Abstract
Freshwater scarcity severely limits sustainable cotton production in arid regions. This study aimed to establish the optimal salinity threshold for staged saline water supplemental irrigation (SWSI) and elucidate its canopy-level mechanisms in optimizing within-boll yield components and fiber quality. A two-year field trial (2023–2024) was conducted in Awati County, Xinjiang, using mulched drip irrigation at five SWSI levels (3.5–9.5 g L−1) and a freshwater control (CK). Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%, boll number per plant by 22.45%, and fibers per seed by 6.01–10.59%, while fiber length and strength rose by 6.98–10.38% and 2.69–6.00%, respectively. When salinity reached 8.0 g L−1, yield declined by 8.5%, and a salinity of 9.5 g L−1 reduced yield by 24.52%. Spatially, mid-fruiting branches (nodes 4–6) remained stable, maintaining high lint mass per seed even under high salinity, whereas upper branches (≥node 7) were most sensitive; at 9.5 g L−1, the boll number (0.36) was 56.6% lower than at 3.5 g L−1 (0.83), and the Q-score decreased by 6.7%. These results demonstrate that SWSI with ≤5.0 g L−1 salinity (optimum 3.5 g L−1) simultaneously enhances lint yield and fiber quality, providing a practical strategy for efficient saline water use in arid cotton regions.
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Claims 11
Claim · model-written summary
At 3.5 g L−1, lint yield increased 31.4% over freshwater control.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- 3.5 g L−1 treatmente0
- Outcome
- lint yielde0
- Direction
- increasede0
- Value
- 31.4%e0
- Comparator
- CKe0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 3.5 g L−1, boll number per plant increased 22.45% over freshwater control.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 3.5 g L−1 treatmente0
- Outcome
- boll number per plante0
- Direction
- increasede0
- Value
- 22.45%e0
- Comparator
- CKe0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%, boll number per plant by 22.45%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 3.5 g L−1, fibers per seed increased 6.01–10.59%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 3.5 g L−1 treatmente0
- Outcome
- fibers per seede0
- Direction
- increasede0
- Value
- 6.01–10.59%e0
- Comparator
- CKe0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%, boll number per plant by 22.45%, and fibers per seed by 6.01–10.59%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 3.5 g L−1, fiber length rose 6.98–10.38% over freshwater control.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 3.5 g L−1 treatmente0
- Outcome
- fiber lengthe0
- Direction
- rosee0
- Value
- 6.98–10.38%e0
- Comparator
- CKe0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%, boll number per plant by 22.45%, and fibers per seed by 6.01–10.59%, while fiber length and strength rose by 6.98–10.38% and 2.69–6.00%, respectively”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 3.5 g L−1, fiber strength rose 2.69–6.00% over freshwater control.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 3.5 g L−1 treatmente0
- Outcome
- strengthe0
- Direction
- rosee0
- Value
- 2.69–6.00%e0
- Comparator
- CKe0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with CK, 3.5 g L−1 treatment significantly increased lint yield by 31.4%, boll number per plant by 22.45%, and fibers per seed by 6.01–10.59%, while fiber length and strength rose by 6.98–10.38% and 2.69–6.00%, respectively”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
Yield declined 8.5% at salinity 8.0 g L−1.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- salinity reached 8.0 g L−1e0
- Outcome
- yielde0
- Direction
- declinede0
- Value
- 8.5%e0
- Setting
- Xinjiangt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When salinity reached 8.0 g L−1, yield declined by 8.5%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
Yield declined 24.52% at 9.5 g L−1 salinity.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- a salinity of 9.5 g L−1e0
- Outcome
- yielde0
- Direction
- reducede0
- Value
- 24.52%e0
- Setting
- Xinjiangt0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a salinity of 9.5 g L−1 reduced yield by 24.52%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
Mid-fruiting branches maintained high lint mass per seed under high salinity.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- mid-fruiting branches (nodes 4–6)e0
- Outcome
- high lint mass per seede0
- Direction
- remained stablee0
- Qualifier
- high salinitye0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mid-fruiting branches (nodes 4–6) remained stable, maintaining high lint mass per seed even under high salinity”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 9.5 g L−1, upper-branch boll number was 56.6% lower than at 3.5 g L−1.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- upper branches (≥node 7)e0
- Treatment
- 9.5 g L−1e0
- Outcome
- boll numbere0
- Direction
- lowere0
- Value
- 56.6%e0
- Comparator
- 3.5 g L−1e0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“upper branches (≥node 7) were most sensitive; at 9.5 g L−1, the boll number (0.36) was 56.6% lower than at 3.5 g L−1 (0.83)”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
At 9.5 g L−1, the upper-branch Q-score decreased 6.7%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 9.5 g L−1e0
- Outcome
- Q-scoree0
- Direction
- decreasede0
- Value
- 6.7%e0
- Comparator
- 3.5 g L−1e0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at 9.5 g L−1, the boll number (0.36) was 56.6% lower than at 3.5 g L−1 (0.83), and the Q-score decreased by 6.7%”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
Claim · model-written summary
The authors recommend supplemental irrigation salinity no higher than 5.0 g L−1, with 3.5 g L−1 optimal.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- SWSI with ≤5.0 g L−1 salinity (optimum 3.5 g L−1)e0
- Setting
- Xinjiangt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SWSI with ≤5.0 g L−1 salinity (optimum 3.5 g L−1) simultaneously enhances lint yield and fiber quality”
t0“Cotton Yield and Fiber Quality Under Staged Saline Water Supplemental Irrigation in Xinjiang”
The same questions in other papers
salinity · yield · Gossypium hirsutum (cotton)Results differ
48 papers in the same direction as this paper · 9 in the opposite direction
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