Paper · 1961 · Botanical Gazette

Growth of the Photosynthetic Area of Citrus

F. M. Turrell

20
claims
41
verbatim quotes
64
citations
3
research areas
—
Not open access

Abstract

Part I.-1. The growth of the photosynthetic area of Valencia orange trees has been determined from the total number and blade lengths of leaves from four trees of 3, 6, 12, and 29 years of age. The frequency curves were normal in the three youngest trees. 2. The physical characteristics of the four trees also were determined. 3. The relationships between tree age and mean blade area per tree, mean blade area per class per tree, mean blade fresh weight per tree, crown surface per tree, crown volume per tree, ratio of crown surface to crown volume per tree, trunk diameter per tree, total leaf area per tree, and total leaf number per tree can be expressed by an equation of the general type y = bxn, where x is time. 4. The relationships between tree height and crown diameter, crown surface, crown volume, ratio of crown surface to crown volume, trunk diameter, total leaf area, and total leaf number per tree can be expressed by the allometric equation y = bxk. 5. The relationships between dimensions of plant parts, such as mean blade area per class per tree and blade length, and between these dimensions and other characteristics, such as mean blade fresh weight per class per tree and blade length, crown surface per tree and crown volume, trunk diameter and crown volume, total leaf area per tree and crown volume, and total leaf area and trunk diameter could be expressed by the allometric equation y = bxk. 6. The relationship between mean blade area per class per tree and blade fresh weight was linear and could be expressed by the equation y = a + bx. 7. The relationship between trunk diameter and total leaf area could be expressed more precisely by the exponential equation y = aebx than by the allometric equation. 8. As the Valencia orange tree ages, its shape changes and the shape of its leaves changes. The number of leaves increases more rapidly with age than does any other above-ground characteristic of trees. Mean leaf-blade area per tree and mean leaf-blade fresh weight per tree decrease with the age of tree. Part II.-1. The power function effectively described leaf-blade area in terms of blade length for four varieties of citrus. 2. The allometric coefficient was largest for Valencia orange leaves, and it varied with the age of the tree from which they were picked. 3. The allometric coefficient was distinctive for leaves of each variety of citrus: In Valencia orange n3 = 1.851-1.982, in grapefruit n3 = 1.789, in lemon n3 = 1.784, and in Washington Navel orange n3 = 1.713.

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Claims 20

Observationobservedoriginal resultmeasured

Claim · model-written summary

The frequency curves of leaf numbers were normal in the three youngest citrus trees.

Taxon
CitrusCitrust0
Outcome
frequency curvese0
Qualifier
normal in the three youngest treese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The frequency curves were normal in the three youngest trees”

✓ located verbatim in the source · abstract, characters 194–254 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

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.

Taxon
CitrusCitrust0
Treatment
tree agee0
Outcome
mean blade area per tree, mean blade area per class per tree, mean blade fresh weight per treee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between tree age and mean blade area per tree, mean blade area per class per tree, mean blade fresh weight per tree, crown surface per tree, crown volume per tree, ratio of crown surface to crown volume per tree, trunk diameter per tree, total leaf area per tree, and total leaf number per tree can be expressed by an equation of the general type y = bxn, where x is time”

✓ located verbatim in the source · abstract, characters 331–720 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Crown surface, crown volume and their ratio per tree relate to tree age by a power equation.

Taxon
CitrusCitrust0
Treatment
tree agee0
Outcome
crown surface per tree, crown volume per tree, ratio of crown surface to crown volume per treee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between tree age and mean blade area per tree, mean blade area per class per tree, mean blade fresh weight per tree, crown surface per tree, crown volume per tree, ratio of crown surface to crown volume per tree, trunk diameter per tree, total leaf area per tree, and total leaf number per tree can be expressed by an equation of the general type y = bxn, where x is time”

✓ located verbatim in the source · abstract, characters 331–720 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Trunk diameter, total leaf area and total leaf number per tree relate to tree age by a power equation.

