Abstract
To increase root fibrosity, acorns of northern red oak ( Quercus rubra L.) were germinated and subjected to several radicle clipping (+/-) and K-IBA concentration treatments combintations prior to planting. Taproots and laterals ≥ 1 mm in diameter at the point of origin were counted. Low concentrations of K-IBA (0-4000 ppm) resulted in four root morphologies: 1) a single taproot and 3-6 laterals (no clipping/no K-IBA), 2) 4-5 taproots and 1-3 laterals (clipped only), 3) a single taproot and 5-12 laterals (not clipped/K-IBA) and 4) 6-12 taproots and 1-2 laterals. High concentrations of K-IBA (4000-10,000 ppm) `clipped' unclipped radicles resulting in root systems similiar to those clipped by hand. Stem height was unaffected by treatment. Radicle-clipping may increase stem caliper. K-IBA treatments may decrease root dry weight.
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Claims 8
Claim · model-written summary
Untreated, unclipped acorns formed one taproot and 3-6 laterals.
- Taxon
- NORTHERN RED OAK
_(14092717698).jpg?width=60)
Quercus rubrat0 - Treatment
- no clipping/no K-IBAe0
- Outcome
- a single taproot and 3-6 lateralse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(14092717698).jpg?width=500)
Verbatim
e0“a single taproot and 3-6 laterals (no clipping/no K-IBA)”
t0“NORTHERN RED OAK”
Claim · model-written summary
Clipping alone yielded 4-5 taproots and 1-3 laterals.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- clipped onlye0
- Outcome
- 4-5 taproots and 1-3 lateralse0
Not reportedComparatorDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4-5 taproots and 1-3 laterals (clipped only)”
t0“NORTHERN RED OAK”
Claim · model-written summary
K-IBA without clipping yielded one taproot and 5-12 laterals.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- not clipped/K-IBAe0
- Outcome
- a single taproot and 5-12 lateralse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a single taproot and 5-12 laterals (not clipped/K-IBA)”
t0“NORTHERN RED OAK”
Claim · model-written summary
The fourth low K-IBA and clipping combination yielded 6-12 taproots and 1-2 laterals.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Outcome
- 6-12 taproots and 1-2 lateralse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“6-12 taproots and 1-2 laterals”
t0“NORTHERN RED OAK”
Claim · model-written summary
High K-IBA concentrations clipped radicles chemically, producing root systems like hand clipping.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- High concentrations of K-IBA (4000-10,000 ppm)e0
- Outcome
- root systems similiar to those clipped by hande0
- Comparator
- those clipped by hande0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High concentrations of K-IBA (4000-10,000 ppm) `clipped' unclipped radicles resulting in root systems similiar to those clipped by hand.”
t0“NORTHERN RED OAK”
Claim · model-written summary
Stem height was unaffected by treatment.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- treatmente0
- Outcome
- Stem heighte0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stem height was unaffected by treatment.”
t0“NORTHERN RED OAK”
Claim · model-written summary
Radicle clipping may increase stem caliper.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- Radicle-clippinge0
- Outcome
- stem calipere0
- Direction
- increasee0
- Qualifier
- maye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Radicle-clipping may increase stem caliper.”
t0“NORTHERN RED OAK”
Claim · model-written summary
K-IBA treatment may reduce root dry weight.
- Taxon
- NORTHERN RED OAKQuercus rubrat0
- Treatment
- K-IBA treatmentse0
- Outcome
- root dry weighte0
- Direction
- decreasee0
- Qualifier
- maye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K-IBA treatments may decrease root dry weight.”
t0“NORTHERN RED OAK”