By organism › Green plants › Juglandaceae › Juglans californica

Observationobservedoriginal resultprojected

Claim · model-written summary

Wild J. californica had the highest predicted adaptation to future climate in Southern and Central California walnut orchards.

Taxon: J. californicaJuglans californicae0
Outcome: predicted adaptednesse0
Direction: higheste0
Setting: Southern and Central California walnut orchardse0

Verbatim

e0
“wild J. californica has the highest predicted adaptedness to Southern and Central California walnut orchards”
✓ located verbatim in the source · abstract, characters 992–1100

Title

Landscape Genomic Tools Can Inform Future Rootstock and Farmland Selection for an Agricultural Tree Nut From Its Wild Relatives

Ryan C. Buck; Diego J. Zapata; Victoria L. Sork Molecular Ecology 2026. doi:10.1111/mec.70420

Other claims from this paper (2)

Observationobservedoriginal resultprojected

Claim · model-written summary

J. californica was predicted to suit more existing cropland under future climate than J. hindsii.

Taxon: Juglans californicaJuglans californicae0
Outcome: adaptedness to the future climate of more existing croplande0
Direction: moree0
Comparator: J. hindsiie0

Verbatim

e0
“Juglans californica has high adaptedness to the future climate of more existing cropland than J. hindsii does”
✓ located verbatim in the source · abstract, characters 1102–1211

Title

Landscape Genomic Tools Can Inform Future Rootstock and Farmland Selection for an Agricultural Tree Nut From Its Wild Relatives

Ryan C. Buck; Diego J. Zapata; Victoria L. Sork Molecular Ecology 2026. doi:10.1111/mec.70420

Other claims from this paper (2)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.

Taxon: Juglans californicaJuglans californicat0
Material: Drought-induced resproutse0
Outcome: water potentialse0
Direction: highere0
Qualifier: especially during dry periodse0
Comparator: adultse0

Verbatim

e0
“Drought-induced resprouts displayed higher water potentials and photosynthetic rates than adults, especially during dry periods”
✓ located verbatim in the source · abstract, characters 1232–1359

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.
Association Drought-induced resprouts had lower water potentials than fire-induced resprouts.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Observation Irrigated coppice-induced resprouts had the least canker development.
Mechanism Resprouting can temporarily relieve water stress.
Mechanism Xylem water stress and canker disease agents reinforce one another.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.

Taxon: Juglans californicaJuglans californicat0
Material: Drought-induced resproutse0
Outcome: photosynthetic ratese0
Direction: highere0
Comparator: adultse0

Verbatim

e0
“Drought-induced resprouts displayed higher water potentials and photosynthetic rates than adults, especially during dry periods”
✓ located verbatim in the source · abstract, characters 1232–1359

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.
Association Drought-induced resprouts had lower water potentials than fire-induced resprouts.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Observation Irrigated coppice-induced resprouts had the least canker development.
Mechanism Resprouting can temporarily relieve water stress.
Mechanism Xylem water stress and canker disease agents reinforce one another.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought-induced resprouts had lower water potentials than fire-induced resprouts.

Taxon: Juglans californicaJuglans californicat0
Material: Drought-induced resproutse0
Outcome: valuese0
Direction: lowere0
Comparator: fire-induced resproutse0

Verbatim

e0
“Drought-induced resprouts displayed higher water potentials and photosynthetic rates than adults, especially during dry periods, but had lower (more negative) values than fire-induced resprouts”
✓ located verbatim in the source · abstract, characters 1232–1425

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.
Association Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Observation Irrigated coppice-induced resprouts had the least canker development.
Mechanism Resprouting can temporarily relieve water stress.
Mechanism Xylem water stress and canker disease agents reinforce one another.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigated coppice-induced resprouts had the least canker development.

