Abstract
Lettuce is a crop with high commercial and social importance, reaching from the macro to the Brazilian micro producer. The objective of this study was to evaluate the agronomic performance of Elba and Rouge lettuce cultivars in terms of development and production, under different environments, for the edaphoclimatic conditions of Juazeiro, Bahia. The experimental design adopted was completely randomized, in a split plot scheme, with two production environments (shaded environment and full sun) in the plots, and two lettuce cultivars (Crespa, CV. 1 Elba and Roxa, CV. 2 Rouge) in the subplots. The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency. The cultivation system in a protected environment showed better development and high productivity for the two lettuce cultivars, when compared to the system in full sun. Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8
Claim · model-written summary
Protected cultivation improved lettuce better development relative to full sun.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- protected environmente0
- Outcome
- better developmente0
- Direction
- bettere0
- Comparator
- full sune0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The cultivation system in a protected environment showed better development and high productivity for the two lettuce cultivars, when compared to the system in full sun.”
Claim · model-written summary
Protected cultivation improved lettuce high productivity relative to full sun.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- protected environmente0
- Outcome
- high productivitye0
- Direction
- highe0
- Comparator
- full sune0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The cultivation system in a protected environment showed better development and high productivity for the two lettuce cultivars, when compared to the system in full sun.”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for plant height in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- plant heighte1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for plant diameter in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- plant diametere1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for average fresh weight in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- average fresh weighte1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for average dry weight in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- average dry weighte1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for total productivity in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- total productivitye1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
Claim · model-written summary
Cultivar 1 exceeded cultivar 2 for water use efficiency in both systems.
- Taxon
- Lettuce
Lactuca sativat0 - Material
- Cultivar 1e0
- Outcome
- water use efficiencye1
- Direction
- superiore0
- Qualifier
- in both cultivation systemse0
- Comparator
- cultivar 2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Cultivar 1 showed superior performance to cultivar 2, in all variables analyzed, in both cultivation systems.”
e1“The variables analyzed were: plant height, plant diameter, average fresh weight, average dry weight, total productivity and water use efficiency.”
t0“Lettuce Cultivars”
The same questions in other papers
climate site · yield · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 papers →climate site · growth · Lactuca sativa (garden lettuce)Positive and negative results
5 papers in the same direction as this paper · 5 in the opposite direction
- negative
- negative
- negative
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.