Search claims · PlantClaims

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The main-stem volume to whole-stem volume character differed significantly.

Taxon: Paulownia fortuneiPaulownia fortuneit0
Outcome: main stem volume whole-stem volumee0

Not reportedDirection

Verbatim

t0
“Paulownia fortunei”
✓ located verbatim in the source · title, characters 53–71

e0
“One natural stem-join character,which was main stem volume whole-stem volume,had significant difference”
✓ located verbatim in the source · abstract, characters 1750–1853

Title

Genetic Variation of Natural Stem-join Characters of Paulownia fortunei Clones

Wenping Yang Xibei Linxueyuan xuebao 2008

Other claims from this paper (10)

Observation Eight stem-join traits had high variation, with coefficient of variation at least 30.
Observation Eight stem-join traits had intermediate variation.
Observation Six stem-join traits had low variation.
Association Stem-join height was important to overall stem-join character expression.
Recommendation Stem straightness was key for genetic improvement of stem-join characters.
Observation Fifteen stem-join characters differed extremely significantly.
Observation Six stem-join characters had no significant difference.
Observation Natural stem-join characters differed extremely significantly among clones.
Method / resource Duncan analysis grouped the stem-join characters.
Method / resource Principal component analysis identified three components and their contribution and cumulative ratios.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Volume of stem, CAI of stem volume and CAI in height followed MAI of stem volume in genetic advance.

Taxon: Tectona grandisTectona grandist0
Outcome: volume of stem, CAI of stem volume, and CAI in heighte1
Direction: followed bye1

Verbatim

t0
“Teak ( Tectona grandis Linn. F.)”
✓ located verbatim in the source · title, characters 32–64

e1
“which was followed by volume of stem, CAI of stem volume, and CAI in height”
✓ located verbatim in the source · abstract, characters 1444–1519

Title

Genetic Diversity Assessment of Teak ( Tectona grandis Linn. F.) in a Clonal Seed Orchard

Hiranmayee Nayak; Animesh Sinha; Nirakar Bhol Journal of Sustainable Forestry 2025. doi:10.1080/10549811.2025.2516823

Other claims from this paper (13)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Joint stem volume, primary stem volume and primary stem tapering grade were principal stem form factors.

Taxon: paulowniaPaulowniat0
Organ / stage: joint steme0
Outcome: stem form characteristicse0
Qualifier: volume of joint stem,volume of primary stem and the tapering grade of the primary steme0

Not reportedDirection

Verbatim

e0
“The three principal factors affecting the stem form characteristics are volume of joint stem,volume of primary stem and the tapering grade of the primary stem.”
✓ located verbatim in the source · abstract, characters 398–557

t0
“paulownia”
✓ located verbatim in the source · title, characters 102–111

Title

Determination of the types of joint stem and analysis of the stem form correlative characteristics of paulownia

Yong Cui He'nan nongye daxue xuebao 2001

Other claims from this paper (3)

Observation Paulownia joint stems were divided into difficult, discontinuous and continuous types.
Observation Nineteen of 23 stem form characteristics differed significantly.
Recommendation Continuous joint stem is the recommended selection direction.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The second principal characteristics included fruit and stem unit volume weight and stem color.

Outcome: units volume weight of fruit, units volume weight of stem, stem colore0

Not reportedTaxon

Verbatim

e0
“The second principal characteristics were the units volume weight of fruit, units volume weight of stem, stem color and pericarpic percentage.”
✓ located verbatim in the source · abstract, characters 842–984

Title

Study on the Evaluation of Stem and Fruit Characteristics of Akebia trifoliata

Xiong Da 2005

Other claims from this paper (7)

Observation The Hefeng source ranked first in a synthetic evaluation of nine traits.
Observation Sources from Yichang, Shimen, Yongding and Cili ranked second.
Observation The first principal component emphasized pericarp thickness, fruit weight and seed weight.
Observation The first principal component also emphasized pericarp weight and stem venation.
Observation Pericarp percentage was also a second principal characteristic.
Recommendation Selecting stem color may reduce decline in fruit unit volume weight.
Recommendation The authors prioritized fruit traits, stem color and stem unit volume weight in selection.

Method / resourceauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

For plantation grown coniferous trees, parabolic volume is ordinarily a close approximation to total stem volume.

Taxon: coniferous treese1
Outcome: close approximation to total stem volumee1
Qualifier: ordinarilye1
Comparator: total stem volumee1

Verbatim

t0
“VOLUME MEASUREMENT OF SINGLE TREES”
✓ located verbatim in the source · title, characters 0–34

e1
“For plantation grown coniferous trees, and for "second growth" crops in general, experience suggests that parabolic volume will ordinarily be found to be a close approximation to total stem volume”
✓ located verbatim in the source · abstract, characters 967–1163

Title

VOLUME MEASUREMENT OF SINGLE TREES

H. R. GRAY Australian Forestry 1944. doi:10.1080/00049158.1944.10675744

Other claims from this paper (8)

Associationauthor interpretationoriginal resultmeasured

Claim · model-written summary

Stem flow volume contributed more to nitrogen input than concentration.

