Claim · model-written summary
After five years, mean estimated hybrid stem volume was 3.9 times that of P. tremula.
- Taxon
- P. tremula
Populus tremulae0 - Material
- hybridse0
- Outcome
- mean estimated stem volumee0
- Value
- 3.9 timese0
- Comparator
- P. tremulae0
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 5 years, mean estimated stem volume of the hybrids was 3.9 times that of 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.
- Observation The growth period was 143–158 days for hybrid clones versus 112 days for 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.
- 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.