Abstract
Crop wild resources are excellent sources of new genetic variation for resilience against climate extremes. However, detailed characterization of the desirable phenotypes is essential before using these crop wild resources in breeding programs. This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars. The experiment was carried out under varying levels of osmotic stress induced by polyethylene glycol and progressive water stress through different field capacities. Water stress significantly reduced both physiological and biochemical traits compared to control, ranging from 7.1% (protein content) to 34.5% (chlorophyll) under moderate stress and 9.1–45.8% under severe stress. The anatomical features were also affected under progressive water stress, including a reduction in xylem vessel diameter (7.92 and 16.50%), phloem length (4.36 and 7.18%), vascular bundle length (3.09 and 6.04%), and ground tissue thickness (2.36 and 5.52%), respectively. Conclusively, Elymus borianus (endemic to Swat, Pakistan) , E . russelli, E . caninus, E . longioristatus , and E . dauhuricus outperformed the check wheat cultivar, Pirsabak 2005, which is a rainfed variety. The results revealed that Elymus species belonging to the tertiary gene pool of bread wheat could be an excellent drought tolerance source for use in a breeding program.
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Claims 8
Claim · model-written summary
Moderate water stress reduced physiological and biochemical traits in wild Elymus species relative to control, from 7.1% to 34.5%.
- Treatment
- moderate stresse1
- Outcome
- physiological and biochemical traitse1
- Direction
- reducede1
- Value
- from 7.1% (protein content) to 34.5% (chlorophyll)e1
- Comparator
- controle1
ElymusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e1“Water stress significantly reduced both physiological and biochemical traits compared to control, ranging from 7.1% (protein content) to 34.5% (chlorophyll) under moderate stress”
Claim · model-written summary
Severe water stress reduced physiological and biochemical traits in wild Elymus species by 9.1 to 45.8% relative to control.
- Treatment
- severe stresse2
- Outcome
- physiological and biochemical traitse1
- Direction
- reducede1
- Value
- 9.1–45.8%e2
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e1“Water stress significantly reduced both physiological and biochemical traits compared to control”
e2“9.1–45.8% under severe stress”
Claim · model-written summary
Progressive water stress reduced xylem vessel diameter in wild Elymus species by 7.92 and 16.50%.
- Organ / stage
- xylem vessele3
- Treatment
- progressive water stresse3
- Outcome
- xylem vessel diametere3
- Direction
- reductione3
- Value
- 7.92 and 16.50%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e3“The anatomical features were also affected under progressive water stress, including a reduction in xylem vessel diameter (7.92 and 16.50%)”
Claim · model-written summary
Progressive water stress reduced phloem length in wild Elymus species by 4.36 and 7.18%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e3“The anatomical features were also affected under progressive water stress, including a reduction in xylem vessel diameter (7.92 and 16.50%)”
e4“phloem length (4.36 and 7.18%)”
Claim · model-written summary
Progressive water stress reduced vascular bundle length in wild Elymus species by 3.09 and 6.04%.
- Treatment
- progressive water stresse3
- Outcome
- vascular bundle lengthe5
- Direction
- reductione3
- Value
- 3.09 and 6.04%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e3“The anatomical features were also affected under progressive water stress, including a reduction in xylem vessel diameter (7.92 and 16.50%)”
e5“vascular bundle length (3.09 and 6.04%)”
Claim · model-written summary
Progressive water stress reduced ground tissue thickness in wild Elymus species by 2.36 and 5.52%.
- Treatment
- progressive water stresse3
- Outcome
- ground tissue thicknesse6
- Direction
- reductione3
- Value
- 2.36 and 5.52%e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This current study was, therefore, conducted to investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e3“The anatomical features were also affected under progressive water stress, including a reduction in xylem vessel diameter (7.92 and 16.50%)”
e6“ground tissue thickness (2.36 and 5.52%)”
Claim · model-written summary
Elymus borianus, E. russelli, E. caninus, E. longioristatus and E. dauhuricus outperformed the check wheat cultivar Pirsabak 2005 under water stress.
- Material
- Elymus borianuse7
- Treatment
- water stresse0
- Outcome
- water stress responsese0
- Direction
- outperformede7
- Comparator
- check wheat cultivar, Pirsabak 2005e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“investigate the water stress responses of eight wild Elymus species and two wheat cultivars”
e7“Elymus borianus (endemic to Swat, Pakistan) , E . russelli, E . caninus, E . longioristatus , and E . dauhuricus outperformed the check wheat cultivar, Pirsabak 2005”
Claim · model-written summary
Elymus species of the tertiary gene pool of bread wheat could be an excellent drought tolerance source for breeding.
- Outcome
- drought tolerance source for use in a breeding programe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results revealed that Elymus species belonging to the tertiary gene pool of bread wheat could be an excellent drought tolerance source for use in a breeding program”
The same questions in other papers
drought · growth · Elymus (wild rye)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.