Taxon
CitrusCitrust0
Treatment
tree agee0
Outcome
trunk diameter per tree, total leaf area per tree, and total leaf number per treee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between tree age and mean blade area per tree, mean blade area per class per tree, mean blade fresh weight per tree, crown surface per tree, crown volume per tree, ratio of crown surface to crown volume per tree, trunk diameter per tree, total leaf area per tree, and total leaf number per tree can be expressed by an equation of the general type y = bxn, where x is time”

✓ located verbatim in the source · abstract, characters 331–720 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Crown diameter, crown surface and crown volume relate to tree height by an allometric equation.

Taxon
CitrusCitrust0
Treatment
tree heighte0
Outcome
crown diameter, crown surface, crown volumee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between tree height and crown diameter, crown surface, crown volume, ratio of crown surface to crown volume, trunk diameter, total leaf area, and total leaf number per tree can be expressed by the allometric equation y = bxk”

✓ located verbatim in the source · abstract, characters 725–967 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

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.

Taxon
CitrusCitrust0
Treatment
tree heighte0
Outcome
ratio of crown surface to crown volume, trunk diameter, total leaf area, and total leaf number per treee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between tree height and crown diameter, crown surface, crown volume, ratio of crown surface to crown volume, trunk diameter, total leaf area, and total leaf number per tree can be expressed by the allometric equation y = bxk”

✓ located verbatim in the source · abstract, characters 725–967 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

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.

Taxon
CitrusCitrust0
Treatment
dimensions of plant partse0
Outcome
mean blade area per class per tree and blade lengthe0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between dimensions of plant parts, such as mean blade area per class per tree and blade length, and between these dimensions and other characteristics, such as mean blade fresh weight per class per tree and blade length, crown surface per tree and crown volume, trunk diameter and crown volume, total leaf area per tree and crown volume, and total leaf area and trunk diameter could be expressed by the allometric equation y = bxk”

✓ located verbatim in the source · abstract, characters 972–1420 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Trunk diameter and crown volume, total leaf area and crown volume, and total leaf area and trunk diameter relate by allometric equations.

Taxon
CitrusCitrust0
Treatment
dimensions of plant partse0
Outcome
trunk diameter and crown volumee0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationships between dimensions of plant parts, such as mean blade area per class per tree and blade length, and between these dimensions and other characteristics, such as mean blade fresh weight per class per tree and blade length, crown surface per tree and crown volume, trunk diameter and crown volume, total leaf area per tree and crown volume, and total leaf area and trunk diameter could be expressed by the allometric equation y = bxk”

✓ located verbatim in the source · abstract, characters 972–1420 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Mean blade area per class per tree relates linearly to blade fresh weight.

Taxon
CitrusCitrust0
Treatment
mean blade area per class per treee0
Outcome
blade fresh weighte0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationship between mean blade area per class per tree and blade fresh weight was linear and could be expressed by the equation y = a + bx”

✓ located verbatim in the source · abstract, characters 1425–1568 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

An exponential equation describes the trunk diameter and total leaf area relation more precisely than the allometric equation.

Taxon
CitrusCitrust0
Outcome
total leaf areae0
Comparator
allometric equatione0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The relationship between trunk diameter and total leaf area could be expressed more precisely by the exponential equation y = aebx than by the allometric equation”

✓ located verbatim in the source · abstract, characters 1573–1735 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

As the Valencia orange tree ages, its shape changes and the shape of its leaves changes.

Taxon
Valencia orangeCitrus sinensise0
Outcome
its shapee0
Qualifier
the shape of its leavese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“As the Valencia orange tree ages, its shape changes and the shape of its leaves changes”

✓ located verbatim in the source · abstract, characters 1740–1827 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Number of leaves increases more rapidly with age than any other above-ground characteristic of citrus trees.

