Abstract
Sorghum is rated as moderately salt tolerant and can produce profitable crops on saline soils. This study was conducted to evaluate the effect of salinity on the germination and emergence of sorghum cultivars, and to investigate the potential for genetic salt tolerance during the germination and early vegetative growth. Seeds of 13 sorghum cultivars were germinated using U.S.S. lab staff saline solution at 5 different salt concentrations for 10 days. Germination percentage, root and shoot length, seedling dry weight, root/shoot dry weight ratio, and total dry weight salt susceptibility index were investigated in this study. The germination results revealed that the increasing salt concentrations decreased germination and seedling growth in all the cultivars. The extent of decrease varied with cultivars and salt concentrations. All cultivars germinated in all salinities but at 10 and 12 EC level of salinity, the highest and lowest germination percentage was obtained for CSV-15 and PANT1cultivars respectively. It is found that salt stress significantly decreased root length, shoot length, and seedling dry weight of sorghum cultivars. In the presence of high salt concentration (10 and 12 EC), CSV-15 and HC-171 cultivars showed the greatest shoot length, root length, and total dry weight. At the first development stage, the shoot growth of sorghum cultivar was more adversely affected compared to the root growth by salt stress. Statistical analysis showed substantial intra-specific variation in salinity tolerance. On the basis of germination percentage, total dry weight reduction, root and shoot length reduction, and salt susceptibility indices at 7.2, 10, and 12 EC levels of salinity only three sorghum cultivars (CSV-15, HD-19, and HC-171) out of thirteen were classified as salt tolerant. On the other hand sensitivity against salinity was observed in PANT-1, PANT-2, HC-308, HC-513, and HC-260 and so, these are grouped under salt sensitive group. Based on the results of the experiment, CSV-15, HD-19 and HC-171 can be useful as genetic resources for the development of sorghum cultivars with improved germination under salt stress.
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Claims 14
Claim · model-written summary
Increasing salt concentrations decreased germination in all cultivars.
Not reportedTaxonComparator
Verbatim
e0“increasing salt concentrations decreased germination and seedling growth in all the cultivars.”
Claim · model-written summary
Increasing salt concentrations decreased seedling growth in all cultivars.
Not reportedTaxonComparator
Verbatim
e0“increasing salt concentrations decreased germination and seedling growth in all the cultivars.”
Claim · model-written summary
The magnitude of the salt response varied among cultivars and salt concentrations.
Not reportedTaxonDirection
Verbatim
e0“The extent of decrease varied with cultivars and salt concentrations.”
Claim · model-written summary
All cultivars germinated at every tested salinity.
- Outcome
- germinated in all salinitiese0
Not reportedTaxonDirection
Verbatim
e0“All cultivars germinated in all salinities”
Claim · model-written summary
CSV-15 had the highest germination percentage at 10 and 12 EC.
- Material
- CSV-15e0
- Treatment
- 10 and 12 EC level of salinitye0
- Outcome
- germination percentagee0
- Direction
- higheste0
Not reportedTaxon
Verbatim
e0“at 10 and 12 EC level of salinity, the highest and lowest germination percentage was obtained for CSV-15 and PANT1cultivars respectively.”
Claim · model-written summary
PANT1 had the lowest germination percentage at 10 and 12 EC.
- Material
- PANT1e0
- Treatment
- 10 and 12 EC level of salinitye0
- Outcome
- germination percentagee0
- Direction
- loweste0
Not reportedTaxon
Verbatim
e0“at 10 and 12 EC level of salinity, the highest and lowest germination percentage was obtained for CSV-15 and PANT1cultivars respectively.”
Claim · model-written summary
Salt stress significantly decreased root length, shoot length and seedling dry weight.
- Treatment
- salt stresse0
- Outcome
- root length, shoot length, and seedling dry weighte0
- Direction
- decreasede0
SorghumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt stress significantly decreased root length, shoot length, and seedling dry weight of sorghum cultivars.”
Claim · model-written summary
CSV-15 showed greatest shoot length, root length and total dry weight at 10 and 12 EC.
- Material
- CSV-15e0
- Treatment
- high salt concentration (10 and 12 EC)e0
- Outcome
- shoot length, root length, and total dry weighte0
- Direction
- greateste0
Not reportedTaxon
Verbatim
e0“In the presence of high salt concentration (10 and 12 EC), CSV-15 and HC-171 cultivars showed the greatest shoot length, root length, and total dry weight.”
Claim · model-written summary
HC-171 showed greatest shoot length, root length and total dry weight at 10 and 12 EC.
- Material
- HC-171e0
- Treatment
- high salt concentration (10 and 12 EC)e0
- Outcome
- shoot length, root length, and total dry weighte0
- Direction
- greateste0
Not reportedTaxon
Verbatim
e0“In the presence of high salt concentration (10 and 12 EC), CSV-15 and HC-171 cultivars showed the greatest shoot length, root length, and total dry weight.”
Claim · model-written summary
Shoot growth was more adversely affected than root growth by salt stress at the first development stage.
- Organ / stage
- first development stagee0
- Treatment
- salt stresse0
- Outcome
- shoot growthe0
- Direction
- more adversely affectede0
- Comparator
- root growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the first development stage, the shoot growth of sorghum cultivar was more adversely affected compared to the root growth by salt stress.”
Claim · model-written summary
Salinity tolerance varied substantially within sorghum.
- Outcome
- intra-specific variation in salinity tolerancee0
Not reportedTaxon
Verbatim
e0“Statistical analysis showed substantial intra-specific variation in salinity tolerance.”
Claim · model-written summary
CSV-15, HD-19 and HC-171 were classified as salt tolerant.
Not reportedTaxon
Verbatim
e0“CSV-15, HD-19, and HC-171) out of thirteen were classified as salt tolerant.”
Claim · model-written summary
PANT-1, PANT-2, HC-308, HC-513 and HC-260 were classified as salt sensitive.
Not reportedTaxon
Verbatim
e0“sensitivity against salinity was observed in PANT-1, PANT-2, HC-308, HC-513, and HC-260 and so, these are grouped under salt sensitive group.”
Claim · model-written summary
CSV-15, HD-19 and HC-171 may be useful genetic resources for improving germination under salt stress.
- Material
- CSV-15, HD-19 and HC-171e0
- Outcome
- genetic resources for the development of sorghum cultivars with improved germination under salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CSV-15, HD-19 and HC-171 can be useful as genetic resources for the development of sorghum cultivars with improved germination under salt stress.”
The same questions in other papers
salinity · growth · SorghumResults differ
77 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- negative
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See all 89 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.