Abstract
Abstract Germination responses of achenes of lettuce ( Lactuca sativa L, cv. Arctic King) to treatment with kinetin, gibbe‐rellins and abscisic acid were examined over a range of temperatures: in both light and dark. Kinetin (0.1–10 mg/l) strongly promoted germination at temperatures above 27±C in continuous light or after short periods of illumination during the early stages of imbibition. It also relieved the inhibitory affects of abscisic acid in these conditions. In total darkness however kinetin treatment resulted in only a minor promotive effect. Treatment with gibberellic acid (A 3 ) or a mixture of gibberellins A 4 and A 7 were much less effective in promoting germination at higher temperatures of lettuce achenes exposed to light but were strongly promotive in the dark.
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Claims 7
Claim · model-written summary
Kinetin promoted lettuce germination above 27±C with continuous or early light.
- Taxon
- Lettuce
Lactuca sativat0 - Treatment
- Kinetin (0.1–10 mg/l)e0
- Outcome
- germinatione0
- Direction
- strongly promotede0
- Qualifier
- temperatures above 27±C in continuous light or after short periods of illumination during the early stages of imbibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kinetin (0.1–10 mg/l) strongly promoted germination at temperatures above 27±C in continuous light or after short periods of illumination during the early stages of imbibition”
t0“Lettuce (Lactuca sativa)”
Claim · model-written summary
Kinetin relieved abscisic acid inhibition under those conditions.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Kinetin (0.1–10 mg/l)e1
- Outcome
- inhibitory affects of abscisic acide0
- Direction
- relievede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It also relieved the inhibitory affects of abscisic acid in these conditions”
e1“Kinetin (0.1–10 mg/l)”
t0“Lettuce (Lactuca sativa)”
Claim · model-written summary
Kinetin had only a minor germination promotion in darkness.
- Taxon
- LettuceLactuca sativat0
- Treatment
- kinetin treatmente0
- Outcome
- germinatione1
- Direction
- minor promotive effecte0
- Setting
- total darknesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In total darkness however kinetin treatment resulted in only a minor promotive effect”
e1“strongly promoted germination”
t0“Lettuce (Lactuca sativa)”
Claim · model-written summary
Gibberellic acid was less effective at promoting germination at higher temperature with light.
- Taxon
- lettuceLactuca sativae0
- Treatment
- gibberellic acid (A 3 )e0
- Outcome
- germinatione0
- Direction
- less effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with gibberellic acid (A 3 ) or a mixture of gibberellins A 4 and A 7 were much less effective in promoting germination at higher temperatures of lettuce achenes exposed to light”
Claim · model-written summary
The gibberellins A4 and A7 mixture was less effective at promoting germination at higher temperature with light.
- Taxon
- lettuceLactuca sativae0
- Treatment
- a mixture of gibberellins A 4 and A 7e0
- Outcome
- germinatione0
- Direction
- less effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a mixture of gibberellins A 4 and A 7 were much less effective in promoting germination at higher temperatures of lettuce achenes exposed to light”
Claim · model-written summary
Gibberellic acid strongly promoted germination in darkness.
- Taxon
- lettuceLactuca sativae0
- Treatment
- gibberellic acid (A 3 )e0
- Outcome
- germinatione0
- Direction
- strongly promotivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with gibberellic acid (A 3 ) or a mixture of gibberellins A 4 and A 7 were much less effective in promoting germination at higher temperatures of lettuce achenes exposed to light but were strongly promotive in the dark”
Claim · model-written summary
The gibberellins A4 and A7 mixture strongly promoted germination in darkness.
- Taxon
- lettuceLactuca sativae0
- Treatment
- a mixture of gibberellins A 4 and A 7e0
- Outcome
- germinatione0
- Direction
- strongly promotivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with gibberellic acid (A 3 ) or a mixture of gibberellins A 4 and A 7 were much less effective in promoting germination at higher temperatures of lettuce achenes exposed to light but were strongly promotive in the dark”
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See all 10 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.