Abstract
Two highbush blueberry cultivars (Blueray and seedling selection 50-6-9) were grown at various pH levels in water cultures. Within the pH range 3.5 to 6.0, growth of Blueray did not appear to be limited because of the direct effects of pH. At pH 2.5, however, growth was nonexistent and at pH 3.0 it was restricted. Growth of 50-6-9 was significantly greater at pH 4.0 and 5.0 than at pH 3.0 or 6.0. Plant roots became progressively darker with increasing pH above 4.0 to 4.5. In general, root nutrient levels, Ca excepted, were higher than foliar nutrient levels, although root and foliar Mg levels were not very different except at pH 3.0. Root Mn at pH 5.0 and 6.0 was 10 to 20 times greater than at pH 3.0 or 4.0.
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Claims 8
Claim · model-written summary
Blueray growth was apparently not limited by direct pH effects from 3.5 to 6.0.
- Taxon
- HIGHBUSH BLUEBERRY
Vaccinium corymbosumt0 - Material
- Blueraye0
- Treatment
- pH range 3.5 to 6.0e0
- Outcome
- growthe0
- Direction
- did not appear to be limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Within the pH range 3.5 to 6.0, growth of Blueray did not appear to be limited because of the direct effects of pH.”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Blueray had no growth at pH 2.5.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Treatment
- pH 2.5e0
- Outcome
- growthe0
- Direction
- nonexistente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At pH 2.5, however, growth was nonexistent”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Blueray growth was restricted at pH 3.0.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Treatment
- pH 3.0e0
- Outcome
- restrictede0
- Direction
- restrictede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at pH 3.0 it was restricted”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Selection 50-6-9 grew significantly more at pH 4.0 and 5.0 than at 3.0 or 6.0.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Material
- 50-6-9e0
- Treatment
- pH 4.0 and 5.0e0
- Outcome
- Growthe0
- Direction
- greatere0
- Comparator
- pH 3.0 or 6.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth of 50-6-9 was significantly greater at pH 4.0 and 5.0 than at pH 3.0 or 6.0.”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Blueberry roots darkened progressively as pH rose above 4.0 to 4.5.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Organ / stage
- rootse0
- Treatment
- increasing pH above 4.0 to 4.5e0
- Outcome
- progressively darkere0
- Direction
- darkere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant roots became progressively darker with increasing pH above 4.0 to 4.5.”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Root nutrient levels generally exceeded foliar levels except for calcium.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Organ / stage
- roote0
- Outcome
- nutrient levelse0
- Direction
- highere0
- Qualifier
- Ca exceptede0
- Comparator
- foliar nutrient levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, root nutrient levels, Ca excepted, were higher than foliar nutrient levels”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Root and foliar magnesium levels were similar except at pH 3.0.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Outcome
- root and foliar Mg levelse0
- Direction
- not very differente0
- Qualifier
- except at pH 3.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root and foliar Mg levels were not very different except at pH 3.0”
t0“HIGHBUSH BLUEBERRY”
Claim · model-written summary
Root manganese at pH 5.0 and 6.0 was 10 to 20 times that at pH 3.0 or 4.0.
- Taxon
- HIGHBUSH BLUEBERRYVaccinium corymbosumt0
- Organ / stage
- Roote0
- Treatment
- pH 5.0 and 6.0e0
- Outcome
- Root Mne0
- Direction
- greatere0
- Value
- 10 to 20 timese0
- Comparator
- pH 3.0 or 4.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root Mn at pH 5.0 and 6.0 was 10 to 20 times greater than at pH 3.0 or 4.0.”
t0“HIGHBUSH BLUEBERRY”
The same questions in other papers
ph · growth · Vaccinium corymbosum (highbush blueberry)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
1 paper more in this group
See all 5 papers →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.