Abstract
Abstract The relationship between potassium concentration in the plant at various growth stages and the grain yield of L. angustifolius cv. Unicrop was derived from a rates and times of application of KCl field trial. Critical levels were defined as those associated with 90% of maximum yield. Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering. The effect of plant part sampled was examined at early flowering. Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant. Grain K concentrations were very insensitive to changes in supply, and are of little use as a diagnostic tool. The ratio of K concentration in pods to that in seeds increased from 0.5 under extreme deficiency to 1.3 under conditions of adequate supply, and should be a useful diagnostic tool at maturity.
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Claims 14
Claim · model-written summary
Critical % K in the whole tops of lupin was 3.1 at the 4–6 leaves stage.
- Taxon
- Lupinus angustifolius
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Lupinus angustifoliust1 - Material
- cv. Unicropt1
- Organ / stage
- 4–6 leaves stagee1
- Outcome
- Critical % K levels in the whole topse1
- Value
- 3.1e1
- Qualifier
- 90% of maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Critical levels were defined as those associated with 90% of maximum yield”
e1“Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical % K in the whole tops of lupin was 2.9 at the 8–10 leaves stage.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- 8–10 leavese1
- Outcome
- Critical % K levels in the whole topse1
- Value
- 2.9e1
- Qualifier
- 90% of maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Critical levels were defined as those associated with 90% of maximum yield”
e1“Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical % K in the whole tops of lupin was 1.5 at first flowering.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- first floweringe1
- Outcome
- Critical % K levels in the whole topse1
- Value
- 1.5e1
- Qualifier
- 90% of maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Critical levels were defined as those associated with 90% of maximum yield”
e1“Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical % K in the whole tops of lupin was 1.2 with flowers on higher order laterals.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- flowers on higher order lateralse1
- Outcome
- Critical % K levels in the whole topse1
- Value
- 1.2e1
- Qualifier
- 90% of maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Critical levels were defined as those associated with 90% of maximum yield”
e1“Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical % K in the whole tops of lupin was 0.9 post flowering.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- post floweringe1
- Outcome
- Critical % K levels in the whole topse1
- Value
- 0.9e1
- Qualifier
- 90% of maximum yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Critical levels were defined as those associated with 90% of maximum yield”
e1“Critical % K levels in the whole tops were 3.1 at the 4–6 leaves stage, 2.9 at 8–10 leaves, 1.5 at first flowering, 1.2 with flowers on higher order laterals and 0.9 post flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical level in petioles 1–5 at early flowering was 1.2% K.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- petioles 1–5e2
- Outcome
- Critical levelse2
- Value
- 1.2% Ke2
- Qualifier
- at early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant”
e3“The effect of plant part sampled was examined at early flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical level in petioles 6–10 at early flowering was 0.6% K.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- petioles 6–10e2
- Outcome
- Critical levelse2
- Value
- 0.6% Ke2
- Qualifier
- at early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant”
e3“The effect of plant part sampled was examined at early flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical level in leaves 1–5 at early flowering was 1.3% K.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- leaves 1–5e2
- Outcome
- Critical levelse2
- Value
- 1.3% Ke2
- Qualifier
- at early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant”
e3“The effect of plant part sampled was examined at early flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical level in leaves 6–10 at early flowering was 0.5% K.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- leaves 6–10e2
- Outcome
- Critical levelse2
- Value
- 0.5% Ke2
- Qualifier
- at early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant”
e3“The effect of plant part sampled was examined at early flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Critical level in the growing point at early flowering was 2.1% K.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Material
- cv. Unicropt1
- Organ / stage
- growing point of the plante2
- Outcome
- Critical levelse2
- Value
- 2.1% Ke2
- Qualifier
- at early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Critical levels at that stage were 1.2% K for petioles 1–5, 0.6% K for petioles 6–10, 1.3% K for leaves 1–5, 0.5% K for leaves 6–10 and 2.1% K in the growing point of the plant”
e3“The effect of plant part sampled was examined at early flowering”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Grain K concentrations were very insensitive to changes in supply.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Treatment
- changes in supplye4
- Outcome
- Grain K concentrationse4
- Direction
- very insensitivee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Grain K concentrations were very insensitive to changes in supply, and are of little use as a diagnostic tool”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
Grain K concentration is of little use as a diagnostic tool for lupin.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Outcome
- little use as a diagnostic toole4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Grain K concentrations were very insensitive to changes in supply, and are of little use as a diagnostic tool”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
The pod-to-seed K concentration ratio increased from 0.5 under extreme deficiency to 1.3 under adequate supply.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Treatment
- extreme deficiencye5
- Outcome
- The ratio of K concentration in pods to that in seedse5
- Direction
- increasede5
- Value
- 0.5e5
- Qualifier
- to 1.3 under conditions of adequate supplye5
- Comparator
- adequate supplye5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“The ratio of K concentration in pods to that in seeds increased from 0.5 under extreme deficiency to 1.3 under conditions of adequate supply”
t1“Lupinus angustifolius cv. Unicrop”
Claim · model-written summary
The pod-to-seed K ratio should be a useful diagnostic tool at maturity.
- Taxon
- Lupinus angustifoliusLupinus angustifoliust1
- Outcome
- a useful diagnostic tool at maturitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“should be a useful diagnostic tool at maturity”
t1“Lupinus angustifolius cv. Unicrop”