Claim · model-written summary
Chemical vegetation control significantly improved hybrid spruce growth at both levels.
PiceaNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“hybrid spruce”
e4“Growth was significantly improved by both levels of chemical vegetation control”
Title
Phil LePage; K. Dave Coates Canadian Journal of Forest Research 1994. doi:10.1139/x94-031
Other claims from this paper (15)
- Observation Vegetation control had a major impact on the growth of planted lodgepole pine seedlings.
- Observation Vegetation control had a major impact on the growth of planted hybrid spruce seedlings.
- Observation The timing of control treatments had a minor influence on lodgepole pine growth.
- Observation The timing of control treatments had a minor influence on hybrid spruce growth.
- Intervention effect Fifth-year lodgepole pine height and diameter were equally poor in manual cutting and control treatments.
- Intervention effect Fifth-year hybrid spruce height and diameter were equally poor in manual cutting and control treatments.
- Intervention effect Chemical vegetation control significantly improved lodgepole pine growth at both levels.
- Observation After 5 years, the two levels of chemical vegetation control gave no differences in lodgepole pine growth.
- Observation After 5 years, the two levels of chemical vegetation control gave no differences in hybrid spruce growth.
- Association Lodgepole pine height and diameter improved as thimbleberry cover was reduced.
- Association Hybrid spruce diameter improved as thimbleberry cover was reduced.
- Association Below 5% thimbleberry cover, lodgepole pine growth increased dramatically, suggesting a response threshold.
- Association Below 5% thimbleberry cover, hybrid spruce growth increased dramatically, suggesting a response threshold.
- Association Frost damage to hybrid spruce seedlings reduced their total height as vegetation cover was lowered.
- Association Hybrid spruce height growth was better at very low or moderately high thimbleberry cover than at moderate to low levels.