direction
- bettere0
- Comparator
- twoe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple Trials”
e0“Four years were better than two”
e7“obtain a low coefficient of variation”
Title
Methods of Reducing Crop Variation in Apple Trials
C. S. Moore; S. C. Pearce Journal of Horticultural Science 1976. doi:10.1080/00221589.1976.11514723
Other claims from this paper (7)
- Method / resource Accumulating six years of crops gave little advantage over four years in reducing the coefficient of variation.
- Method / resource Covariance adjustment by previous crops was useful, with two years of previous crop as good as four years.
- Method / resource Adjustment by trunk girth was less successful than previous-crop covariance but could be recommended in conjunction with previous crop.
- Method / resource Number of fruits was a more variable record than crop weight.
- Method / resource Removing positional variation by analysis of variance did not have a major effect in reducing variation.
- Method / resource Multi-tree plots proved effective in reducing variation, since adjacent tree crops are not highly correlated.
- Method / resource Covariance adjustment of multi-tree plots was not successful.