Paper · 1999 · HortScience

506 Plant Density and Shoot Pruning Management on Yield of a Summer Greenhouse Sweet Pepper Crop

Elio Jovicich; Daniel J. Cantliffe; George J. Hochmuth

10
claims
20
verbatim quotes
10
citations
1
research areas
✓
Open access

Abstract

In greenhouse crops, fruit yield and quality can be increased by managing shoot pruning and plant density. The effect of plant population density (2, 3, and 4 plants/m 2 as function of in-row plant spacings of 66.5, 44.3, and 33.3 cm, respectively), and shoot pruning (one, two, and four main stems) was studied for effects on fruit yield, quality and plant growth of greenhouse-grown sweet pepper ( Capsicum annuum L. cv. Robusta) during Summer 1998 in Gainesville, Fla. Red fruit were harvested 84 and 118 days after transplanting (14 Apr.). Additional fruit set was inhibited due to the high temperatures. Marketable yield (number and weight) per square meter increased linearly with plant density and was greater on plants with four stems than in those with two or one stem. Extra-large fruit yield per square meter was not affected by plant density, but was higher in four-stem plants. Total marketable yield and extra-large fruit yields per plant were greatest in the four-stem plants at two plants per square meter. The stem length and the number of nodes per stem increased linearly with the decrease in plant spacing. Stem length and number of nodes per stem were greater in single-stem than in four-stem plants. Number and dry weight of leaves, stem diameter, and total plant dry weight were higher in four- and two-stem plants than in single-stem plants. Results indicated that four plants per square meter pruned to four stems increased marketable and extra-large fruit yield in a short harvest period of a summer greenhouse sweet pepper crop in north central Florida.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Marketable yield per square meter increased linearly with density.

Taxon
sweet pepperCapsicum annuumt0
Treatment
plant densitye0
Outcome
Marketable yield (number and weight) per square metere0
Direction
increased linearlye0

Not reportedComparator

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Marketable yield (number and weight) per square meter increased linearly with plant density”

✓ located verbatim in the source · abstract, characters 609–700 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Four-stem plants had greater marketable yield than one- or two-stem plants.

Taxon
sweet pepperCapsicum annuumt0
Treatment
four stemse0
Outcome
greatere0
Direction
greatere0
Comparator
two or one steme0

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“was greater on plants with four stems than in those with two or one stem”

✓ located verbatim in the source · abstract, characters 705–777 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Density did not affect extra-large fruit yield per square meter.

Taxon
sweet pepperCapsicum annuumt0
Treatment
plant densitye0
Outcome
Extra-large fruit yield per square metere0
Direction
not affectede0

Not reportedComparator

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Extra-large fruit yield per square meter was not affected by plant density”

✓ located verbatim in the source · abstract, characters 779–853 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Four stems gave higher extra-large fruit yield per square meter.

Taxon
sweet pepperCapsicum annuumt0
Treatment
four-stem plantse0
Outcome
highere0
Direction
highere0

Not reportedComparator

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“but was higher in four-stem plants”

✓ located verbatim in the source · abstract, characters 855–889 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Four-stem plants at two plants per square meter had greatest per-plant marketable and extra-large yield.

Taxon
sweet pepperCapsicum annuumt0
Treatment
four-stem plants at two plants per square metere0
Outcome
Total marketable yield and extra-large fruit yields per plante0
Direction
greateste0

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Total marketable yield and extra-large fruit yields per plant were greatest in the four-stem plants at two plants per square meter”

✓ located verbatim in the source · abstract, characters 891–1021 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Stem length and nodes increased as spacing decreased.

Taxon
sweet pepperCapsicum annuumt0
Treatment
plant spacinge0
Outcome
stem length and the number of nodes per steme0
Direction
increased linearlye0

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The stem length and the number of nodes per stem increased linearly with the decrease in plant spacing”

✓ located verbatim in the source · abstract, characters 1023–1125 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Single-stem plants had greater stem length and node number than four-stem plants.

Taxon
sweet pepperCapsicum annuumt0
Treatment
single-steme0
Outcome
Stem length and number of nodes per steme0
Direction
greatere0
Comparator
four-stem plantse0

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Stem length and number of nodes per stem were greater in single-stem than in four-stem plants”

✓ located verbatim in the source · abstract, characters 1127–1220 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Two- and four-stem plants had more and heavier leaves, wider stems, and more dry mass than single-stem plants.

Taxon
sweet pepperCapsicum annuumt0
Treatment
four- and two-stem plantse0
Outcome
Number and dry weight of leaves, stem diameter, and total plant dry weighte0
Direction
highere0
Comparator
single-stem plantse0

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Number and dry weight of leaves, stem diameter, and total plant dry weight were higher in four- and two-stem plants than in single-stem plants”

✓ located verbatim in the source · abstract, characters 1222–1364 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Four plants per square meter pruned to four stems increased marketable and extra-large fruit yield.

Taxon
sweet pepperCapsicum annuumt0
Treatment
four plants per square meter pruned to four stemse0
Outcome
marketable and extra-large fruit yielde0
Direction
increasede0

Not reportedComparator

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“four plants per square meter pruned to four stems increased marketable and extra-large fruit yield”

✓ located verbatim in the source · abstract, characters 1389–1487 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High temperatures inhibited additional fruit set.

Taxon
sweet pepperCapsicum annuumt0
Treatment
high temperaturese0
Outcome
Additional fruit sete0
Direction
inhibitede0

Not reportedComparator

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

Capsicum annuum
Capsicum annuum · TaxonBilljones94 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Additional fruit set was inhibited due to the high temperatures”

✓ located verbatim in the source · abstract, characters 544–607 · show in text ↑
t0

“sweet pepper”

✓ located after whitespace/quote normalisation · title, characters 79–91 · show in text ↑

density · quality: postharvest · Capsicum annuum (sweet pepper)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

pruning · quality: postharvest · Capsicum annuum (sweet pepper)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

2 papers more in this group

See all 6 papers →

heat · yield · Capsicum annuum (sweet pepper)Positive and negative results

9 papers: 4 positive, 5 negative or no effect

4 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

density · yield · Capsicum annuum (sweet pepper)Positive and negative results

20 papers: 18 positive, 2 negative or no effect

1 paper in the same direction as this paper · 18 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 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.