Paper · 2009 · DOAJ (DOAJ: Directory of Open Access Journals)

RESPOSTA DE DUAS CULTIVARES DE ARROZ DE TERRAS ALTAS EM CONVIVÊNCIA COM Brachiaria brizantha

Abdias Alves De Oliveira; Adriano Jakelaitis; João Paulo De Souza Quaresma; et al.

4
claims
11
verbatim quotes
2
citations
2
research areas
✓
Open access · cc-by-sa

Abstract

The objective of this work was to evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species. It was used randomized blocks in experimental design arranged in factorial scheme 2x2+4, with four replicates. The first factor was constituted by the upland rice cultivars (BRS Primavera e BRSMG Curinga) and the second factor by two sowing times of B. brizantha forage (simultaneous sowing between rice and forage and sowing of the forage in the flowering of the rice). The additional treatments consisted of the sole crops upland rice cultivars and B. brizantha forage for each sowing time. In rice was evaluated the height of the plants, bedding, difficulty of the harvest, the number of panicles per area, grain per panicles, percentage of full and empty grains, 100-grain mass and grain yield. In the B. brizantha forage was evaluated the height of the tillers, the total dry mass and the rate of cultural growth. It was observed that the B. brizantha forage interfered in the productivity components of both upland rice cultivars and difficult significantly the harvest of the rice. The upland rice cultivars showed small competitive capacity with the B. brizantha forage when the establishment of the forage occurred simultaneously to the rice. However, to the measure that the sowing was occurred with the established rice already, the B. brizantha forage had his growth suppressed.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. 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 4

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Brachiaria brizantha forage interfered with the productivity components of both upland rice cultivars.

Taxon
upland riceOryza sativae0
Material
BRS Primavera e BRSMG Curingae5
Treatment
Brachiaria brizantha forage intercrope0
Interactor
B. brizanthaUrochloa brizanthae2weed
Outcome
productivity componentse2
Direction
interferede2
Comparator
sole cropse1

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa brizantha
Urochloa brizantha · Interactorhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species”

✓ located verbatim in the source · abstract, characters 34–187 · show in text ↑
e1

“The additional treatments consisted of the sole crops upland rice cultivars and B. brizantha forage for each sowing time”

✓ located verbatim in the source · abstract, characters 560–680 · show in text ↑
e2

“It was observed that the B. brizantha forage interfered in the productivity components of both upland rice cultivars and difficult significantly the harvest of the rice”

✓ located verbatim in the source · abstract, characters 1008–1176 · show in text ↑
e5

“the upland rice cultivars (BRS Primavera e BRSMG Curinga)”

✓ located verbatim in the source · abstract, characters 336–393 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Brachiaria brizantha forage made the rice harvest significantly more difficult.

Taxon
upland riceOryza sativae0
Treatment
Brachiaria brizantha forage intercrope0
Interactor
B. brizanthaUrochloa brizanthae2weed
Outcome
harvest of the ricee2
Direction
difficulte2
Comparator
sole cropse1

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa brizantha
Urochloa brizantha · Interactorhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species”

✓ located verbatim in the source · abstract, characters 34–187 · show in text ↑
e1

“The additional treatments consisted of the sole crops upland rice cultivars and B. brizantha forage for each sowing time”

✓ located verbatim in the source · abstract, characters 560–680 · show in text ↑
e2

“It was observed that the B. brizantha forage interfered in the productivity components of both upland rice cultivars and difficult significantly the harvest of the rice”

✓ located verbatim in the source · abstract, characters 1008–1176 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Rice cultivars showed small competitive capacity against B. brizantha forage when the forage was sown simultaneously with the rice.

Taxon
upland riceOryza sativae0
Treatment
the establishment of the forage occurred simultaneously to the ricee3
Interactor
B. brizantha forageUrochloa brizanthae3weed
Outcome
competitive capacitye3
Direction
smalle3

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa brizantha
Urochloa brizantha · Interactorhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species”

✓ located verbatim in the source · abstract, characters 34–187 · show in text ↑
e3

“The upland rice cultivars showed small competitive capacity with the B. brizantha forage when the establishment of the forage occurred simultaneously to the rice”

✓ located verbatim in the source · abstract, characters 1178–1339 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Brachiaria brizantha forage growth was suppressed when it was sown after the rice was established.

Taxon
upland riceOryza sativae0
Treatment
the sowing was occurred with the established rice alreadye4
Interactor
B. brizantha forageUrochloa brizanthae4weed
Outcome
growthe4
Direction
suppressede4

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa brizantha
Urochloa brizantha · Interactorhttp://www.hear.org/starr/imageusepolicy.htm This file is licensed under the Creative Commons Attribution 3.0 Unported license. Attribution: Forest & Kim Starr · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“evaluate to the sowing time of the Brachiaria brizantha forage intercrop with two upland rice cultivars on the agronomics characteristics of both species”

✓ located verbatim in the source · abstract, characters 34–187 · show in text ↑
e4

“However, to the measure that the sowing was occurred with the established rice already, the B. brizantha forage had his growth suppressed”

✓ located verbatim in the source · abstract, characters 1341–1478 · show in text ↑

Urochloa brizantha · yield · Oryza sativa (rice)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

intercropping · yield · Oryza sativa (rice)Results differ

95 papers: 77 positive, 18 negative or no effect

17 papers in the same direction as this paper · 77 in the opposite direction

  1. positive
  2. positive
  3. positive

91 papers more in this group

See all 95 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.