Outcome: nitrogen inpute0
Qualifier: Stem flow volumee0
Comparator: concentratione0

Not reportedTaxonDirection

Verbatim

e0
“Stem flow volume played a more significant role in nitrogen input than concentration.”
✓ located verbatim in the source · abstract, characters 1631–1716

Title

Effects of bark texture and lichen cover on stem flow volume and chemistry.

K Smith Deep Blue (University of Michigan) 2004

Other claims from this paper (8)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Stem volume correlated most with simple stem girth G.

Taxon: Rubber TreeHevea brasiliensist0
Outcome: tree volumee0
Direction: more correlatede0
Comparator: simple Ge0

Not reportedMaterial

Verbatim

e0
“tree volume is more correlated with simple G (stem girth at 1.3m height from ground)”
✓ located verbatim in the source · abstract, characters 837–921

t0
“Rubber Tree”
✓ located verbatim in the source · title, characters 55–66

Title

Allometric Relationships for Estimating Stem Volume of Rubber Tree (Hevea Brasiliensis Muell-Arg.) in Bangladesh

Zahirul Islam SM Open Access Journal of Science 2017. doi:10.15406/oajs.2017.01.00006

Other claims from this paper (5)

Method / resource The allometric equations were highly significant but varied considerably.
Method / resource G squared and log G did not improve allometric strength over simple G.
Method / resource Combining height and girth slightly improved fit.
Method / resource Girth at breast height gave strong stem-volume estimation accuracy with R2 0.953.
Recommendation The authors recommend G squared as the independent variable for stem-volume estimation.

Method / resourceobservedoriginal resultbasis n/a

Claim · model-written summary

Stand volume tables for Uttar Pradesh chirpine estimate total stem volume.

Taxon: Pinus roxburghiiPinus roxburghiit0
Outcome: total stem volumee1
Setting: Uttar Pradeshe0

Not reportedComparator

Verbatim

t0
“Pinus roxburghii”
✓ located verbatim in the source · title, characters 49–65

e0
“Stand Volume Tables for Uttar Pradesh chirpine has been compiled”
✓ located verbatim in the source · abstract, characters 75–139

e1
“It gives estimates of (i)total stem volume and (ii)stand and stem timber for known crop diameter, crop basal area and top height”
✓ located verbatim in the source · abstract, characters 141–269

Title

Stand Volume Tables for Uttar Pradesh Chirpine ( Pinus roxburghii )

Sarvesh Pal Singh Indian Forester 1979

Other claims from this paper (1)

Method / resource Stand volume tables for Uttar Pradesh chirpine estimate stand and stem timber.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The stem volume growth response to silvicultural treatment declined as crown volume increased.

Taxon: loblolly pine (Pinus taeda L.)Pinus taedae0
Organ / stage: crowne1
Treatment: silvicultural treatmente1
Outcome: stem volume growth responsee1
Direction: decreasede1

Verbatim

e0
“loblolly pine (Pinus taeda L.)”
✓ located verbatim in the source · abstract, characters 72–102

e1
“The stem volume growth response to silvicultural treatment decreased with increasing crown volume”
✓ located verbatim in the source · abstract, characters 1662–1759

Title

Will crown ideotype help determine optimum varietal silviculture

Timothy J. Albaugh; Thomas R. Fox; Marco A. Yáñez; et al. 2016

Other claims from this paper (7)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Stem volume was strongly related to rooting ability.

Taxon: Eucalyptus grandisEucalyptus grandist0
Organ / stage: Stem volumee0
Outcome: rooting abilitye0

Not reportedDirection

Verbatim

e0
“Stem volume was well related to rooting ability”
✓ located verbatim in the source · abstract, characters 989–1036

t0
“Eucalyptus grandis”
✓ located verbatim in the source · title, characters 39–57

Title

Contributions of the stem to rooting inEucalyptus grandisHill ex Maid, stem cuttings

P. J. Wilson Journal of Horticultural Science 1994. doi:10.1080/00221589.1994.11516539

Other claims from this paper (9)

Intervention effect An extra basal wound increased cutting rooting.
Intervention effect Girdling intact shoots reduced rooting in their harvested cuttings.
Intervention effect Girdling cuttings at setting had little effect on rooting.
Mechanism Root distribution in additionally wounded cuttings suggested changed efflux from internal phloem.
Mechanism Root distribution suggested increased water uptake in additionally wounded cuttings.
Observation One-leaf cuttings had more roots from the leaf-trace sector than from the absent-leaf trace.
Observation Two-leaf cuttings generally had uniform circumferential root distribution.
Observation Half-round basal cuttings rooted more profusely at the lower emergence site.
Observation Red sectors of anthocyanin-pigmented lateral coppice cuttings rooted less than expected.

“stem volume”

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