Abstract
ABSTRACT In Northeast Brazil, the cultivation of colored fiber cotton has stood out as one of the agricultural activities of expressive importance because its fiber has various applications in the industry and it is a labor-demanding crop. In this context, this study aimed to evaluate the growth, water consumption, water use efficiency and production of the colored fiber cotton cv. ‘BRS Rubi’, as a function of saline water irrigation and nitrogen (N) doses. The experiment was conducted in lysimeters, under greenhouse conditions, in eutrophic Regolithic Neosol, with a sandy loam texture, in Campina Grande-PB, Brazil. The plants were irrigated using water with electrical conductivities (ECw) of 5.1, 6.1, 7.1, 8.1 and 9.1 dS m-1 and fertilized with N doses (ND) of 65, 100, 135, 170 and 205 mg N kg-1 soil, in a completely randomized block design, with three replicates. Irrigation using water with an ECw above 5.1 dS m-1, hampered growth, water consumption and water use efficiency of ‘BRS Rubi’ cotton. Among the organs, the cotton root system was less affected by the salt stress in comparison to the shoots. N fertilization did not mitigate the deleterious effect of salt stress on cotton growth, water consumption, water use efficiency and production. The interaction between water salinity and N fertilization had positive effects on total weight of seeds and lint, and the highest values were obtained in plants irrigated with water of ECw 7.6 and 7.5 dS m-1 and ND of 65 mg N kg-1 of soil.
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Claims 6
Claim · model-written summary
Irrigation above ECw 5.1 dS m-1 hampered BRS Rubi cotton growth, water consumption and water use efficiency.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- ‘BRS Rubi’e0
- Treatment
- Irrigation using water with an ECw above 5.1 dS m-1e0
- Outcome
- growth, water consumption and water use efficiencye0
- Direction
- hamperede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation using water with an ECw above 5.1 dS m-1, hampered growth, water consumption and water use efficiency of ‘BRS Rubi’ cotton”
Claim · model-written summary
Cotton roots were less affected by salt stress than shoots.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- root systeme0
- Outcome
- affected by the salt stresse0
- Direction
- less affectede0
- Comparator
- the shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the cotton root system was less affected by the salt stress in comparison to the shoots”
Claim · model-written summary
Nitrogen fertilization did not mitigate salt-stress effects on cotton growth, water use and production.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- N fertilizatione0
- Outcome
- cotton growth, water consumption, water use efficiency and productione0
- Direction
- did not mitigatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilization did not mitigate the deleterious effect of salt stress on cotton growth, water consumption, water use efficiency and production”
Claim · model-written summary
The salinity by nitrogen interaction positively affected total seed weight.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- water salinity and N fertilizatione0
- Outcome
- total weight of seedse0
- Direction
- positive effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between water salinity and N fertilization had positive effects on total weight of seeds and lint”
t0“COTTON”
Claim · model-written summary
The salinity by nitrogen interaction positively affected lint weight.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- water salinity and N fertilizatione0
- Outcome
- linte0
- Direction
- positive effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The interaction between water salinity and N fertilization had positive effects on total weight of seeds and lint”
t0“COTTON”
Claim · model-written summary
Highest seed weight occurred at ECw 7.6 dS m-1 and nitrogen 65 mg N kg-1 soil.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- ECw 7.6 and 7.5 dS m-1 and ND of 65 mg N kg-1 of soile0
- Outcome
- highest valuese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest values were obtained in plants irrigated with water of ECw 7.6 and 7.5 dS m-1 and ND of 65 mg N kg-1 of soil”
t0“COTTON”
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