Abstract
Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone under rainfed conditions inDaraa province-Syria, In order to expose plants to different level of water regime, since the two zones differ in total amount of rainfall during the growing season. Plants were suffered from terminal drought stress in both zones, however, the drought was more sever in the 2nd settlement zone. All measured parameters: chlorophyll content, MSI, RWC, Fv/Fm decreased significantly in the 2nd compared to the 1st zone at all growth stages, however more reduction was recorded in drought susceptible varieties. Yield all yield components also affected negatively and drought tolerant varieties have maintained good performance in the 2nd zone. Our results proved that Chlorophyll content, MSI, RWC and Fv/Fm are good physiological indices of drought tolerance and can be used for improvement drought tolerance in wheat.
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Claims 6
Claim · model-written summary
Chlorophyll content, MSI and RWC decreased significantly in the 2nd zone compared with the 1st zone.
- Taxon
- durum wheat
Triticum turgidum subsp. durume0 - Treatment
- terminal drought stresse1
- Outcome
- chlorophyll content, MSI, RWCe2
- Direction
- decreasede2
- Comparator
- 1st zonee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone”
e1“Plants were suffered from terminal drought stress in both zones”
e2“All measured parameters: chlorophyll content, MSI, RWC, Fv/Fm decreased significantly in the 2nd compared to the 1st zone at all growth stages”
Claim · model-written summary
Fv/Fm decreased significantly in the 2nd zone compared with the 1st zone.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Treatment
- terminal drought stresse1
- Outcome
- Fv/Fme2
- Direction
- decreasede2
- Comparator
- 1st zonee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone”
e1“Plants were suffered from terminal drought stress in both zones”
e2“All measured parameters: chlorophyll content, MSI, RWC, Fv/Fm decreased significantly in the 2nd compared to the 1st zone at all growth stages”
Claim · model-written summary
Yield components were affected negatively by terminal drought.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Treatment
- terminal drought stresse1
- Outcome
- yield componentse4
- Direction
- affected negativelye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone”
e1“Plants were suffered from terminal drought stress in both zones”
e4“Yield all yield components also affected negatively”
Claim · model-written summary
Drought tolerant varieties maintained good performance in the 2nd zone.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Material
- drought tolerant varietiese5
- Outcome
- performancee5
- Setting
- 2nd zonee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone”
e5“drought tolerant varieties have maintained good performance in the 2nd zone”
Claim · model-written summary
More reduction was recorded in drought susceptible varieties than in tolerant ones.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Material
- drought susceptible varietiese3
- Outcome
- reductione3
- Direction
- more reductione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tolerant and susceptible durum wheat varieties were grown in the 1st and 2nd settlement zone”
e3“however more reduction was recorded in drought susceptible varieties”
Claim · model-written summary
Chlorophyll content, MSI, RWC and Fv/Fm can be used as physiological indices to improve drought tolerance in wheat.
- Taxon
- wheat
Triticum aestivume6 - Outcome
- drought tolerancee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Chlorophyll content, MSI, RWC and Fv/Fm are good physiological indices of drought tolerance and can be used for improvement drought tolerance in wheat”
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