Abstract
Seedlings of alfalfa (Medicago saliva L.) cv. Ranger and cv. Hairy Peruvian were grown under conditions of long day and high temperatures or short day and low temperatures. Under long days and high temperatures, both varieties developed an elongated shoot and exhibited relatively low cold-resistance, as measured by the extent of leakage of cellular substances, after being exposed to sub-zero temperature. Under short days and low temperatures, Ranger seedlings developed a rosette growth and exhibited an improved response to sub-zero temperature. In contrast, Hairy Peruvian seedlings developed an elongated shoot and did not acquire cold-resistance. Hairy Peruvian grown in a nutrient solution containing abscisic acid, however, developed a rosette and acquired an improved response to sub-zero temperature, like cv. Ranger under short days and low temperatures. Addition of gibberellic acid to Ranger seedlings grown under these conditions nullified the environmental effects, since they developed an elongated shoot and did not acquire cold-resistance. It is concluded that abscisic acid and gibberellic acid are involved in the interrelationship between morphogenesis and cold-resistance in the seedlings of the two alfalfa cultivars.
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 11
Claim · model-written summary
Both alfalfa cultivars developed elongated shoots under long days and high temperatures.
- Taxon
- alfalfa
Medicago sativae1 - Treatment
- long days and high temperaturese0
- Outcome
- elongated shoote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under long days and high temperatures, both varieties developed an elongated shoot”
e1“Seedlings of alfalfa (Medicago saliva L.) cv. Ranger and cv. Hairy Peruvian”
Claim · model-written summary
Both cultivars had relatively low cold resistance under long days and high temperatures.
- Taxon
- alfalfaMedicago sativae1
- Treatment
- long days and high temperaturese0
- Outcome
- cold-resistancee0
- Direction
- lowe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under long days and high temperatures, both varieties developed an elongated shoot and exhibited relatively low cold-resistance”
e1“Seedlings of alfalfa (Medicago saliva L.) cv. Ranger and cv. Hairy Peruvian”
Claim · model-written summary
Under short days and low temperatures, Ranger seedlings formed rosettes.
- Taxon
- alfalfaMedicago sativae1
- Material
- Rangere0
- Treatment
- short days and low temperaturese0
- Outcome
- rosette growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under short days and low temperatures, Ranger seedlings developed a rosette growth”
e1“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Under short days and low temperatures, Ranger improved its response to freezing.
- Taxon
- alfalfaMedicago sativae1
- Material
- Rangere0
- Treatment
- short days and low temperaturese0
- Outcome
- response to sub-zero temperaturee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under short days and low temperatures, Ranger seedlings developed a rosette growth and exhibited an improved response to sub-zero temperature.”
e1“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Under short days and low temperatures, Hairy Peruvian seedlings stayed elongated.
- Taxon
- alfalfaMedicago sativae2
- Material
- Hairy Peruviane0
- Treatment
- short days and low temperaturese1
- Outcome
- elongated shoote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hairy Peruvian seedlings developed an elongated shoot and did not acquire cold-resistance.”
e1“Under short days and low temperatures, Ranger seedlings”
e2“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Under short days and low temperatures, Hairy Peruvian did not acquire cold resistance.
- Taxon
- alfalfaMedicago sativae2
- Material
- Hairy Peruviane0
- Treatment
- short days and low temperaturese1
- Outcome
- cold-resistancee0
- Direction
- did not acquiree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hairy Peruvian seedlings developed an elongated shoot and did not acquire cold-resistance.”
e1“Under short days and low temperatures, Ranger seedlings”
e2“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Abscisic acid treatment caused Hairy Peruvian to form a rosette.
- Taxon
- alfalfaMedicago sativae1
- Material
- Hairy Peruviane0
- Treatment
- nutrient solution containing abscisic acide0
- Outcome
- rosettee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hairy Peruvian grown in a nutrient solution containing abscisic acid, however, developed a rosette”
e1“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Abscisic acid improved Hairy Peruvian freezing response.
- Taxon
- alfalfaMedicago sativae1
- Material
- Hairy Peruviane0
- Treatment
- nutrient solution containing abscisic acide0
- Outcome
- response to sub-zero temperaturee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hairy Peruvian grown in a nutrient solution containing abscisic acid, however, developed a rosette and acquired an improved response to sub-zero temperature”
e1“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Gibberellic acid made Ranger seedlings develop elongated shoots under short days and low temperatures.
- Taxon
- alfalfaMedicago sativae2
- Material
- Rangere0
- Treatment
- Addition of gibberellic acide0
- Outcome
- elongated shoote0
- Qualifier
- short days and low temperaturese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of gibberellic acid to Ranger seedlings grown under these conditions nullified the environmental effects, since they developed an elongated shoot”
e1“Under short days and low temperatures, Ranger seedlings”
e2“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
Gibberellic acid prevented Ranger seedlings from acquiring cold resistance.
- Taxon
- alfalfaMedicago sativae1
- Material
- Rangere0
- Treatment
- Addition of gibberellic acide0
- Outcome
- cold-resistancee0
- Direction
- did not acquiree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of gibberellic acid to Ranger seedlings grown under these conditions nullified the environmental effects, since they developed an elongated shoot and did not acquire cold-resistance.”
e1“Seedlings of alfalfa (Medicago saliva L.)”
Claim · model-written summary
The authors conclude that abscisic and gibberellic acid connect morphogenesis and cold resistance.
- Taxon
- alfalfaMedicago sativae0
- Compound
- abscisic acid and gibberellic acide0
- Outcome
- interrelationship between morphogenesis and cold-resistancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“abscisic acid and gibberellic acid are involved in the interrelationship between morphogenesis and cold-resistance in the seedlings of the two alfalfa cultivars.”
The same questions in other papers
fertilization · soil: physics · Medicago sativa (alfalfa)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →cold · tolerance: abiotic · Medicago sativa (alfalfa)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →cold · growth · Medicago sativa (alfalfa)Positive and negative results
7 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- no effect
9 papers more in this group
See all 13 papers →light · growth · Medicago sativa (alfalfa)Positive and negative results
17 papers in the same direction as this paper · 10 in the opposite direction
- negative
- negative
- negative
24 papers more in this group
See all 28 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.