Abstract
Container-grown Viburnum plicatum Thunb. var. tomentosum (Thunb.) Miq. `Mariesii' were planted in unamended planting holes, tilled plots, and tilled plots amended with aged pine bark. A 36-day drought was initiated 108 days after planting. Amending induced N deficiencies, reduced shoot growth, and increased root growth. Plants harvested from tilled and planting-hole plots at drought initiation had 63% and 68% more dry weight, respectively, than plants from amended plots. Between 8 and 19 days after drought (DAD) initiation, plants from tilled plots maintained higher relative leaf water content (RLWC) than plants from planting holes. Plants in amended plots maintained higher RLWC than both other treatments between 7 and 33 DAD. Amended and tilled treatments had higher relative leaf expansion rates (RLERs) than the planting-hole treatment 8, 11, 13, and 15 DAD. As the drought lengthened, plants in amended plots maintained higher RLERs than plants in tilled plots. While plants in pine bark-amended plots were more drought tolerant than those in tilled plots, it is unclear if increased drought tolerance was caused by the improved rooting environment or N deficiency.
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Claims 10
Claim · model-written summary
Pine bark amendment induced nitrogen deficiencies in Viburnum.
- Taxon
- Viburnum plicatum
Viburnum plicatumt0 - Treatment
- Amendinge0
- Outcome
- N deficienciese0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amending induced N deficiencies, reduced shoot growth, and increased root growth.”
t0“Growth and Drought Tolerance of Viburnum plicatum var. tomentosum `Mariesii' in Pine Bark-amended Soil”
Claim · model-written summary
Amendment reduced Viburnum shoot growth.
- Taxon
- Viburnum plicatumViburnum plicatumt0
- Treatment
- Amendinge0
- Outcome
- shoot growthe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amending induced N deficiencies, reduced shoot growth, and increased root growth.”
t0“Growth and Drought Tolerance of Viburnum plicatum var. tomentosum `Mariesii' in Pine Bark-amended Soil”
Claim · model-written summary
Amendment increased Viburnum root growth.
- Taxon
- Viburnum plicatumViburnum plicatumt0
- Treatment
- Amendinge0
- Outcome
- root growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amending induced N deficiencies, reduced shoot growth, and increased root growth.”
t0“Growth and Drought Tolerance of Viburnum plicatum var. tomentosum `Mariesii' in Pine Bark-amended Soil”
Claim · model-written summary
At drought initiation, tilled plots produced 63% more dry weight than amended plots.
Verbatim
e0“Plants harvested from tilled and planting-hole plots at drought initiation had 63% and 68% more dry weight, respectively, than plants from amended plots.”
Claim · model-written summary
At drought initiation, planting-hole plots produced 68% more dry weight than amended plots.
Verbatim
e0“Plants harvested from tilled and planting-hole plots at drought initiation had 63% and 68% more dry weight, respectively, than plants from amended plots.”
Claim · model-written summary
Tilled plots maintained higher leaf water content than planting holes at 8–19 days after drought onset.
Verbatim
e0“Between 8 and 19 days after drought (DAD) initiation, plants from tilled plots maintained higher relative leaf water content (RLWC) than plants from planting holes.”
Claim · model-written summary
Amended plots maintained higher leaf water content than both other treatments at 7–33 days after drought onset.
Verbatim
e0“Plants in amended plots maintained higher RLWC than both other treatments between 7 and 33 DAD.”
Claim · model-written summary
Amended and tilled plots had higher leaf expansion rates than planting-hole treatment at specified days.
- Treatment
- Amended and tilled treatmentse0
- Outcome
- relative leaf expansion rates (RLERs)e0
- Direction
- highere0
- Qualifier
- 8, 11, 13, and 15 DADe0
- Comparator
- planting-hole treatmente0
Not reportedTaxon
Verbatim
e0“Amended and tilled treatments had higher relative leaf expansion rates (RLERs) than the planting-hole treatment 8, 11, 13, and 15 DAD.”
Claim · model-written summary
Amended plots maintained higher leaf expansion rates than tilled plots as drought continued.
Verbatim
e0“As the drought lengthened, plants in amended plots maintained higher RLERs than plants in tilled plots.”
Claim · model-written summary
Plants in pine bark amended plots were more drought tolerant than plants in tilled plots.
Verbatim
e0“plants in pine bark-amended plots were more drought tolerant than those in tilled plots”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.