Claim · model-written summary
High nitrogen increased frost damage by 24%.
- Taxon
- Pinus pinea L.
Pinus pineat0 - Treatment
- high N fertilizatione0
- Outcome
- frost damagee0
- Direction
- increasede0
- Value
- 24%e0
- Comparator
- low-N plantse1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high N fertilization also increased frost damage (24%)”
t0“Pinus pinea L. seedlings”
e1“Relative to low-N plants”
Title
P. Villar-Salvador; J. L. Penuelas; D. F. Jacobs Tree Physiology 2013. doi:10.1093/treephys/tps133
Other claims from this paper (16)
- Intervention effect High nitrogen produced larger pine seedlings than low nitrogen.
- Intervention effect High nitrogen increased stomatal conductance by 27%.
- Intervention effect High nitrogen increased residual transpiration by 11%.
- Intervention effect High nitrogen increased new root growth capacity and caused stomatal closure at higher water potential.
- Intervention effect High nitrogen decreased plasmalemma stability to dehydration by 9%.
- Intervention effect Drought hardening decreased frost damage by 21%.
- Intervention effect Drought hardening decreased stomatal conductance by 31%.
- Intervention effect Drought hardening decreased residual transpiration by 24%.
- Intervention effect Drought hardening increased plasmalemma stability to dehydration by 8%.
- Intervention effect Drought hardening increased tissue non-structural carbohydrates and nitrogen concentration, especially with high fertilization.
- Association Frost damage was positively related to plasmalemma stability to dehydration.
- Association Frost damage and plasmalemma stability were negatively related to reducing soluble sugar concentration.
- Observation Moderate and strong drought hardening treatments did not differ.
- Intervention effect Neither nitrogen nor drought hardening clearly affected seedling performance under xeric outplanting.
- Intervention effect Fertilization increased growth under mesic outplanting.
- Intervention effect Drought hardening decreased growth under mesic outplanting.