Abstract
Lodging may cause serious grain losses when conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility in humid regions. The use of semi dwarf cultivars could alleviate this problem, but because none have been available, little is known about their potential value. Our objective was to compare conventional height ‘Ogle’ to semi dwarf ‘Pennlo’ oats when grown at different management levels. In 1982 and 1983, the two cultivars were grown near University Park, PA, in a factorial experiment with row spacings of 13 and 18 cm, seeding rates of 67, I01, and 134 kg ha ‐1 , and N rates of 67, I01, and 134 kg ha ‐1 . Overall, Ogle yielded 18% more grain and 29% more straw than Pennlo in 1982 and 13% more grain and 33% more straw in 1983. The semidwarf was 27% shorter than Ogle and did not lodge. Ogle lodged severely in some treatments, but this occurred too late to limit yield. Grain yield increases in response to reduced row spacing were similar for Ogle and Pennlo (6.2 and 9.6% for the 2 yr). With the exception of Pennlo in 1982, grain yield of both cultivars was increased by using a seeding rate of I01 kg ha ‐1 . A high seeding rate increased the test weight of both cultlvars and the lodging of Ogle. Increasing N rate from 67 to 134 kg ha ‐1 increased grain yield of both cultivars. Considering all management levels over the 2 yr, there were no major response differences between the conventional height and the semi dwarf cultivars.
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Claims 13
Claim · model-written summary
Ogle yielded 18% more grain than Pennlo in 1982.
- Taxon
- oat
Avena sativae0 - Material
- Oglee1
- Outcome
- graine1
- Direction
- moree1
- Value
- 18%e1
- Qualifier
- in 1982e1
- Comparator
- Pennloe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e1“Overall, Ogle yielded 18% more grain and 29% more straw than Pennlo in 1982 and 13% more grain and 33% more straw in 1983”
Claim · model-written summary
Ogle produced 29% more straw than Pennlo in 1982.
- Taxon
- oatAvena sativae0
- Material
- Oglee1
- Outcome
- strawe1
- Direction
- moree1
- Value
- 29%e1
- Qualifier
- in 1982e1
- Comparator
- Pennloe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e1“Overall, Ogle yielded 18% more grain and 29% more straw than Pennlo in 1982 and 13% more grain and 33% more straw in 1983”
Claim · model-written summary
Ogle yielded 13% more grain than Pennlo in 1983.
- Taxon
- oatAvena sativae0
- Material
- Oglee1
- Outcome
- graine1
- Direction
- moree1
- Value
- 13%e1
- Qualifier
- in 1983e1
- Comparator
- Pennloe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e1“Overall, Ogle yielded 18% more grain and 29% more straw than Pennlo in 1982 and 13% more grain and 33% more straw in 1983”
Claim · model-written summary
Ogle produced 33% more straw than Pennlo in 1983.
- Taxon
- oatAvena sativae0
- Material
- Oglee1
- Outcome
- strawe1
- Direction
- moree1
- Value
- 33%e1
- Qualifier
- in 1983e1
- Comparator
- Pennloe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e1“Overall, Ogle yielded 18% more grain and 29% more straw than Pennlo in 1982 and 13% more grain and 33% more straw in 1983”
Claim · model-written summary
The semidwarf oat was 27% shorter than Ogle.
- Taxon
- oatAvena sativae0
- Material
- semidwarfe2
- Outcome
- shortere2
- Direction
- shortere2
- Value
- 27%e2
- Comparator
- Oglee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e2“The semidwarf was 27% shorter than Ogle and did not lodge”
Claim · model-written summary
The semidwarf oat did not lodge.
- Taxon
- oatAvena sativae0
- Material
- semidwarfe2
- Outcome
- lodgee2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e2“The semidwarf was 27% shorter than Ogle and did not lodge”
Claim · model-written summary
Ogle lodged severely in some treatments, too late to limit yield.
- Taxon
- oatAvena sativae0
- Material
- Oglee3
- Outcome
- lodged severelye3
- Qualifier
- occurred too late to limit yielde3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e3“Ogle lodged severely in some treatments, but this occurred too late to limit yield”
Claim · model-written summary
Grain yield increased with reduced row spacing similarly for Ogle and Pennlo (6.2 and 9.6%).
- Taxon
- oatAvena sativae0
- Material
- Ogle and Pennloe4
- Treatment
- reduced row spacinge4
- Outcome
- Grain yielde4
- Direction
- increasese4
- Value
- 6.2 and 9.6%e4
- Qualifier
- similar for Ogle and Pennloe4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e4“Grain yield increases in response to reduced row spacing were similar for Ogle and Pennlo (6.2 and 9.6% for the 2 yr)”
Claim · model-written summary
A seeding rate of I01 kg ha -1 increased grain yield of both cultivars, except Pennlo in 1982.
- Taxon
- oatAvena sativae0
- Material
- both cultivarse5
- Treatment
- seeding rate of I01 kg ha ‐1e5
- Outcome
- grain yielde5
- Direction
- increasede5
- Qualifier
- With the exception of Pennlo in 1982e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e5“With the exception of Pennlo in 1982, grain yield of both cultivars was increased by using a seeding rate of I01 kg ha ‐1”
Claim · model-written summary
A high seeding rate increased test weight of both cultivars.
- Taxon
- oatAvena sativae0
- Material
- both cultlvarse6
- Treatment
- A high seeding ratee6
- Outcome
- test weighte6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e6“A high seeding rate increased the test weight of both cultlvars and the lodging of Ogle”
Claim · model-written summary
A high seeding rate increased lodging of Ogle.
- Taxon
- oatAvena sativae0
- Material
- Oglee6
- Treatment
- A high seeding ratee6
- Outcome
- lodging of Oglee6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e6“A high seeding rate increased the test weight of both cultlvars and the lodging of Ogle”
Claim · model-written summary
Increasing N rate from 67 to 134 kg ha -1 increased grain yield of both cultivars.
- Taxon
- oatAvena sativae0
- Material
- both cultivarse7
- Treatment
- Increasing N rate from 67 to 134 kg ha ‐1e7
- Outcome
- grain yielde7
- Direction
- increasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e7“Increasing N rate from 67 to 134 kg ha ‐1 increased grain yield of both cultivars”
Claim · model-written summary
Over all management levels and two years, semidwarf and conventional height oat showed no major difference in response.
- Taxon
- oatAvena sativae0
- Material
- semi dwarf cultivarse7
- Outcome
- response differencese7
- Comparator
- conventional heighte7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conventional height oat ( Avena sativa L.) plants are grown at high levels of soil fertility”
e7“Considering all management levels over the 2 yr, there were no major response differences between the conventional height and the semi dwarf cultivars”
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