Taxon
CitrusCitrust0
Outcome
number of leavese0
Direction
increases more rapidlye0
Comparator
any other above-ground characteristic of treese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The number of leaves increases more rapidly with age than does any other above-ground characteristic of trees”

✓ located verbatim in the source · abstract, characters 1829–1938 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Mean leaf-blade area and mean leaf-blade fresh weight per tree decrease with the age of the tree.

Taxon
CitrusCitrust0
Outcome
Mean leaf-blade area per tree and mean leaf-blade fresh weight per treee0
Direction
decreasee0
Qualifier
with the age of treee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Mean leaf-blade area per tree and mean leaf-blade fresh weight per tree decrease with the age of tree”

✓ located verbatim in the source · abstract, characters 1940–2041 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

A power function described leaf-blade area in terms of blade length for four citrus varieties.

Taxon
CitrusCitrust0
Material
four varieties of citruse0
Treatment
blade lengthe0
Outcome
leaf-blade areae0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The power function effectively described leaf-blade area in terms of blade length for four varieties of citrus”

✓ located verbatim in the source · abstract, characters 2055–2165 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient was largest for Valencia orange leaves.

Taxon
Valencia orangeCitrus sinensise0
Material
Valencia orange leavese0
Outcome
allometric coefficiente0
Direction
largeste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was largest for Valencia orange leaves”

✓ located verbatim in the source · abstract, characters 2170–2235 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient varied with the age of the tree from which the leaves were picked.

Taxon
CitrusCitrust0
Outcome
allometric coefficiente0
Qualifier
varied with the age of the tree from which they were pickede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was largest for Valencia orange leaves”

✓ located verbatim in the source · abstract, characters 2170–2235 · show in text ↑
e1

“it varied with the age of the tree from which they were picked”

✓ located verbatim in the source · abstract, characters 2241–2303 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient for Valencia orange leaves was 1.851-1.982.

Taxon
CitrusCitrust0
Material
Valencia orangee0
Outcome
allometric coefficiente0
Value
1.851-1.982e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was distinctive for leaves of each variety of citrus: In Valencia orange n3 = 1.851-1.982, in grapefruit n3 = 1.789, in lemon n3 = 1.784, and in Washington Navel orange n3 = 1.713”

✓ located verbatim in the source · abstract, characters 2308–2514 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient for grapefruit leaves was 1.789.

Taxon
CitrusCitrust0
Material
grapefruite0
Outcome
allometric coefficiente0
Value
1.789e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was distinctive for leaves of each variety of citrus: In Valencia orange n3 = 1.851-1.982, in grapefruit n3 = 1.789, in lemon n3 = 1.784, and in Washington Navel orange n3 = 1.713”

✓ located verbatim in the source · abstract, characters 2308–2514 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient for lemon leaves was 1.784.

Taxon
CitrusCitrust0
Material
lemone0
Outcome
allometric coefficiente0
Value
1.784e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was distinctive for leaves of each variety of citrus: In Valencia orange n3 = 1.851-1.982, in grapefruit n3 = 1.789, in lemon n3 = 1.784, and in Washington Navel orange n3 = 1.713”

✓ located verbatim in the source · abstract, characters 2308–2514 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The allometric coefficient for Washington Navel orange leaves was 1.713.

Taxon
CitrusCitrust0
Material
Washington Navel orangee0
Outcome
allometric coefficiente0
Value
1.713e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Citrus
Citrus · Taxon · picture of the genus (one of its species)Ellen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The allometric coefficient was distinctive for leaves of each variety of citrus: In Valencia orange n3 = 1.851-1.982, in grapefruit n3 = 1.789, in lemon n3 = 1.784, and in Washington Navel orange n3 = 1.713”

✓ located verbatim in the source · abstract, characters 2308–2514 · show in text ↑
t0

“Growth of the Photosynthetic Area of Citrus”

✓ located verbatim in the source · title, characters 0–43 · show in text ↑