Abstract
Experiments were conducted to investigate appropriate concentrations of plant growth retardants (PGRs) and duration of seed soaking in order to suppress hypocotyl length and plug seedling height of 2 tomato cultivars (Lycopersicum esculentum Mill. cv. Seogeon and Seokwang). Daminozide (B-9), uniconazole (Sumagic) and ethephon (Florel) were used as PGRs. Seeds were first soaked in 15 ml PGR solutions in an environment controlled chamber (25°C) for 1, 3, or 5 days. Then seeds were washed in tap water and were dried in a 5°C chamber for 1 day. Finally, dried seeds were used in both a germination test in a chamber and a growing test in a greenhouse. Differences among cultivars in response were observed in germination and seedling growth. Although germination in petri dishes and seedling emergence in plug trays declined, suppression of hypocotyl length and seedling height was evident in uniconazole treatments in both cultivars, duration of seed soaking in PGRs solutions had greater influence than the concentration. Differences in percent germination and percent emergence were also observed as affected by PGRs. Uniconazole treatments suppressed hypocotyl length and seedling height very significantly. Seeds soaked in PGRs solutions germinated in petri dishes, but tended not to emerge well in plug trays. Key words: Daminozide (B-9), emergence, ethephon (florel), germination,Lycopersicum esculentum, uniconazole (sumagic).
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Claims 6
Claim · model-written summary
Tomato cultivars differed in germination and seedling growth response.
- Taxon
- tomato
Solanum lycopersicumt0 - Outcome
- Differences among cultivars in response were observed in germination and seedling growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences among cultivars in response were observed in germination and seedling growth”
t0“tomato plug seedlings”
Claim · model-written summary
Uniconazole reduced germination in petri dishes and seedling emergence in plug trays.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- uniconazole treatmentse0
- Outcome
- germination in petri dishes and seedling emergence in plug trayse0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination in petri dishes and seedling emergence in plug trays declined, suppression of hypocotyl length and seedling height was evident in uniconazole treatments in both cultivars”
t0“tomato plug seedlings”
Claim · model-written summary
Uniconazole suppressed hypocotyl length and seedling height in both tomato cultivars.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- uniconazole treatmentse0
- Outcome
- hypocotyl length and seedling heighte0
- Direction
- suppressione0
- Qualifier
- both cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suppression of hypocotyl length and seedling height was evident in uniconazole treatments in both cultivars”
t0“tomato plug seedlings”
Claim · model-written summary
Seed soaking duration influenced response more than PGR concentration.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- duration of seed soaking in PGRs solutionse0
- Outcome
- influencee0
- Direction
- greatere0
- Comparator
- concentratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“duration of seed soaking in PGRs solutions had greater influence than the concentration”
t0“tomato plug seedlings”
Claim · model-written summary
PGR treatments affected percent germination and emergence.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- PGRse0
- Outcome
- percent germination and percent emergencee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in percent germination and percent emergence were also observed as affected by PGRs”
t0“tomato plug seedlings”
Claim · model-written summary
Seeds soaked in PGR solutions germinated in dishes but tended to emerge poorly in plug trays.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- PGRs solutionse0
- Outcome
- tended not to emerge well in plug trayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds soaked in PGRs solutions germinated in petri dishes, but tended not to emerge well in plug trays”
t0“tomato plug seedlings”
The same questions in other papers
uniconazole · growth · Solanum lycopersicum (tomato)Results differ
4 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 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.