Claim · model-written summary
Current foliage mass and area and new twig mass were significantly greater in fertilized than in control red pine.
Verbatim
e2“For a similar-diameter tree, current foliage mass and area and new twig mass were significantly greater for fertilized than for control red pine and ponderosa pine”
Title
Influence of fertilization on the allometric relations for two pines in contrasting environments
Stith T. Gower; Brent E. Haynes; Karin S. Fassnacht; et al. Canadian Journal of Forest Research 1993. doi:10.1139/x93-212
Other claims from this paper (11)
- Intervention effect Fertilization did not significantly affect the allometric relations between stem or branch mass and stem diameter of red pine.
- Intervention effect Fertilization did not significantly affect the allometric relations between stem or branch mass and stem diameter of ponderosa pine.
- Intervention effect Current foliage mass and area and new twig mass were significantly greater in fertilized than in control ponderosa pine.
- Observation New foliage mass and area of red pine increased in the upper and middle canopy after fertilization.
- Observation New foliage mass and area of ponderosa pine increased in the middle and lower canopy after fertilization.
- Intervention effect Projected leaf area and total foliage mass of red pine were significantly greater in fertilized than in control trees.
- Intervention effect Leaf area and total foliage mass of ponderosa pine did not differ between fertilized and control trees because fertilization decreased leaf longevity.
- Intervention effect The ratio of leaf area to sapwood cross-sectional area at the base of the live crown was significantly greater in fertilized than in control red pine.
- Intervention effect The ratio of leaf area to sapwood cross-sectional area at the base of the live crown was significantly greater in fertilized than in control ponderosa pine.
- Intervention effect The ratio of leaf area to sapwood cross-sectional area at breast height in red pine was 0.14 and was greater, not significantly, in fertilized trees.
- Intervention effect The ratio of leaf area to sapwood cross-sectional area at breast height in ponderosa pine was 0.11 and was greater, not significantly, in fertilized trees.