Paper · 2016 · African Journal of Agricultural Research

Productivity and quality of watermelon as function of phosphorus doses and variety

das Chagas Goncalves Francisco; de Fatima Lima Sousa Valdivia; Novo Junior Jose; et al.

7
claims
13
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by

Abstract

Although watermelon is one of the major vegetable-fruit crop, management fertilization still lacks information for increased productivity, quality and profitability, and to lower environmental impact. An experiment was conducted in Mossoró, Brasilian city of Rio Grande do Norte, from August to October 2012, to evaluate the effects of doses of phosphorus (P) (0, 45, 90, 135, 180 and 225 kg ha-1 P2O5) in productivity, quality and profitability of two cultivars of watermelon cultivation (Top Gun and Olympia), in a randomized blocks in a factorial 6 × 2, with four replications. Larger number of commercial fruits (1.70 per plant) and commercial yield (74.39 t ha-1) were obtained with 54.8 and 49.4 kg ha-1 P2O5, respectively. Attributes of quality of watermelon fruit were not influenced by P. Dose between cultivars differences were found, and 'Olympia' had higher fruit mass and skin thickness than the 'Top Gun'. However, the soluble solids content of the 'Top Gun' was 4.9% higher than the Olympia. The maximum economic return was achieved with a dose of 49.37 kg ha-1 of P2O5. Key words: Citrullus lanatus, phosphate fertilizer, production cost.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Commercial fruit number peaked at 1.70 per plant with 54.8 kg ha-1 P2O5.

Taxon
watermelonCitrullus lanatust0
Treatment
54.8e0
Outcome
number of commercial fruitse0
Direction
Largere0
Value
1.70 per plante0

Not reportedComparator

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Larger number of commercial fruits (1.70 per plant) and commercial yield (74.39 t ha-1) were obtained with 54.8 and 49.4 kg ha-1 P2O5, respectively”

✓ located verbatim in the source · abstract, characters 581–728 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Commercial yield peaked at 74.39 t ha-1 with 49.4 kg ha-1 P2O5.

Taxon
watermelonCitrullus lanatust0
Treatment
49.4e0
Outcome
commercial yielde0
Direction
Largere0
Value
74.39 t ha-1e0

Not reportedComparator

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Larger number of commercial fruits (1.70 per plant) and commercial yield (74.39 t ha-1) were obtained with 54.8 and 49.4 kg ha-1 P2O5, respectively”

✓ located verbatim in the source · abstract, characters 581–728 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phosphorus did not influence watermelon fruit quality attributes.

Taxon
watermelonCitrullus lanatuse0
Treatment
Pe0
Outcome
Attributes of quality of watermelon fruite0
Direction
not influencede0

Not reportedComparator

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Attributes of quality of watermelon fruit were not influenced by P”

✓ located verbatim in the source · abstract, characters 730–796 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Olympia had higher fruit mass than Top Gun.

Taxon
watermelonCitrullus lanatust0
Material
Olympiae0
Outcome
fruit masse0
Direction
highere0
Comparator
Top Gune0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“'Olympia' had higher fruit mass and skin thickness than the 'Top Gun'”

✓ located verbatim in the source · abstract, characters 849–918 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Olympia had higher skin thickness than Top Gun.

Taxon
watermelonCitrullus lanatust0
Material
Olympiae0
Outcome
skin thicknesse0
Direction
highere0
Comparator
Top Gune0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“'Olympia' had higher fruit mass and skin thickness than the 'Top Gun'”

✓ located verbatim in the source · abstract, characters 849–918 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Top Gun soluble solids were 4.9% higher than Olympia.

Taxon
watermelonCitrullus lanatust0
Material
Top Gune0
Outcome
soluble solids contente0
Direction
highere0
Value
4.9%e0
Comparator
Olympiae0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the soluble solids content of the 'Top Gun' was 4.9% higher than the Olympia”

✓ located verbatim in the source · abstract, characters 929–1005 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum economic return occurred at 49.37 kg ha-1 P2O5.

Taxon
watermelonCitrullus lanatust0
Outcome
economic returne0
Direction
maximume0
Value
49.37 kg ha-1 of P2O5e0

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

Citrullus lanatus
Citrullus lanatus · TaxonKumon · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum economic return was achieved with a dose of 49.37 kg ha-1 of P2O5”

✓ located verbatim in the source · abstract, characters 1007–1084 · show in text ↑
t0

“watermelon”

✓ located verbatim in the source · title, characters 28–38 · show in text ↑

phosphorus · quality: general · Citrullus lanatus (watermelon)Positive and negative results

5 papers: 4 positive, 1 negative or no effect

4 in the opposite direction

  1. positive
  2. positive
  3. positive

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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.