Abstract
The purpose of this study is to analyze the data of root biomasses measured in a sapling cultivation experiment reported by Oda et al. (2009). In the experiment, Eucalyptus rudis × E. camaldulensis, E. camaldulensis and E. sargentii were cultivated in a glasshouse at Tsukuba, Japan, and those were watered with 0, 100 and 200 mmol-NaCl/L solution. The dry weight of the roots tended to decrease with increase of NaCl concentration. The significant relationship were observed between the tree height and the dry weight of the roots (r = 0.818-0.851, p < 0.001). These suggest that the root biomass of the tree species may be able to be estimated by the allometry equations. The biomass ratios of the root to the shoot did not increase with NaCl concentration despite that the reduction of shoot growth is generally much greater than the reduction of root growth under saline condition. The biomass ratio of the root to shoot of Eucalyptus saplings might not increase with NaCl concentration because same tendency was reported by Marcar (1993).
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Claims 3
Claim · model-written summary
Root dry weight tended to decline as NaCl concentration increased.
- Taxon
- Eucalyptus rudis × E. camaldulensis
Eucalyptus rudise1 - Treatment
- NaCl concentratione0
- Outcome
- dry weight of the rootse0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry weight of the roots tended to decrease with increase of NaCl concentration.”
e1“Eucalyptus rudis × E. camaldulensis, E. camaldulensis and E. sargentii”
Claim · model-written summary
Tree height and root dry weight had a significant positive relationship.
- Taxon
- Eucalyptus rudis × E. camaldulensisEucalyptus rudist0
- Organ / stage
- rootse0
- Outcome
- dry weight of the rootse0
- Qualifier
- r = 0.818-0.851, p < 0.001e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The significant relationship were observed between the tree height and the dry weight of the roots (r = 0.818-0.851, p < 0.001).”
t0“Eucalyptus rudis × E. camaldulensis, E. camaldulensis and E. sargentii”
Claim · model-written summary
Root-to-shoot biomass ratios did not increase with NaCl concentration.
- Taxon
- Eucalyptus rudis × E. camaldulensisEucalyptus rudise1
- Treatment
- NaCl concentratione0
- Outcome
- biomass ratios of the root to the shoote0
- Direction
- did not increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass ratios of the root to the shoot did not increase with NaCl concentration”
e1“Eucalyptus rudis × E. camaldulensis, E. camaldulensis and E. sargentii”