Abstract
Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario. Highest yields were recorded under continuous warm temperature (26.7 °C day, 15.6 °C night) and the lowest under continuous cold temperature (15.6 °C day, 4.4 °C night). Warm temperature conditions followed by a cold period decreased growth rate, the effect being more severe on alfalfa than on timothy. Growth was slower at first for timothy than for alfalfa, but timothy growth rate eventually exceeded that of alfalfa.Alfalfa root weights showed a strong dependence on temperature and were closely related to herbage yields. Timothy root weights demonstrated a smaller reaction to temperature and little relationship with herbage production. Shoot: root ratios were higher in timothy than in alfalfa but showed no consistent relationship with temperature.Timothy had a higher hydrolyzable-sugar content than alfalfa. Continuous low temperature resulted in the lowest sugar content in both species, but exposure to low temperature following a warm period gave the highest content.
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Claims 15
Claim · model-written summary
Highest yields of alfalfa and timothy seedlings were recorded under continuous warm temperature.
- Taxon
- Alfalfa and timothy
Medicago sativa
Phleum pratensee0 - Treatment
- continuous warm temperature (26.7 °C day, 15.6 °C night)e1
- Outcome
- yieldse1
- Direction
- Higheste1
- Comparator
- continuous cold temperature (15.6 °C day, 4.4 °C night)e1
- Setting
- northern Ontarioe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e1“Highest yields were recorded under continuous warm temperature (26.7 °C day, 15.6 °C night) and the lowest under continuous cold temperature (15.6 °C day, 4.4 °C night)”
Claim · model-written summary
Lowest yields of alfalfa and timothy seedlings were recorded under continuous cold temperature.
- Taxon
- Alfalfa and timothyMedicago sativaPhleum pratensee0
- Treatment
- continuous cold temperature (15.6 °C day, 4.4 °C night)e1
- Outcome
- yieldse1
- Direction
- loweste1
- Comparator
- continuous warm temperature (26.7 °C day, 15.6 °C night)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e1“Highest yields were recorded under continuous warm temperature (26.7 °C day, 15.6 °C night) and the lowest under continuous cold temperature (15.6 °C day, 4.4 °C night)”
Claim · model-written summary
Warm temperature followed by a cold period decreased growth rate of alfalfa and timothy.
- Taxon
- Alfalfa and timothyMedicago sativaPhleum pratensee0
- Treatment
- Warm temperature conditions followed by a cold periode2
- Outcome
- growth ratee2
- Direction
- decreasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e2“Warm temperature conditions followed by a cold period decreased growth rate, the effect being more severe on alfalfa than on timothy”
Claim · model-written summary
The growth-rate decrease from warm then cold temperature was more severe in alfalfa than in timothy.
- Taxon
- alfalfaMedicago sativae2
- Treatment
- Warm temperature conditions followed by a cold periode2
- Outcome
- growth ratee2
- Direction
- more severee2
- Comparator
- timothye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Warm temperature conditions followed by a cold period decreased growth rate, the effect being more severe on alfalfa than on timothy”
Claim · model-written summary
Timothy growth was slower at first than alfalfa growth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Growth was slower at first for timothy than for alfalfa, but timothy growth rate eventually exceeded that of alfalfa”
Claim · model-written summary
Timothy growth rate eventually exceeded that of alfalfa.
- Taxon
- timothyPhleum pratensee3
- Outcome
- growth ratee3
- Direction
- exceedede3
- Qualifier
- eventuallye3
- Comparator
- alfalfae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Growth was slower at first for timothy than for alfalfa, but timothy growth rate eventually exceeded that of alfalfa”
Claim · model-written summary
Alfalfa root weights showed a strong dependence on temperature.
- Taxon
- AlfalfaMedicago sativae4
- Organ / stage
- roote4
- Treatment
- temperaturee4
- Outcome
- root weightse4
- Qualifier
- strong dependencee4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Alfalfa root weights showed a strong dependence on temperature and were closely related to herbage yields”
Claim · model-written summary
Alfalfa root weights were closely related to herbage yields.
- Taxon
- AlfalfaMedicago sativae4
- Organ / stage
- roote4
- Outcome
- root weightse4
- Qualifier
- closely relatede4
- Comparator
- herbage yieldse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Alfalfa root weights showed a strong dependence on temperature and were closely related to herbage yields”
Claim · model-written summary
Timothy root weights showed a smaller reaction to temperature.
- Taxon
- TimothyPhleum pratensee5
- Organ / stage
- roote5
- Treatment
- temperaturee5
- Outcome
- root weightse5
- Direction
- smaller reactione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Timothy root weights demonstrated a smaller reaction to temperature and little relationship with herbage production”
Claim · model-written summary
Timothy root weights had little relationship with herbage production.
- Taxon
- TimothyPhleum pratensee5
- Organ / stage
- roote5
- Outcome
- root weightse5
- Direction
- little relationshipe5
- Comparator
- herbage productione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Timothy root weights demonstrated a smaller reaction to temperature and little relationship with herbage production”
Claim · model-written summary
Shoot:root ratios were higher in timothy than in alfalfa.
- Taxon
- timothyPhleum pratensee6
- Outcome
- Shoot: root ratiose6
- Direction
- highere6
- Comparator
- alfalfae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Shoot: root ratios were higher in timothy than in alfalfa but showed no consistent relationship with temperature”
Claim · model-written summary
Shoot:root ratios showed no consistent relationship with temperature in alfalfa and timothy.
- Taxon
- Alfalfa and timothyMedicago sativaPhleum pratensee0
- Treatment
- temperaturee6
- Outcome
- relationship with temperaturee6
- Direction
- no consistent relationshipe6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e6“but showed no consistent relationship with temperature”
Claim · model-written summary
Timothy had a higher hydrolyzable-sugar content than alfalfa.
- Taxon
- TimothyPhleum pratensee7
- Outcome
- hydrolyzable-sugar contente7
- Direction
- highere7
- Comparator
- alfalfae7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Timothy had a higher hydrolyzable-sugar content than alfalfa”
Claim · model-written summary
Continuous low temperature resulted in the lowest sugar content in alfalfa and timothy.
- Taxon
- Alfalfa and timothyMedicago sativaPhleum pratensee0
- Treatment
- Continuous low temperaturee7
- Outcome
- sugar contente7
- Direction
- loweste7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e7“Continuous low temperature resulted in the lowest sugar content in both species”
Claim · model-written summary
Low temperature following a warm period gave the highest sugar content in alfalfa and timothy.
- Taxon
- Alfalfa and timothyMedicago sativaPhleum pratensee0
- Treatment
- exposure to low temperature following a warm periode7
- Outcome
- contente7
- Direction
- higheste7
- Comparator
- low temperaturee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa and timothy seedlings were exposed to four temperature treatments, simulating conditions in an average growing season in northern Ontario”
e7“but exposure to low temperature following a warm period gave the highest content”
The same questions in other papers
cold · growth · Phleum pratense (timothy)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
cold · growth · Medicago sativa (alfalfa)Positive and negative results
4 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →cold · yield · Medicago sativa (alfalfa)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.