Paper · 1972 · Canadian Journal of Plant Science

AN EVALUATION OF MARROWSTEM KALE

R. S. FULKERSON; W. E. TOSSELL

10
claims
18
verbatim quotes
11
citations
2
research areas
—
Not open access

Abstract

Agronomic studies on marrowstem kale (Brassica oleracea L.), consisting of seven seeding and five harvest dates in one trial, two seeding methods and nine seeding rates in another, and five silages in another, were conducted for up to 3 years. Data were collected on dry matter yield and several yield and quality components. Delaying the date of seeding reduced yields in the autumn but the converse held for delaying the date of autumn harvest. Similar results were obtained with dry matter content and plant height. Medium to high seeding rates in broadcast stands produced the highest yields for early pasture; light seeding rates in rows yielded the highest for late pasture. Leaves constituted 55% of the pasture herbage in the early harvest and 25% in the late harvest. Height, stem diameter, and plant weights were higher in the row compared with the broadcast method and at the lighter seeding rates. The in vitro digestible dry matter and crude protein content of kale was superior to the other silage crops and kale appeared promising in a kale–corn combination.

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Claims 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Later seeding reduced autumn yield.

Treatment
Delaying the date of seedinge0
Outcome
yields in the autumne0
Direction
reducede0

Not reportedComparator

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Delaying the date of seeding reduced yields in the autumn”

✓ located verbatim in the source · abstract, characters 326–383 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Later autumn harvest had the converse effect on yield to later seeding.

Treatment
delaying the date of autumn harveste0
Outcome
yields in the autumne0
Direction
conversee0
Comparator
Delaying the date of seedinge0

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Delaying the date of seeding reduced yields in the autumn but the converse held for delaying the date of autumn harvest”

✓ located verbatim in the source · abstract, characters 326–445 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Dry matter content and plant height showed similar timing responses.

Outcome
dry matter content and plant heighte0

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Similar results were obtained with dry matter content and plant height”

✓ located verbatim in the source · abstract, characters 447–517 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Medium to high broadcast seeding rates yielded the most early pasture.

Treatment
Medium to high seeding rates in broadcast standse0
Outcome
yields for early pasturee0
Direction
higheste0

Not reportedComparator

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Medium to high seeding rates in broadcast stands produced the highest yields for early pasture”

✓ located verbatim in the source · abstract, characters 519–613 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Light row seeding rates yielded the most late pasture.

Treatment
light seeding rates in rowse0
Outcome
highest for late pasturee0
Direction
higheste0

Not reportedComparator

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“light seeding rates in rows yielded the highest for late pasture”

✓ located verbatim in the source · abstract, characters 615–679 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaves constituted 55% of early pasture herbage.

Organ / stage
Leavese0
Outcome
pasture herbagee0
Value
55%e0
Qualifier
early harveste0

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Leaves constituted 55% of the pasture herbage in the early harvest”

✓ located verbatim in the source · abstract, characters 681–747 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaves constituted 25% of pasture herbage in the late harvest.

Organ / stage
Leavese0
Outcome
pasture herbagee0
Value
25%e0
Qualifier
late harveste0

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Leaves constituted 55% of the pasture herbage in the early harvest and 25% in the late harvest”

✓ located verbatim in the source · abstract, characters 681–775 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Row sowing and lighter rates increased height, stem diameter, and plant weight compared with broadcasting.

Treatment
the rowe0
Outcome
Height, stem diameter, and plant weightse0
Direction
highere0
Qualifier
lighter seeding ratese0
Comparator
the broadcast methode0

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

Brassica oleracea var. medullosa
Brassica oleracea var. medullosa · TaxonMPF · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Height, stem diameter, and plant weights were higher in the row compared with the broadcast method and at the lighter seeding rates”

✓ located verbatim in the source · abstract, characters 777–908 · show in text ↑
t0

“MARROWSTEM KALE”

✓ located verbatim in the source · title, characters 17–32 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kale silage had superior digestible dry matter and crude protein to other silage crops.

Outcome
in vitro digestible dry matter and crude protein contente0
Direction
superiore0
Comparator
the other silage cropse0

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

Brassica oleracea var. viridis
Brassica oleracea var. viridis · TaxonAnn Perry · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The in vitro digestible dry matter and crude protein content of kale was superior to the other silage crops”

✓ located verbatim in the source · abstract, characters 910–1017 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Kale appeared promising for a kale–corn combination.

Outcome
kale–corn combinatione0

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

Brassica oleracea var. viridis
Brassica oleracea var. viridis · TaxonAnn Perry · Public domain · Wikimedia Commons ↗

Verbatim

e0

“kale appeared promising in a kale–corn combination”

✓ located verbatim in the source · abstract, characters 1022–1072 · show in text ↑

in vitro · yield · Brassica oleracea (wild cabbage)Positive and negative results

13 papers: 11 positive, 2 negative or no effect

10 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

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transplanting · yield · Brassica oleracea (wild cabbage)Positive and negative results

50 papers: 40 positive, 10 negative or no effect

39 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

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density · yield · Brassica oleracea (wild cabbage)Positive and negative results

60 papers: 50 positive, 10 negative or no effect

49 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

56 papers more in this group

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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.