Abstract
he prevailing climate of the semiarid region in the northeastern region of Brazil along with inadequate irrigation management, have caused the formation of halomorphic soils, which have hampered agricultural production and environmental sustainability of this region. Therefore, this study aimed to evaluate the emergence and initial growth of the cotton cultivar ‘BRS Topázio’ cultivated in soil with different levels of exchangeable sodium percentage (ESP) and concentrations of organic matter (OM) in a greenhouse from April to June 2014. The experiment was set in a randomized block design in a 5 × 4 factorial scheme, with three replicates, and the treatments consisted of five ESP levels (13.6, 22.4, 30.1, 39.0, and 48.0) and four OM concentrations (0, 5, 10, and 15% based on soil volume). Soils with an ESP ranging from 13.6 to 48.0 did not interfere with the emergence and number of leaves of cotton at 10 days after seeding (DAS). At 44 DAS, in the period preceding the flowering stage, ESPs ranging from 27 to 30 promoted greater plant height, stem diameter, and shoot fresh and dry matter. Increasing OM increased the emergence percentage and emergence speed index and, at 44 DAS, increased plant height, stem diameter, and shoot fresh and dry matter. Increasing OM mitigated the effect of the exchangeable sodium up to an ESP of 30 on the number of leaves, plant height, stem diameter, and leaf area at 10 DAS, and up to mean ESPs of 28.5 and 34.0 for the number of leaves and leaf area, respectively, at 44 DAS.
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Claims 7
Claim · model-written summary
Soil ESP from 13.6 to 48.0 did not alter emergence or leaf number at 10 DAS.
- Taxon
- cotton
Gossypium hirsutume0 - Organ / stage
- 10 days after seedinge0
- Treatment
- ESP ranging from 13.6 to 48.0e0
- Outcome
- emergence and number of leavese0
- Direction
- did not interferee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soils with an ESP ranging from 13.6 to 48.0 did not interfere with the emergence and number of leaves of cotton at 10 days after seeding (DAS).”
t0“colored cotton ‘BRS Topázio’”
Claim · model-written summary
At 44 DAS, ESP 27 to 30 gave greater height, stem diameter, and shoot fresh and dry matter.
- Taxon
- cottonGossypium hirsutumt0
- Organ / stage
- 44 DASe0
- Treatment
- ESPs ranging from 27 to 30e0
- Outcome
- plant height, stem diameter, and shoot fresh and dry mattere0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 44 DAS, in the period preceding the flowering stage, ESPs ranging from 27 to 30 promoted greater plant height, stem diameter, and shoot fresh and dry matter.”
t0“colored cotton ‘BRS Topázio’”
Claim · model-written summary
Increasing organic matter increased emergence percentage and speed index.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Increasing OMe0
- Outcome
- emergence percentage and emergence speed indexe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing OM increased the emergence percentage and emergence speed index”
t0“colored cotton ‘BRS Topázio’”
Claim · model-written summary
Increasing organic matter increased height, stem diameter, and shoot mass at 44 DAS.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- organic matter additiont0
- Outcome
- plant height, stem diameter, and shoot fresh and dry mattere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 44 DAS, increased plant height, stem diameter, and shoot fresh and dry matter.”
t0“Saline-sodic soil and organic matter addition in the cultivation of the colored cotton ‘BRS Topázio’”
Claim · model-written summary
More organic matter mitigated sodium effects on leaf number, height, stem diameter and leaf area at 10 DAS up to ESP 30.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Increasing OMe0
- Outcome
- number of leaves, plant height, stem diameter, and leaf areae0
- Direction
- mitigatede0
- Value
- ESP of 30e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing OM mitigated the effect of the exchangeable sodium up to an ESP of 30 on the number of leaves, plant height, stem diameter, and leaf area at 10 DAS”
t0“colored cotton ‘BRS Topázio’”
Claim · model-written summary
At 44 DAS, organic matter mitigated sodium effects on leaf number up to mean ESP 28.5.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- organic matter additiont0
- Outcome
- number of leavese0
- Value
- 28.5e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“up to mean ESPs of 28.5 and 34.0 for the number of leaves and leaf area, respectively, at 44 DAS.”
t0“Saline-sodic soil and organic matter addition in the cultivation of the colored cotton ‘BRS Topázio’”
Claim · model-written summary
At 44 DAS, organic matter mitigated sodium effects on leaf area up to mean ESP 34.0.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- organic matter additiont0
- Outcome
- leaf areae0
- Value
- 34.0e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“up to mean ESPs of 28.5 and 34.0 for the number of leaves and leaf area, respectively, at 44 DAS.”
t0“Saline-sodic soil and organic matter addition in the cultivation of the colored cotton ‘BRS Topázio’”
The same questions in other papers
sodium atom · growth · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →organic · growth · Gossypium hirsutum (cotton)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
5 papers more in this group
See all 9 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.