Paper · 2022 · Revista Caatinga

LETTUCE AND RADISH GROWN IN SINGLE CROP AND INTERCROPPING SYSTEMS UNDER DIFFERENT IRRIGATION WATER DEPTHS IN A PROTECTED ENVIRONMENT

CLÁUDIA SALIM LOZANO MENEZES; ROBERTO REZENDE; DANIELE DE SOUZA TERASSI; et al.

5
claims
5
verbatim quotes
2
citations
2
research areas
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Open access · cc-by

Abstract

ABSTRACT Vegetables intercropping of results in a better use of natural resources, water, light, and nutrients, when properly managed. The objective of this work was to evaluate the performance of lettuce and radish in single crop and intercropping systems under different irrigation water depths. The experiment was conducted in a protected environment at the State University of Maringá, in Maringá, Paraná, Brazil. A randomized block experimental design was used in a 4×2 factorial arrangement, with four replications. The first factor consisted of four irrigation water depths (60%, 80%, 100%, and 120% ETc), and the second factor consisted of two crop systems (single crop and intercrop). A drip irrigation system was used, consisting of constant water table lysimeters. The variables evaluated were: shoot fresh weight, root dry weight, and leaf area for the lettuce crop; total fresh weight, root fresh weight, and root diameter for the radish crop; and yield, water use efficiency, and land use efficiency index for both crops. Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased. Total fresh weight, root fresh weight, root diameter, and yield of the radish crop were higher in the intercropping system. The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.

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

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Lettuce shoot fresh weight, leaf area and yield increased with irrigation depth.

Taxon
lettuceLactuca sativae0
Treatment
irrigation water depthe0
Outcome
Shoot fresh weight, leaf area, and yielde0
Direction
increasede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased.”

✓ located verbatim in the source · abstract, characters 1036–1214 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Radish total and root fresh weight and yield increased with irrigation depth.

Treatment
irrigation water depthe0
Outcome
total fresh weight, root fresh weight, and yielde0
Direction
increasede0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Shoot fresh weight, leaf area, and yield of lettuce, and total fresh weight, root fresh weight, and yield of radish increased as the irrigation water depth applied was increased.”

✓ located verbatim in the source · abstract, characters 1036–1214 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Radish total fresh weight, root fresh weight, diameter and yield were higher in intercrops.

Treatment
intercropping systeme0
Outcome
Total fresh weight, root fresh weight, root diameter, and yielde0
Direction
highere0

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total fresh weight, root fresh weight, root diameter, and yield of the radish crop were higher in the intercropping system.”

✓ located verbatim in the source · abstract, characters 1215–1338 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Water use efficiency of both crops was higher in single crops.

Taxon
both cropse0
Treatment
single crope0
Outcome
water use efficiencye0
Direction
highere0
Comparator
intercropping systeme0

Verbatim

e0

“The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.”

✓ located verbatim in the source · abstract, characters 1339–1482 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Land use efficiency was higher in intercropping.

Taxon
both cropse0
Treatment
intercropping systeme0
Outcome
land use efficiency indexe0
Direction
highere0
Comparator
single crope0

Verbatim

e0

“The water use efficiency of both crops was higher in the single crop, and the land use efficiency index was higher in the intercropping system.”

✓ located verbatim in the source · abstract, characters 1339–1482 · show in text ↑

irrigation · yield · Raphanus sativus (radish)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

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

  1. no effect
  2. negative
  3. positive

4 papers more in this group

See all 8 papers →

irrigation · yield · Lactuca sativa (garden lettuce)Positive and negative results

57 papers: 32 positive, 25 negative or no effect

31 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

53 papers more in this group

See all 57 papers →

intercropping · yield · Raphanus sativus (radish)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 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.