Abstract
Salinity is a major abiotic stress that adversely affects wheat production in many regions of the world. Salinity stress limits wheat growth, development, and yield. Identification of salinity tolerant genotypes is critical for yield improvement. Therefore, a series of control environment experiments were carried out to evaluate the response of two spring wheat and two winter wheat cultivars (Triticum aestivum L.) to different levels of salinity. The experiments were designed in a randomized complete block design (RCBD) with five replications. Twenty seeds of each genotype were placed on pre-moistened filter paper in Petri dishes and placed in an incubator at 20 °C. The seeds were subjected to 4 levels of salinity 0, 50, 100, and 150 mM NaCl. Seedlings were harvested after 8 days, and data on final germination percentage, rate of germination, mean daily germination, shoot and root length, and seedling fresh and dry weight were recorded. The results indicated that winter and spring wheat genotypes differed significantly for germination percentages, rate of germination, mean daily germination, shoot and root lengths, and seedling fresh and dry weight. The results showed that salinity did not affect final germination percentage until salinity level reached to 100 mM NaCl; whereas seeds subjected to 100 and 150 mM NaCl retarded germination by 1 and 2 days of spring wheat, and 2-3 days of winter wheat respectively, as compared with 0 and 50 mM NaCl treatment. The data also showed that increasing salinity level significantly decreased shoot and root length, however, the study found that salinity affected root growth more severely than shoot growth of seedlings. Significantly, root length and dry weight of root ranked genotypes in the same order as their salt-tolerance. Therefore, the study concluded that the measurements of root growth would be effective criteria for screening wheat genotypes for salt tolerance at seedling stages.
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Claims 10
Claim · model-written summary
Winter and spring wheat genotypes differed significantly in germination percentage, rate of germination and mean daily germination.
- Taxon
- wheat
Triticum aestivume0 - Material
- winter and spring wheat genotypese1
- Outcome
- germination percentages, rate of germination, mean daily germinatione1
- Direction
- differede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“The results indicated that winter and spring wheat genotypes differed significantly for germination percentages, rate of germination, mean daily germination, shoot and root lengths, and seedling fresh and dry weight”
Claim · model-written summary
Winter and spring wheat genotypes differed significantly in shoot and root lengths.
- Taxon
- wheatTriticum aestivume0
- Material
- winter and spring wheat genotypese1
- Outcome
- shoot and root lengthse1
- Direction
- differede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“The results indicated that winter and spring wheat genotypes differed significantly for germination percentages, rate of germination, mean daily germination, shoot and root lengths, and seedling fresh and dry weight”
Claim · model-written summary
Winter and spring wheat genotypes differed significantly in seedling fresh and dry weight.
- Taxon
- wheatTriticum aestivume0
- Material
- winter and spring wheat genotypese1
- Outcome
- seedling fresh and dry weighte1
- Direction
- differede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“The results indicated that winter and spring wheat genotypes differed significantly for germination percentages, rate of germination, mean daily germination, shoot and root lengths, and seedling fresh and dry weight”
Claim · model-written summary
Salinity did not affect final germination percentage of wheat until 100 mM NaCl.
- Taxon
- wheatTriticum aestivume0
- Treatment
- salinitye1
- Outcome
- final germination percentagee1
- Direction
- did not affecte1
- Qualifier
- until salinity level reached to 100 mM NaCle1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“The results showed that salinity did not affect final germination percentage until salinity level reached to 100 mM NaCl”
Claim · model-written summary
Germination of spring wheat was retarded by 1 and 2 days at 100 and 150 mM NaCl compared with 0 and 50 mM NaCl.
- Taxon
- wheatTriticum aestivume0
- Material
- spring wheate0
- Treatment
- 100 and 150 mM NaCle0
- Outcome
- germinatione0
- Direction
- retardede0
- Value
- 1 and 2 dayse0
- Comparator
- 0 and 50 mM NaCl treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas seeds subjected to 100 and 150 mM NaCl retarded germination by 1 and 2 days of spring wheat, and 2-3 days of winter wheat respectively, as compared with 0 and 50 mM NaCl treatment”
Claim · model-written summary
Germination of winter wheat was retarded by 2-3 days at 100 and 150 mM NaCl compared with 0 and 50 mM NaCl.
- Taxon
- wheatTriticum aestivume0
- Material
- winter wheate0
- Treatment
- 100 and 150 mM NaCle0
- Outcome
- germinatione0
- Direction
- retardede0
- Value
- 2-3 dayse0
- Comparator
- 0 and 50 mM NaCl treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas seeds subjected to 100 and 150 mM NaCl retarded germination by 1 and 2 days of spring wheat, and 2-3 days of winter wheat respectively, as compared with 0 and 50 mM NaCl treatment”
Claim · model-written summary
Increasing salinity significantly decreased shoot and root length of wheat seedlings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- increasing salinity levele1
- Outcome
- shoot and root lengthe1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“The data also showed that increasing salinity level significantly decreased shoot and root length”
Claim · model-written summary
Salinity affected root growth of wheat seedlings more severely than shoot growth.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- seedlingse1
- Treatment
- salinitye1
- Outcome
- root growthe1
- Direction
- more severelye1
- Comparator
- shoot growthe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“the study found that salinity affected root growth more severely than shoot growth of seedlings”
Claim · model-written summary
Root length and dry weight of root ranked wheat genotypes in the same order as their salt tolerance.
- Taxon
- wheatTriticum aestivume0
- Material
- genotypese1
- Outcome
- root length and dry weight of roote1
- Direction
- same ordere1
- Comparator
- salt-tolerancee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two spring wheat and two winter wheat cultivars (Triticum aestivum L.)”
e1“Significantly, root length and dry weight of root ranked genotypes in the same order as their salt-tolerance”
Claim · model-written summary
Measurements of root growth would be effective criteria for screening wheat genotypes for salt tolerance at seedling stages.
- Taxon
- wheat genotypesTriticum aestivume0
- Outcome
- measurements of root growthe0
- Qualifier
- at seedling stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the study concluded that the measurements of root growth would be effective criteria for screening wheat genotypes for salt tolerance at seedling stages”
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See all 377 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.