Abstract
In order to evaluate the effect of salinity stress on growth, yield, and some physiological traits of forage sorghum cultivars, an experiment was conducted as split-plot based on a randomized complete block design with four replications at experimental farm of College of Agriculture, Shiraz University at 2014 growing season. Treatments were three levels of saline irrigation water (0.4 as control, 7 and 14 dS/m) and three sorghum cultivars (Pegah, White speedfeed and Red speedfeed) as main plots and subplots, respectively. Results showed that salinity stress decreased plant height and leaf area. Pegah cultivar showed the highest forage dry weight in all salinity treatments. Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalase significantly increased with increasing salinity levels in Pegah and Red speedfeed cultivars. In salt-stressed Pegah these enzymes activity increased 2.1, 4.5, and 2.8 times, respectively in comparison to control. With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively whereas root sodium/potassium ratio of the cultivars increased 9.6, 8.1, and 4.7 times, respectively. It seems that the lower absorption of sodium was the major mechanism of salinity tolerance in Pegah and can be an important criterion to evaluate sorghum salinity tolerance
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Claims 14
Claim · model-written summary
Salinity stress decreased plant height and leaf area of forage sorghum.
- Taxon
- Forage Sorghumt0
- Treatment
- salinity stresse1
- Outcome
- plant height and leaf areae1
- Direction
- decreasede1
- Setting
- experimental farm of College of Agriculture, Shiraz Universitye0
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e0“at experimental farm of College of Agriculture, Shiraz University at 2014 growing season”
e1“Results showed that salinity stress decreased plant height and leaf area”
Claim · model-written summary
The Pegah cultivar had the highest forage dry weight in all salinity treatments.
Verbatim
t0“Forage Sorghum Cultivars”
e2“Pegah cultivar showed the highest forage dry weight in all salinity treatments”
Claim · model-written summary
Activities of antioxidant enzymes significantly increased with increasing salinity in Pegah and Red speedfeed.
- Taxon
- forage sorghumt0
- Material
- Pegah and Red speedfeed cultivarse3
- Treatment
- increasing salinity levelse3
- Outcome
- Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalasee3
- Direction
- significantly increasede3
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e3“Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalase significantly increased with increasing salinity levels in Pegah and Red speedfeed cultivars”
Claim · model-written summary
In salt-stressed Pegah, superoxide dismutase activity increased 2.1 times relative to control.
Verbatim
t0“Forage Sorghum Cultivars”
e3“Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalase significantly increased with increasing salinity levels in Pegah and Red speedfeed cultivars”
e4“In salt-stressed Pegah these enzymes activity increased 2.1, 4.5, and 2.8 times, respectively in comparison to control”
Claim · model-written summary
In salt-stressed Pegah, peroxidase activity increased 4.5 times relative to control.
Verbatim
t0“Forage Sorghum Cultivars”
e3“Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalase significantly increased with increasing salinity levels in Pegah and Red speedfeed cultivars”
e4“In salt-stressed Pegah these enzymes activity increased 2.1, 4.5, and 2.8 times, respectively in comparison to control”
Claim · model-written summary
In salt-stressed Pegah, catalase activity increased 2.8 times relative to control.
Verbatim
t0“Forage Sorghum Cultivars”
e3“Activity of antioxidant enzymes including superoxide dismutase, peroxidase and catalase significantly increased with increasing salinity levels in Pegah and Red speedfeed cultivars”
e4“In salt-stressed Pegah these enzymes activity increased 2.1, 4.5, and 2.8 times, respectively in comparison to control”
Claim · model-written summary
Shoot sodium/potassium ratio of White speedfeed increased 10.7 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- White speedfeede5
- Treatment
- increasing salinity levelse5
- Outcome
- shoot sodium/potassium ratioe5
- Direction
- increasede5
- Value
- 10.7e5
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
Claim · model-written summary
Shoot sodium/potassium ratio of Red speedfeed increased 6.8 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- Red speedfeede5
- Treatment
- increasing salinity levelse5
- Outcome
- shoot sodium/potassium ratioe5
- Direction
- increasede5
- Value
- 6.8e5
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
Claim · model-written summary
Shoot sodium/potassium ratio of Pegah increased 1.7 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- Pegahe5
- Treatment
- increasing salinity levelse5
- Outcome
- shoot sodium/potassium ratioe5
- Direction
- increasede5
- Value
- 1.7e5
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
Claim · model-written summary
Root sodium/potassium ratio of White speedfeed increased 9.6 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- White speedfeede5
- Treatment
- increasing salinity levelse5
- Outcome
- root sodium/potassium ratioe6
- Direction
- increasede6
- Value
- 9.6e6
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
e6“whereas root sodium/potassium ratio of the cultivars increased 9.6, 8.1, and 4.7 times, respectively”
Claim · model-written summary
Root sodium/potassium ratio of Red speedfeed increased 8.1 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- Red speedfeede5
- Treatment
- increasing salinity levelse5
- Outcome
- root sodium/potassium ratioe6
- Direction
- increasede6
- Value
- 8.1e6
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
e6“whereas root sodium/potassium ratio of the cultivars increased 9.6, 8.1, and 4.7 times, respectively”
Claim · model-written summary
Root sodium/potassium ratio of Pegah increased 4.7 times with increasing salinity.
- Taxon
- forage sorghumt0
- Material
- Pegahe5
- Treatment
- increasing salinity levelse5
- Outcome
- root sodium/potassium ratioe6
- Direction
- increasede6
- Value
- 4.7e6
Not reportedComparator
Verbatim
t0“Forage Sorghum Cultivars”
e5“With increasing salinity levels, shoot sodium/potassium ratio of White speedfeed, Red speedfeed, and Pegah cultivars increased 10.7, 6.8, and 1.7 times, respectively”
e6“whereas root sodium/potassium ratio of the cultivars increased 9.6, 8.1, and 4.7 times, respectively”
Claim · model-written summary
Lower sodium absorption is suggested to be the major mechanism of salinity tolerance in Pegah.
Verbatim
t0“Forage Sorghum Cultivars”
e7“It seems that the lower absorption of sodium was the major mechanism of salinity tolerance in Pegah”
Claim · model-written summary
Sodium absorption may be an important criterion for evaluating sorghum salinity tolerance.
- Outcome
- important criterion to evaluate sorghum salinity tolerancee7
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“and can be an important criterion to evaluate sorghum salinity tolerance”
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