Taxon: Juglans californicaJuglans californicat0
Material: coppice-induced resproutse0
Outcome: canker developmente0
Direction: leaste0

Verbatim

e0
“irrigated coppice-induced resprouts showing the least canker development”
✓ located verbatim in the source · abstract, characters 1545–1617

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.
Association Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.
Association Drought-induced resprouts had lower water potentials than fire-induced resprouts.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Mechanism Resprouting can temporarily relieve water stress.
Mechanism Xylem water stress and canker disease agents reinforce one another.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Resprouting can temporarily relieve water stress.

Taxon: Juglans californicaJuglans californicat0
Outcome: water stresse0
Direction: relievee0
Qualifier: Resproutinge0

Verbatim

e0
“Resprouting can temporarily relieve water stress”
✓ located verbatim in the source · abstract, characters 1632–1680

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.
Association Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.
Association Drought-induced resprouts had lower water potentials than fire-induced resprouts.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Observation Irrigated coppice-induced resprouts had the least canker development.
Mechanism Xylem water stress and canker disease agents reinforce one another.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Xylem water stress and canker disease agents reinforce one another.

Taxon: Juglans californicaJuglans californicat0
Outcome: xylem water stress and canker disease agents feed off one anothere0
Qualifier: xylem water stresse0

Verbatim

e0
“xylem water stress and canker disease agents feed off one another”
✓ located verbatim in the source · abstract, characters 1686–1751

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 38–57

Title

Recovery of California black walnut ( Juglans californica ) trees from drought, fire, and biotic stress: Is resprouting an elixir?

Lauren M. Tucker; Edward G. Bobich; Stephen D. Davis; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70223

Other claims from this paper (8)

Association Drought-induced resprouts had higher water potentials than adults, particularly in dry periods.
Association Drought-induced resprouts had higher photosynthetic rates than adults, particularly in dry periods.
Association Drought-induced resprouts had lower water potentials than fire-induced resprouts.
Intervention effect Non-irrigated trees had greater canker initiation than irrigated trees.
Intervention effect Non-irrigated trees had greater canker elongation rates than irrigated trees.
Observation Irrigated coppice-induced resprouts had the least canker development.
Mechanism Resprouting can temporarily relieve water stress.
Mechanism Repeated drought, fire and disease reduce walnut resilience.

Observationobservedoriginal resultsimulated

Claim · model-written summary

The clade containing Juglans hindsii and Juglans californica diverged earliest.

Taxon: Juglans hindsii and Juglans californicaJuglans californicaJuglans hindsiie0
Outcome: diverging earlieste0
Direction: earlieste0

Verbatim

e0
“the clade comprising Juglans hindsii and Juglans californica diverging earliest.”
✓ located verbatim in the source · abstract, characters 812–892

Title

Integrated chloroplast genomics and whole‐genome resequencing reveals demographic history and selection signatures of black walnuts

Hang Ye; Hengzhao Liu; Huijuan Zhou; et al. The Plant Genome 2025. doi:10.1002/tpg2.70172

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Stem stiffness declined with leaf node frequency.

Taxon: Juglans californicaJuglans californicat0
Organ / stage: leaf nodese0
Outcome: stiffness of the steme0
Direction: inversely proportionale0

Verbatim

e0
“The stiffness of the stem was inversely proportional to the frequency of leaf nodes”
✓ located verbatim in the source · abstract, characters 715–798

t0
“Juglans californica”
✓ located verbatim in the source · title, characters 67–86

Title

Dense but flexible wood – How leaf nodes impact xylem mechanics in Juglans californica

Brett A. Bergman; Edward G. Bobich; Stephen D. Davis; et al. IAWA Journal - KU Leuven/IAWA Journal 2018. doi:10.1163/22941932-20170205

Other claims from this paper (5)

Association Xylem density declined with leaf node frequency in adult trees.
Observation Node and gap tissue contained twisted and contorted cells.
Mechanism The authors propose that node cells may absorb compressive and tensile stresses.
Mechanism The authors link node frequency to vertical expansion, light capture, and wind-stress damping.
Observation Ultimate stems were the most bendable.

Juglans californica 30 claims

30 claims