Claim · model-written summary
Phosphorus fertilization slightly increased female flower number at age five.
- Taxon
- Alnus rubra
Alnus rubrat0 - Treatment
- Phosphorus fertilizatione2
- Outcome
- number of female flowers per treee0
- Direction
- positivee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it had a positive but small effect on the number of female flowers per tree at age 5 years”
t0“Alnus rubra”
e2“Phosphorus fertilization”
Title
Effects of irrigation, spacing and fertilization on flowering and growth in young Alnus rubra
C. A. Harrington; D. S. Debell Tree Physiology 1995. doi:10.1093/treephys/15.7-8.427
Other claims from this paper (11)
- Intervention effect Low irrigation gave the greatest fraction of flowering trees and flowers per tree.
- Intervention effect Low irrigation gave the least height and diameter growth.
- Intervention effect Phosphorus fertilization did not affect flowering percentage or five year growth.
- Intervention effect Wider spacing produced larger trees and higher flowering and survival.
- Association Flowering percentage increased with tree size within irrigation regimes.
- Observation Flowering varied substantially among families.
- Association Tree size and flowering traits had positive but low correlations.
- Association The irrigation effect on flowering differed among families at ages four and five.
- Observation By age six, more trees flowered and irrigation differences were reduced.
- Intervention effect Close spacing caused crown recession and mortality by age five.
- Recommendation Seed production spacing below 2 m was recommended only with roguing by age two to three.