Claim · model-written summary
Needle δ13C correlated positively with dry matter production.
- Taxon
- white spruce
Picea glaucat0 - Organ / stage
- needlee0
- Compound
- δ 13 Ce0
- Outcome
- dry matter productione0
- Direction
- positivee0
Not reportedMaterialGeneInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The positive relationships between needle δ 13 C, WUE and dry matter production”
t0“white spruce”
Title
N. J. LIVINGSTON; R. D. GUY; Z. J. SUN; et al. Plant Cell & Environment 1999. doi:10.1046/j.1365-3040.1999.00400.x
Other claims from this paper (11)
- Observation Cross ranking by needle δ13C persisted across water and nitrogen treatments.
- Association There was no significant genetic by environment interaction.
- Association Needle δ13C correlated positively with water use efficiency.
- Intervention effect Nitrogen stressed seedlings had the lowest needle δ13C under both water conditions.
- Association Needle nitrogen content correlated positively with δ13C.
- Intervention effect Lower nitrogen supply appeared to increase stomatal conductance.
- Intervention effect Lower nitrogen supply appeared to lower water use efficiency.
- Association Intrinsic water use efficiency and photosynthetic nitrogen use efficiency were negatively correlated.
- Observation NUE varied significantly among genotypes and persisted across treatments.
- Observation The authors found no detectable anaplerotic carbon fixation effect.
- Method / resource Using 29‰ for net discrimination gave excellent agreement between gas exchange and δ13C C i/C a estimates.