Abstract
Orchardgrass, represented by ‘Boone,’ ‘Aberystwyth S‐143,’ and a Portuguese ecotype, was observed through the tenth‐leaf stage in a growth chamber experiment. Plants were started from seed and grown in boxes of soil. Temperatures of 29/21 C (85 F day/72 F night) or 21/13 C (70/55 F) had similar effects on leaf appearance on the main shoot. Leaves appeared more rapidly in the 16,140 than the 10,760‐lux light environment. Boone produced leaves at a faster rate than did S‐143 or Portuguese. Leaf area was influenced by light, temperature, and variety, and interactions of lights ✕ temperatures and varieties ✕ temperatures were observed. Increased leaf area represented mainly increases in length rather than in width of leaf blades. Leaves senesced more rapidly in the 16,140‐ than 10,760‐lux light, 27 and 31 days, respectively. Leaf senescence was not affected by temperature or variety. Boone reached the tenth‐leaf stage sooner, had greater leaf area and was higher yielding than S‐143 or Portuguese. Plants grown in the 21/13 C environment produced more aerial dry matter and had a larger leaf surface than did plants under the 29/31 C regime.
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Claims 9
Claim · model-written summary
The two temperature regimes had similar effects on main shoot leaf appearance.
- Taxon
- Orchardgrass
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Dactylis glomeratae1 - Treatment
- 29/21 C (85 F day/72 F night)e0
- Outcome
- leaf appearance on the main shoote0
- Direction
- similare0
- Comparator
- 21/13 C (70/55 F)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Temperatures of 29/21 C (85 F day/72 F night) or 21/13 C (70/55 F) had similar effects on leaf appearance on the main shoot.”
e1“Orchardgrass”
Claim · model-written summary
Leaves appeared more rapidly at higher light.
- Taxon
- OrchardgrassDactylis glomeratae1
- Treatment
- 16,140e0
- Outcome
- Leaves appearede0
- Direction
- more rapidlye0
- Comparator
- 10,760‐lux light environmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves appeared more rapidly in the 16,140 than the 10,760‐lux light environment.”
e1“Orchardgrass”
Claim · model-written summary
Boone produced leaves faster than S-143 or Portuguese.
- Taxon
- OrchardgrassDactylis glomeratae1
- Material
- Boonee0
- Outcome
- leavese0
- Direction
- fastere0
- Comparator
- S‐143 or Portuguesee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boone produced leaves at a faster rate than did S‐143 or Portuguese.”
e1“Orchardgrass”
Claim · model-written summary
Light, temperature and variety, with light by temperature and variety by temperature interactions, influenced leaf area.
- Taxon
- OrchardgrassDactylis glomeratae1
- Treatment
- light, temperaturee0
- Outcome
- Leaf areae0
- Qualifier
- interactions of lights ✕ temperatures and varieties ✕ temperaturese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf area was influenced by light, temperature, and variety, and interactions of lights ✕ temperatures and varieties ✕ temperatures were observed.”
e1“Orchardgrass”
Claim · model-written summary
Increased leaf area mainly reflected longer rather than wider blades.
- Taxon
- OrchardgrassDactylis glomeratae1
- Outcome
- length rather than in width of leaf bladese0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increased leaf area represented mainly increases in length rather than in width of leaf blades.”
e1“Orchardgrass”
Claim · model-written summary
Leaves senesced sooner at 16,140 than 10,760 lux: 27 versus 31 days.
- Taxon
- OrchardgrassDactylis glomeratae1
- Treatment
- 16,140‐e0
- Outcome
- Leaves senescede0
- Direction
- more rapidlye0
- Value
- 27 and 31 dayse0
- Comparator
- 10,760‐lux lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves senesced more rapidly in the 16,140‐ than 10,760‐lux light, 27 and 31 days, respectively.”
e1“Orchardgrass”
Claim · model-written summary
Temperature and variety did not affect leaf senescence.
- Taxon
- OrchardgrassDactylis glomeratae1
- Treatment
- temperaturee0
- Outcome
- Leaf senescencee0
- Direction
- not affectede0
- Qualifier
- varietye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf senescence was not affected by temperature or variety.”
e1“Orchardgrass”
Claim · model-written summary
Boone reached the tenth leaf stage sooner and had more leaf area and yield than S-143 or Portuguese.
- Taxon
- OrchardgrassDactylis glomeratae1
- Material
- Boonee0
- Outcome
- tenth‐leaf stage sooner, had greater leaf area and was higher yieldinge0
- Direction
- greatere0
- Comparator
- S‐143 or Portuguesee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Boone reached the tenth‐leaf stage sooner, had greater leaf area and was higher yielding than S‐143 or Portuguese.”
e1“Orchardgrass”
Claim · model-written summary
The 21/13 C regime produced more aerial dry matter and larger leaf surface than the 29/31 C regime.
- Taxon
- OrchardgrassDactylis glomeratae1
- Treatment
- 21/13 C environmente0
- Outcome
- aerial dry matter and had a larger leaf surfacee0
- Direction
- moree0
- Comparator
- 29/31 C regimee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants grown in the 21/13 C environment produced more aerial dry matter and had a larger leaf surface than did plants under the 29/31 C regime.”
e1“Orchardgrass”
The same questions in other papers
climate site · growth · Dactylis glomerata (cocksfoot)Positive and negative results
1 in the opposite direction
- no effect
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.