Abstract
An early flowering genetic line of peas (Pisum sativum L.), designated G2, has dominant genes at two different loci, both of which function in short days to greatly extend the reproductive phase and thus to delay apical senescence. Long days (18 hours) promote senescence in this line, but the effect is reversible by reinstatement of short days (9 hours) until 3 to 4 days before the apex senesces. The response to photoperiod was quantitative. Increasing the photoperiod from 14 to 18 hours led to a progressive decrease in the number of nodes formed prior to death of the apex. Induction of senescence was determined by the total number of hours of light and darkness rather than by the length of the dark period. Senescence required flower and fruit development as well as long days.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
In pea line G2, dominant genes at two loci function in short days to greatly extend the reproductive phase and delay apical senescence.
- Taxon
- Pisum sativum L.
Lathyrus oleraceuse0 - Material
- G2e0
- Treatment
- short dayse0
- Gene
- dominant genes at two different locie0
- Outcome
- reproductive phasee0
- Direction
- extende0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An early flowering genetic line of peas (Pisum sativum L.), designated G2, has dominant genes at two different loci, both of which function in short days to greatly extend the reproductive phase and thus to delay apical senescence”
Claim · model-written summary
Long days (18 hours) promote senescence in pea line G2.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- Long days (18 hours)e0
- Outcome
- senescencee0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Long days (18 hours) promote senescence in this line”
e1“Pisum sativum L.”
Claim · model-written summary
The senescence-promoting effect of long days is reversible by reinstating short days (9 hours) until 3 to 4 days before the apex senesces.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- reinstatement of short days (9 hours)e0
- Outcome
- the effecte0
- Direction
- reversiblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the effect is reversible by reinstatement of short days (9 hours) until 3 to 4 days before the apex senesces”
e1“Pisum sativum L.”
Claim · model-written summary
Increasing the photoperiod from 14 to 18 hours led to a progressive decrease in the number of nodes formed before death of the apex.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- Increasing the photoperiod from 14 to 18 hourse0
- Outcome
- number of nodes formed prior to death of the apexe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the photoperiod from 14 to 18 hours led to a progressive decrease in the number of nodes formed prior to death of the apex”
e1“Pisum sativum L.”
Claim · model-written summary
Induction of senescence was determined by the total number of hours of light and darkness rather than by the length of the dark period.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Treatment
- total number of hours of light and darknesse0
- Outcome
- Induction of senescencee0
- Qualifier
- rather than by the length of the dark periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Induction of senescence was determined by the total number of hours of light and darkness rather than by the length of the dark period”
e1“Pisum sativum L.”
Claim · model-written summary
Senescence required flower and fruit development as well as long days.
- Taxon
- Pisum sativum L.Lathyrus oleraceuse1
- Organ / stage
- flower and fruit developmente0
- Treatment
- long dayse0
- Outcome
- Senescencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Senescence required flower and fruit development as well as long days”
e1“Pisum sativum L.”
The same questions in other papers
light · quality: postharvest · Lathyrus oleraceus (pea)Positive and negative results
2 in the opposite direction
- positive
- positive
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.