Paper · 1978 · New Zealand Journal of Agricultural Research

Plant density and irrigation studies on lupins

S. J. Herbert

15
claims
30
verbatim quotes
9
citations
2
research areas
✓
Open access

Abstract

Abstract In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2 . Irrigation during flowering and seed‐filling reduced seed yield because of an unidentified root pathogen. A maximum leaf area index of 7 was reached 1 week after flowring, resulting in a high leaf area duration (LAD) during seed‐filling. Mainstem and first‐order pods per unit area accounted for most of the variation in seed yield (r = +0.84*** and +0.77*** respectively). Compensatory branching at lower plant densities did not occur. Irrigation reduced mainstem pod set on disease‐free plants, but the yield loss was compensated for by increased production by branches. Increased vegetative growth of irrigated plants also lowered seed set on the mainstem but improved seed set in third‐ and fourth‐order pods Seed number per pod and seed weight decreased at higher inflorescence orders. Seed number per pod was also reduced at high plant densities, but there was no response of seed weight to plant population. This lack of response may be related to high LAD at all densities.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 15

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed yield of Lupinus angustifolius increased to a maximum of 575 g/m 2 at 130 plants/m 2 across plant densities.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
plant densitiese0
Outcome
seed yielde0
Direction
increasede0
Value
575 g/m 2e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation during flowering and seed-filling reduced seed yield of Lupinus angustifolius.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
Irrigation during flowering and seed‐fillinge1
Interactor
root pathogene1pathogen
Outcome
seed yielde1
Direction
reducede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Irrigation during flowering and seed‐filling reduced seed yield because of an unidentified root pathogen”

✓ located verbatim in the source · abstract, characters 182–286 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Maximum leaf area index of Lupinus angustifolius was 7, reached one week after flowering.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Outcome
leaf area indexe2
Value
7e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e2

“A maximum leaf area index of 7 was reached 1 week after flowring”

✓ located verbatim in the source · abstract, characters 288–352 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf area duration of Lupinus angustifolius was high during seed-filling.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Outcome
leaf area duratione3
Qualifier
during seed-fillinge3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e3

“resulting in a high leaf area duration (LAD) during seed-filling”

✓ located after whitespace/quote normalisation · abstract, characters 354–418 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Mainstem pods per unit area were associated with seed yield (r = +0.84***).

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Organ / stage
Mainsteme4
Outcome
seed yielde4
Value
+0.84***e4

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e4

“Mainstem and first‐order pods per unit area accounted for most of the variation in seed yield (r = +0.84*** and +0.77*** respectively)”

✓ located verbatim in the source · abstract, characters 420–554 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

First-order pods per unit area were associated with seed yield (r = +0.77***).

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Organ / stage
first‐order podse4
Outcome
seed yielde4
Value
+0.77***e4

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e4

“Mainstem and first‐order pods per unit area accounted for most of the variation in seed yield (r = +0.84*** and +0.77*** respectively)”

✓ located verbatim in the source · abstract, characters 420–554 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Compensatory branching did not occur at lower plant densities.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
lower plant densitiese5
Outcome
Compensatory branchinge5
Direction
no_changeinferrede5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e5

“Compensatory branching at lower plant densities did not occur”

✓ located verbatim in the source · abstract, characters 556–617 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation reduced mainstem pod set on disease-free plants of Lupinus angustifolius.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
Irrigatione6
Outcome
mainstem pod sete6
Direction
reducede6
Qualifier
disease-free plantse6

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e6

“Irrigation reduced mainstem pod set on disease-free plants”

✓ located after whitespace/quote normalisation · abstract, characters 619–677 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation increased production by branches, compensating for yield loss.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
Irrigatione6
Outcome
production by branchese7
Direction
increasede7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e6

“Irrigation reduced mainstem pod set on disease-free plants”

✓ located after whitespace/quote normalisation · abstract, characters 619–677 · show in text ↑
e7

“the yield loss was compensated for by increased production by branches”

✓ located verbatim in the source · abstract, characters 683–753 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Increased vegetative growth of irrigated plants lowered seed set on the mainstem.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
Increased vegetative growth of irrigated plantse1
Outcome
seed set on the mainsteme1
Direction
lowerede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Increased vegetative growth of irrigated plants also lowered seed set on the mainstem but improved seed set”

✓ located verbatim in the source · abstract, characters 755–862 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increased vegetative growth of irrigated plants improved seed set in higher-order pods.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
Increased vegetative growth of irrigated plantse1
Outcome
seed sete1
Direction
improvede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Increased vegetative growth of irrigated plants also lowered seed set on the mainstem but improved seed set”

✓ located verbatim in the source · abstract, characters 755–862 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed number per pod decreased at higher inflorescence orders.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
higher inflorescence orderse1
Outcome
Seed number per pode1
Direction
decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Seed number per pod and seed weight decreased at higher inflorescence orders”

✓ located verbatim in the source · abstract, characters 895–971 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed weight decreased at higher inflorescence orders.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
higher inflorescence orderse1
Outcome
seed weighte1
Direction
decreasede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Seed number per pod and seed weight decreased at higher inflorescence orders”

✓ located verbatim in the source · abstract, characters 895–971 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed number per pod was reduced at high plant densities.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
high plant densitiese1
Outcome
Seed number per pode1
Direction
reducede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“Seed number per pod was also reduced at high plant densities”

✓ located verbatim in the source · abstract, characters 973–1033 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Seed weight did not respond to plant population.

Taxon
Lupinus angustifoliusLupinus angustifoliuse0
Treatment
plant populatione1
Outcome
seed weighte1
Direction
no_changeinferrede1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lupinus angustifolius
Lupinus angustifolius · TaxonHans Hillewaert · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In an August (1976) sowing of Unicrop ( Lupinus angustifolius ) at 7 plant densities (10–163 plants/m 2 ) seed yield increased to a maximum of 575 g/m 2 at 130 plants/m 2”

✓ located verbatim in the source · abstract, characters 9–179 · show in text ↑
e1

“there was no response of seed weight to plant population”

✓ located verbatim in the source · abstract, characters 1039–1095 · show in text ↑

irrigation · yield · Lupinus angustifolius (narrow-leaved blue lupine)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. negative
  2. negative
See all 3 papers →

density · yield · Lupinus angustifolius (narrow-leaved blue lupine)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

1 paper in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
See all 3 papers →

stage · yield · Lupinus angustifolius (narrow-leaved blue lupine)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. positive
  3. positive
See all 4 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.