Abstract
Increased salinity of irrigation water is a major constraint affecting crop productivity in the Southern High Plains of United States of America. Adapting salt tolerant crops could be a viable option for the region. Yield formation and physiology of diverse spring safflower (Carthamus tinctorius L.) genotypes was studied under a range of salinity levels in a greenhouse experiment. Five irrigation salinity levels of 0.5 (control), 2.5, 5.0, 7.5 and 10 dS m -1 along with five genotypes of diverse origin were arranged in a randomized complete block design with four replications. Seeds per head and harvest index were the most sensitive parameters to salinity, declining 98% and 99% at 10 dS m -1 compared to control, respectively. In contrast, biomass per plant and 1000-seed weight were reduced only 43% and 56% with the same 10 dS m -1 . Plant height and head numbers were only affected at the highest salinity level (10 dS m -1 ). Increasing salinity levels decreased relative water content (RWC), leaf water potential (�� 1), osmotic potential at full turgor (�� �a 100), photosynthesis and transpiration. However, chlorophyll fluorescence was unaffected by salinity treatments. Salt tolerance of PI199898, among all the genotypes, was manifested by higher 1000-seed weight and Harvest Index (HI); this tolerance was associated with its ability to maintain higher �� 1, osmotic concentration, RWC, photosynthesis and transpiration. Safflower can be planted under moderate salinity levels of < 5 dS m -1 .
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Claims 11
Claim · model-written summary
Seeds per head declined 98% at 10 dS m -1 versus control.
- Taxon
- safflower
Carthamus tinctoriust0 - Treatment
- 10 dS m -1e0
- Outcome
- Seeds per heade0
- Direction
- declininge0
- Value
- 98%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds per head and harvest index were the most sensitive parameters to salinity, declining 98% and 99% at 10 dS m -1 compared to control, respectively”
t0“Spring Safflower”
Claim · model-written summary
Harvest index declined 99% at 10 dS m -1 versus control.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- 10 dS m -1e0
- Outcome
- harvest indexe0
- Direction
- declininge0
- Value
- 99%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds per head and harvest index were the most sensitive parameters to salinity, declining 98% and 99% at 10 dS m -1 compared to control, respectively”
t0“Spring Safflower”
Claim · model-written summary
Biomass per plant declined 43% at 10 dS m -1.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- 10 dS m -1e0
- Outcome
- biomass per plante0
- Direction
- reducede0
- Value
- 43%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biomass per plant and 1000-seed weight were reduced only 43% and 56% with the same 10 dS m -1”
t0“Spring Safflower”
Claim · model-written summary
1000-seed weight declined 56% at 10 dS m -1.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- 10 dS m -1e0
- Outcome
- 1000-seed weighte0
- Direction
- reducede0
- Value
- 56%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“biomass per plant and 1000-seed weight were reduced only 43% and 56% with the same 10 dS m -1”
t0“Spring Safflower”
Claim · model-written summary
Plant height and head numbers changed only at the highest salinity level.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- 10 dS m -1e0
- Outcome
- Plant height and head numberse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant height and head numbers were only affected at the highest salinity level (10 dS m -1 )”
t0“Spring Safflower”
Claim · model-written summary
Increasing salinity reduced relative water content, leaf water potential, and osmotic potential.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- Increasing salinity levelse0
- Outcome
- relative water content (RWC), leaf water potential (�� 1), osmotic potential at full turgor (�� �a 100)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salinity levels decreased relative water content (RWC), leaf water potential (�� 1), osmotic potential at full turgor (�� �a 100)”
t0“Spring Safflower”
Claim · model-written summary
Increasing salinity reduced photosynthesis and transpiration.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- Increasing salinity levelse0
- Outcome
- photosynthesis and transpiratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing salinity levels decreased relative water content (RWC), leaf water potential (�� 1), osmotic potential at full turgor (�� �a 100), photosynthesis and transpiration”
t0“Spring Safflower”
Claim · model-written summary
Salinity treatments did not affect chlorophyll fluorescence.
- Taxon
- safflowerCarthamus tinctoriust0
- Treatment
- salinity treatmentse0
- Outcome
- chlorophyll fluorescencee0
- Direction
- unaffectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll fluorescence was unaffected by salinity treatments”
t0“Spring Safflower”
Claim · model-written summary
PI199898 showed higher 1000-seed weight and harvest index than other genotypes.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- PI199898e0
- Outcome
- 1000-seed weight and Harvest Index (HI)e0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt tolerance of PI199898, among all the genotypes, was manifested by higher 1000-seed weight and Harvest Index (HI)”
t0“Spring Safflower”
Claim · model-written summary
PI199898 salt tolerance was associated with higher water status, photosynthesis, and transpiration.
- Taxon
- safflowerCarthamus tinctoriust0
- Material
- PI199898e1
- Outcome
- �� 1, osmotic concentration, RWC, photosynthesis and transpiratione0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this tolerance was associated with its ability to maintain higher �� 1, osmotic concentration, RWC, photosynthesis and transpiration”
e1“Salt tolerance of PI199898, among all the genotypes, was manifested by higher 1000-seed weight and Harvest Index (HI)”
t0“Spring Safflower”
Claim · model-written summary
The authors recommend safflower cultivation at salinity below 5 dS m -1.
- Taxon
- SafflowerCarthamus tinctoriuse0
- Outcome
- planted under moderate salinity levels of < 5 dS m -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Safflower can be planted under moderate salinity levels of < 5 dS m -1”
The same questions in other papers
salinity · physiology: photosynthesis · Carthamus tinctorius (safflower)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
3 papers more in this group
See all 7 papers →salinity · physiology: water · Carthamus tinctorius (safflower)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 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.