Abstract
Abstract Aluminum tolerant oat (Avena sativa L.) cultivars are needed for use in rotation with potatoes which require a low soil pH (<5.4) to control the potato scab disease. They would also be valuable where lime is not readily available or prohibitively expensive, or where oats are grown on soils underlain by strongly acid subsoils. However, to date, oat cultivars and germplasm collections have not been systematically evaluated for this trait. Our objective was to determine the range of Al tolerance available among oat cultivars and advanced breeding lines entered in regional experimental nurseries. Forty‐eight cultivars were grown for 28 days in greenhouse pots of an unlimed, Al toxic, Tatum subsoil at pH 4.3 and in limed Tatum soil at pH 5.7 (3 g kg‐1 CaCO3). Oat cultivars differed significantly in tolerance to the acid soil. Relative top yields (pH 4.3/pH 5.7%) ranged from 34.2 to 13.1% and relative root yields from 50 to 16.9%. Cultivars showing highest tolerance included Coker 83–23, Glen, Victory, ND 78406, Pierce and Otana. Cultivars showing significantly less tolerance included Fla 501, Fla 502, Carolee, NC 81378 and Cayuse. Acid soil tolerant and sensitive cultivars did not differ in. Ca and Mg concentrations in their tops when grown on unlimed soil at pH 4.3; however, sensitive cultivars tended to accummulate higher concentrations of P, Al and Fe and lower concentrations of K and Mn. The acid soil tolerant oat cultivars identified show promise for direct use in acid soil situations and for use as breeding materials in combining Al tolerance with other desirable traits in oats.
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Claims 9
Claim · model-written summary
Oat cultivars differed significantly in acid-soil tolerance.
- Taxon
- Oat
Avena sativae0 - Outcome
- tolerance to the acid soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oat cultivars differed significantly in tolerance to the acid soil”
Claim · model-written summary
Relative top yields ranged from 34.2 to 13.1%.
- Taxon
- oatAvena sativat0
- Outcome
- Relative top yieldse0
- Value
- 34.2 to 13.1%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Relative top yields (pH 4.3/pH 5.7%) ranged from 34.2 to 13.1%”
t0“oat cultivars”
Claim · model-written summary
Relative root yields ranged from 50 to 16.9%.
- Taxon
- oatAvena sativat0
- Outcome
- relative root yieldse0
- Value
- 50 to 16.9%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“relative root yields from 50 to 16.9%”
t0“oat cultivars”
Claim · model-written summary
Coker 83–23, Glen, Victory, ND 78406, Pierce, and Otana showed the highest tolerance.
- Taxon
- oatAvena sativat0
- Material
- Coker 83–23, Glen, Victory, ND 78406, Pierce and Otanae0
- Outcome
- highest tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars showing highest tolerance included Coker 83–23, Glen, Victory, ND 78406, Pierce and Otana”
t0“oat cultivars”
Claim · model-written summary
Fla 501, Fla 502, Carolee, NC 81378, and Cayuse showed significantly less tolerance.
- Taxon
- oatAvena sativat0
- Material
- Fla 501, Fla 502, Carolee, NC 81378 and Cayusee0
- Outcome
- tolerancee0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cultivars showing significantly less tolerance included Fla 501, Fla 502, Carolee, NC 81378 and Cayuse”
t0“oat cultivars”
Claim · model-written summary
Tolerant and sensitive cultivars did not differ in top calcium and magnesium concentration at pH 4.3.
- Taxon
- oatAvena sativat0
- Outcome
- Ca and Mg concentrations in their topse0
- Direction
- did not differe0
- Qualifier
- unlimed soil at pH 4.3e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Acid soil tolerant and sensitive cultivars did not differ in. Ca and Mg concentrations in their tops when grown on unlimed soil at pH 4.3”
t0“oat cultivars”
Claim · model-written summary
Sensitive cultivars tended to accumulate more phosphorus, aluminum, and iron.
- Taxon
- oatAvena sativat0
- Material
- sensitive cultivarse0
- Outcome
- concentrations of P, Al and Fee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sensitive cultivars tended to accummulate higher concentrations of P, Al and Fe”
t0“oat cultivars”
Claim · model-written summary
Sensitive cultivars tended to accumulate less potassium and manganese.
- Taxon
- oatAvena sativat0
- Material
- sensitive cultivarse1
- Outcome
- concentrations of K and Mne0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower concentrations of K and Mn”
e1“sensitive cultivars tended to accummulate higher concentrations of P, Al and Fe and lower concentrations of K and Mn”
t0“oat cultivars”
Claim · model-written summary
The identified tolerant cultivars show promise for direct use in acid soils and as breeding material.
- Taxon
- oatAvena sativae0
- Outcome
- direct use in acid soil situations and for use as breeding materialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The acid soil tolerant oat cultivars identified show promise for direct use in acid soil situations and for use as breeding materials in combining Al tolerance with other desirable traits in oats”