Claim · model-written summary
Relative apple leaf nitrogen distribution could estimate leaf photosynthetic potential and relative PAR.
- Taxon
- apple
Malus domesticat0 - Outcome
- leaf photosynthetic potential and PARre0
- Comparator
- relative leaf nitrogen concentration (Nlr)e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf photosynthetic potential and PARr could be estimated according to the spatial distribution of relative leaf nitrogen concentration (Nlr)”
t0“apple orchards”
Title
[Leaf photosynthetic potential in canopy layers of un-thinned and thinned apple orchards].
Ji-xiang Zhang; Qin-ping Wei; Jing Zhang; et al. PubMed 2009
Other claims from this paper (11)
- Intervention effect Thinning improved the apple canopy radiation environment.
- Intervention effect Radiation was more uniform in thinned than unthinned apple canopy.
- Observation The invalid canopy space in thinned apple orchards approached zero.
- Observation Minimum mean relative PAR in unthinned apple orchards was 17%.
- Observation Space below 0.3 relative canopy height in unthinned apple orchards was invalid.
- Intervention effect Thinned orchards had improved apple leaf photosynthetic efficiency.
- Intervention effect Thinning increased apple photosynthetic rate by 7.8% at the middle canopy.
- Intervention effect Thinning increased apple photosynthetic rate by 10.2% at the canopy bottom.
- Intervention effect Apple maximum carboxylation and electron transfer rates rose in thinned orchards.
- Association Apple leaf photosynthetic potential was significantly correlated with leaf nitrogen concentration.
- Association Apple leaf nitrogen concentration was strongly correlated with relative PAR.