Claim · model-written summary
The growth period was 143–158 days for hybrid clones versus 112 days for P. tremula.
- Taxon
- P. tremula
Populus tremulae0
- Material
- four hybrid clonese0
- Outcome
- growth periode0
- Direction
- variede0
- Value
- 143–158 dayse0
- Qualifier
- 112 dayse0
- Comparator
- P. tremulae0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The growth period varied from 143–158 days for the four hybrid clones, and was 112 days for P. tremula”
Title
Growth and phenology of hybrid aspen clones (Populus tremula L. x Populus tremuloides Michx.)
Qibin Yu; P. Tigerstedt; Matti Haapanen Silva Fennica 2001. doi:10.14214/sf.600
Other claims from this paper (7)
- Observation Phenological and growth traits differed among hybrid clones and P. tremula.
- Association Growth period and yield were highly significantly correlated.
- Observation Hybrid height grew 4.2 cm per 7 days in year three versus 2.4 for P. tremula.
- Observation Hybrid height grew 6.4 cm per 7 days in year four versus 2.9 for P. tremula.
- Observation After five years, mean estimated hybrid stem volume was 3.9 times that of P. tremula.
- Association Clone-by-year interaction was significant for height, diameter and volume growth.
- Mechanism The authors attribute hybrid vigor mainly to a longer growth period.