Abstract
Abstract The atmosphere in which seeds germinate can profoundly affect the level of germination and dormancy. Seeds were germinated in atmospheres containing various concentrations of carbon dioxide and oxygen. At the same time the effect of light on these systems was examined. The germination of partially dormant populations of wild oat seed is inhibited by white light. This response to light is most apparent when the curyopsis is enclosed in the pales. Investigations into the effect of the ambient atmosphere on germination have indicated that, while oxygen is a necessary factor in the germination of tliis species, carbon dioxide also has an effect. A lack of carbon dioxide increases the degree of light inhibition of germination; 3 per cent carbon dioxide (by volume) allows germination in light; 20 per cent carbon dioxide inhibits germination in light and darkness at all tested oxygen concentrations.
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Claims 6
Claim · model-written summary
Germination of partially dormant wild oat seed populations is inhibited by white light.
Not reportedComparator
Verbatim
e0“The germination of partially dormant populations of wild oat seed is inhibited by white light”
Claim · model-written summary
The inhibitory response to light is most apparent when the caryopsis is enclosed in the pales.
- Taxon
- Avena fatua
Avena fatuat0 - Organ / stage
- curyopsis is enclosed in the palese0
- Outcome
- response to light is most apparente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This response to light is most apparent when the curyopsis is enclosed in the pales”
t0“Avena fatua”
Claim · model-written summary
Oxygen is a necessary factor for germination of Avena fatua.
- Taxon
- Avena fatuaAvena fatuat0
- Treatment
- oxygene0
- Outcome
- germinatione0
- Direction
- necessarye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oxygen is a necessary factor in the germination of tliis species”
t0“Avena fatua”
Claim · model-written summary
A lack of carbon dioxide increases the degree of light inhibition of germination in Avena fatua.
- Taxon
- Avena fatuaAvena fatuat0
- Treatment
- lack of carbon dioxidee0
- Outcome
- light inhibition of germinatione0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A lack of carbon dioxide increases the degree of light inhibition of germination”
t0“Avena fatua”
Claim · model-written summary
Three per cent carbon dioxide by volume allows germination of Avena fatua in light.
- Taxon
- Avena fatuaAvena fatuat0
- Treatment
- 3 per cent carbon dioxide (by volume)e0
- Outcome
- germination in lighte0
- Direction
- allowse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“3 per cent carbon dioxide (by volume) allows germination in light”
t0“Avena fatua”
Claim · model-written summary
Twenty per cent carbon dioxide inhibits germination of Avena fatua in light and darkness at all tested oxygen concentrations.
- Taxon
- Avena fatuaAvena fatuat0
- Treatment
- 20 per cent carbon dioxidee0
- Outcome
- germination in light and darknesse0
- Direction
- inhibitse0
- Qualifier
- at all tested oxygen concentrationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“20 per cent carbon dioxide inhibits germination in light and darkness at all tested oxygen concentrations”
t0“Avena fatua”
The same questions in other papers
co2 · disease · Avena fatuaPositive and negative results
1 in the opposite direction
- positive
light · growth · Avena sativa (oats)Positive and negative results
7 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
8 papers more in this group
See all 12 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.