Claim · model-written summary
Number of leaves increases more rapidly with age than any other above-ground characteristic of citrus trees.
- Outcome
- number of leavese0
- Direction
- increases more rapidlye0
- Comparator
- any other above-ground characteristic of treese0
CitrusNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of leaves increases more rapidly with age than does any other above-ground characteristic of trees”
t0“Growth of the Photosynthetic Area of Citrus”
Title
Growth of the Photosynthetic Area of Citrus
F. M. Turrell Botanical Gazette 1961. doi:10.1086/336117
Other claims from this paper (19)
- Observation The frequency curves of leaf numbers were normal in the three youngest citrus trees.
- Association Mean blade area per tree, mean blade area per class per tree and mean blade fresh weight per tree relate to tree age by a power equation.
- Association Crown surface, crown volume and their ratio per tree relate to tree age by a power equation.
- Association Trunk diameter, total leaf area and total leaf number per tree relate to tree age by a power equation.
- Association Crown diameter, crown surface and crown volume relate to tree height by an allometric equation.
- Association The ratio of crown surface to crown volume, trunk diameter, total leaf area and total leaf number per tree relate to tree height by an allometric equation.
- Association Mean blade area and mean blade fresh weight per class per tree relate to blade length, and crown surface relates to crown volume, by allometric equations.
- Association Trunk diameter and crown volume, total leaf area and crown volume, and total leaf area and trunk diameter relate by allometric equations.
- Association Mean blade area per class per tree relates linearly to blade fresh weight.
- Method / resource An exponential equation describes the trunk diameter and total leaf area relation more precisely than the allometric equation.
- Observation As the Valencia orange tree ages, its shape changes and the shape of its leaves changes.
- Observation Mean leaf-blade area and mean leaf-blade fresh weight per tree decrease with the age of the tree.
- Association A power function described leaf-blade area in terms of blade length for four citrus varieties.
- Observation The allometric coefficient was largest for Valencia orange leaves.
- Observation The allometric coefficient varied with the age of the tree from which the leaves were picked.
- Observation The allometric coefficient for Valencia orange leaves was 1.851-1.982.
- Observation The allometric coefficient for grapefruit leaves was 1.789.
- Observation The allometric coefficient for lemon leaves was 1.784.
- Observation The allometric coefficient for Washington Navel orange leaves was 1.713.