Paper · 2009 · Planta Daninha

Weed control via intercropping with gliricidia: I. cotton crop

P.S.L. Silva; J.C.V. Silva; L.P. Carvalho; et al.

6
claims
9
verbatim quotes
13
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

The majority of cotton grown commercially in the world has white lint, but recently, there has been a growing interest in colored lint cotton in several countries, including Brazil. The use of naturally-colored fiber reduces chemical pollution. The objective of this paper was to evaluate cotton cultivar fiber yield in response to weed control via intercropping with gliricídia. Cultivars BRS-Verde (greenish fibers), BRS-Rubi (reddish brown fibers), BRS-Safira (brown fibers), and BRS-187 8H (white fibers) were submitted to the following treatments: no hoeing, two hoeings (at 20 and 40 days after transplanting), and cotton intercropped with gliricídia. In the intercropped treatment, gliricídia was planted between rows of cotton plants, using one seedling pit-1, in pits spaced 50.0 cm apart. Twelve weed species predominated in the experiment, many of them belonging to the Poaceae family. Weeds occurred at different frequencies and in a non-uniform manner in the experimental area. Cultivars did not influence weed dry matter. Intercropping with gliricídia reduced weed dry matter but did not prevent reductions in cotton fiber and seed cotton yield, which were higher in hoed plots. Cultivar BRS Safira had the highest fiber yield, but no differences were observed between cultivars regarding to seed cotton yield.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 6

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cotton cultivars did not influence weed dry matter.

Treatment
Cultivarse0
Interactor
weede0weed
Outcome
weed dry mattere0
Direction
did not influencee0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Cultivars did not influence weed dry matter”

✓ located verbatim in the source · abstract, characters 991–1034 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping cotton with gliricidia reduced weed dry matter.

Treatment
Intercropping with gliricídiae0
Interactor
weede0weed
Outcome
weed dry mattere0
Direction
reducede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping with gliricídia reduced weed dry matter”

✓ located verbatim in the source · abstract, characters 1036–1089 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping with gliricidia did not prevent reductions in cotton fiber and seed cotton yield, which were higher in hoed plots.

Treatment
Intercropping with gliricídiae0
Outcome
cotton fiber and seed cotton yielde0
Direction
reductionse0
Comparator
hoed plotse0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Intercropping with gliricídia reduced weed dry matter but did not prevent reductions in cotton fiber and seed cotton yield, which were higher in hoed plots”

✓ located verbatim in the source · abstract, characters 1036–1191 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cultivar BRS Safira had the highest cotton fiber yield.

Material
BRS Safirae0
Outcome
fiber yielde0
Direction
higheste0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Cultivar BRS Safira had the highest fiber yield”

✓ located verbatim in the source · abstract, characters 1193–1240 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 51–57 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

No differences were observed between cotton cultivars in seed cotton yield.

Outcome
seed cotton yielde0
Direction
no differencese0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“no differences were observed between cultivars regarding to seed cotton yield”

✓ located verbatim in the source · abstract, characters 1246–1323 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Twelve weed species predominated in the cotton experiment, many belonging to the Poaceae family.

Taxon
weed speciese0
Outcome
Twelve weed species predominatede0

Verbatim

e0

“Twelve weed species predominated in the experiment, many of them belonging to the Poaceae family”

✓ located verbatim in the source · abstract, characters 799–895 · show in text ↑

intercropping · quality: grain · Gossypium hirsutum (cotton)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

intercropping · weed · Gossypium hirsutum (cotton)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 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.