Abstract
Abstract Leaf symptoms that resembled Mn deficiency were observed on certain oat ( Avena sativa L.) cultivars grown on a De Voignes series, fine‐silty, mixed, nonacid, frigid, Histic Humaquepts soil where Mn deficiency had not been previously reported. Results of preliminary field studies confirmed that Mn was deficient for optimum oat growth and suggested that Zn was marginally deficient. In addition, a Mn‐efficient oat cultivar (‘Park’) and a Mn‐efficient oat cultivar (‘Cayuse’) were identified. The objective of this field study was to measure the yield, protein, and test weight responses of Park and Cayuse to applications of Mn and Zn made over a 3‐year period. Foliar applications of 1.8 and 3.6 kg/ha Mn to Park and Cayuse, respectively, increased grain yield an average of 588 and 1,097 kg/ha, respectively. One application of Mn at tillering increased yield as much as Mn applications made at both tillering and boot stages of oat development. Grain protein of Park and Cayuse was increased 2.65 and 0.6% by applications of 9.0 and 3.6 kg/ha Mn respectively in 1971. Neither cultivar showed increased protein from Mn application in subsequent experiments. Test weight was not influenced by Mn application. Zinc did not significantly alter yield, protein, or test weight. However, Zn tended to increase test weight in dry years and tended to increase yield in wet years. Combinations of foliar applied MCPA (sodium salt of 2‐methyl‐4‐chlorophenoxyacetic acid) and Mn, or foliar applied Diuron (3‐(3,4 dichlorophenyl)‐1,1‐dimethylurea) and Mn gave yield increases comparable to Mn alone. Combinations of Mn and Zn were not better than Mn alone.
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Claims 13
Claim · model-written summary
Park yield rose 588 kg/ha with 1.8 kg/ha Mn.
- Taxon
- oat
Avena sativae1 - Material
- Parke0
- Treatment
- 1.8e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 588e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of 1.8 and 3.6 kg/ha Mn to Park and Cayuse, respectively, increased grain yield an average of 588 and 1,097 kg/ha, respectively”
e1“oat”
Claim · model-written summary
Cayuse yield rose 1,097 kg/ha with 3.6 kg/ha Mn.
- Taxon
- oatAvena sativae1
- Material
- Cayusee0
- Treatment
- 3.6 kg/ha Mne0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 1,097 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of 1.8 and 3.6 kg/ha Mn to Park and Cayuse, respectively, increased grain yield an average of 588 and 1,097 kg/ha, respectively”
e1“oat”
Claim · model-written summary
One tillering Mn application increased yield as much as two applications.
- Taxon
- oatAvena sativae1
- Treatment
- One application of Mn at tilleringe0
- Outcome
- yielde0
- Direction
- increasede0
- Comparator
- Mn applications made at both tillering and boot stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One application of Mn at tillering increased yield as much as Mn applications made at both tillering and boot stages of oat development”
e1“oat”
Claim · model-written summary
Park grain protein rose 2.65% with 9.0 kg/ha Mn in 1971.
- Taxon
- oatAvena sativae1
- Material
- Parke0
- Treatment
- 9.0e0
- Outcome
- Grain proteine0
- Direction
- increasede0
- Value
- 2.65e0
- Qualifier
- 1971e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain protein of Park and Cayuse was increased 2.65 and 0.6% by applications of 9.0 and 3.6 kg/ha Mn respectively in 1971”
e1“oat”
Claim · model-written summary
Cayuse grain protein rose 0.6% with 3.6 kg/ha Mn in 1971.
- Taxon
- oatAvena sativae1
- Material
- Cayusee0
- Treatment
- 3.6 kg/ha Mne0
- Outcome
- Grain proteine0
- Direction
- increasede0
- Value
- 0.6%e0
- Qualifier
- 1971e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain protein of Park and Cayuse was increased 2.65 and 0.6% by applications of 9.0 and 3.6 kg/ha Mn respectively in 1971”
e1“oat”
Claim · model-written summary
Neither cultivar had increased protein from Mn in later experiments.
- Taxon
- oatAvena sativae1
- Treatment
- Mn applicatione0
- Outcome
- proteine0
- Direction
- Neithere0
- Qualifier
- subsequent experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Neither cultivar showed increased protein from Mn application in subsequent experiments”
e1“oat”
Claim · model-written summary
Mn did not influence oat test weight.
- Taxon
- oatAvena sativae1
- Treatment
- Mn applicatione0
- Outcome
- Test weighte0
- Direction
- not influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Test weight was not influenced by Mn application”
e1“oat”
Claim · model-written summary
Zinc did not significantly alter yield, protein, or test weight.
- Taxon
- oatAvena sativae1
- Treatment
- Zince0
- Outcome
- yield, protein, or test weighte0
- Direction
- did not significantly altere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc did not significantly alter yield, protein, or test weight”
e1“oat”
Claim · model-written summary
Zinc tended to increase test weight in dry years.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn tended to increase test weight in dry years”
e1“oat”
Claim · model-written summary
Zinc tended to increase yield in wet years.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn tended to increase test weight in dry years and tended to increase yield in wet years”
e1“oat”
Claim · model-written summary
MCPA plus Mn produced yield increases comparable with Mn alone.
- Taxon
- oatAvena sativae1
- Treatment
- foliar applied MCPA (sodium salt of 2‐methyl‐4‐chlorophenoxyacetic acid) and Mne0
- Outcome
- yielde0
- Direction
- increasese0
- Comparator
- Mn alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combinations of foliar applied MCPA (sodium salt of 2‐methyl‐4‐chlorophenoxyacetic acid) and Mn, or foliar applied Diuron (3‐(3,4 dichlorophenyl)‐1,1‐dimethylurea) and Mn gave yield increases comparable to Mn alone”
e1“oat”
Claim · model-written summary
Diuron plus Mn produced yield increases comparable with Mn alone.
- Taxon
- oatAvena sativae1
- Treatment
- foliar applied Diuron (3‐(3,4 dichlorophenyl)‐1,1‐dimethylurea) and Mne0
- Outcome
- yielde0
- Direction
- increasese0
- Comparator
- Mn alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combinations of foliar applied MCPA (sodium salt of 2‐methyl‐4‐chlorophenoxyacetic acid) and Mn, or foliar applied Diuron (3‐(3,4 dichlorophenyl)‐1,1‐dimethylurea) and Mn gave yield increases comparable to Mn alone”
e1“oat”
Claim · model-written summary
Mn and Zn combined were no better than Mn alone.
- Taxon
- oatAvena sativae1
- Treatment
- Combinations of Mn and Zne0
- Outcome
- not bettere0
- Direction
- not bettere0
- Comparator
- Mn alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combinations of Mn and Zn were not better than Mn alone”
e1“oat”
The same questions in other papers
(4-chloro-2-methylphenoxy)acetic acid · yield · Avena sativa (oats)Results differ
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zinc atom · quality: grain · Avena sativa (oats)Results agree
1 paper in the same direction as this paper
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See all 37 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.