Abstract
Screening for seeds with a greater tolerance to salt stress aids in the development of salt tolerant cultivars. Seed germination is a critical point in seedling establishment and subsequent plant health and vigor. The objective of this study was to compare the salinity tolerance of ten ecotypes of two halophytic species (Agropyron elongatum and A. pectiniforme). Salinity treatments consisted of 4 treatments of 0 (control), 50, 100 and 200mM NaCl. 20 seeds of each ecotype were grown in Petri dishes on filter papers. A factorial experiment based on completely randomized design with 3 replications was conducted. The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes. Additionally the ecotypes of A. elongatum were more resistant to salinity stress in comparison to the species of another species. The minimum germination rate between these ecotypes was related to 3202, while between the salinity treatments the maximum germination rate was observed in 6990 ecotype. Only in control treatment, the maximum germination rate was related to 7819 ecotype by 100%. There was a negative correlation between two indices of mean time to germination (MTG) and DGS and other indices.
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Claims 11
Claim · model-written summary
Increasing salinity decreased germinated seeds number in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniforme
Thinopyrum elongatum
Agropyron pectiniformet0 - Treatment
- increasing of the salinity levele0
- Outcome
- germinated seeds numbere0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Increasing salinity decreased root, shoot and seedling length in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Treatment
- increasing of the salinity levele0
- Outcome
- root, shoot and seedling lengthe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Increasing salinity decreased shoot and seedling fresh weight in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Treatment
- increasing of the salinity levele0
- Outcome
- shoot and seedling fresh weighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Increasing salinity decreased mean daily germination (MDG) in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Treatment
- increasing of the salinity levele0
- Outcome
- mean daily germination (MDG)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Increasing salinity decreased seedling length vigor index (SLVI) in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Treatment
- increasing of the salinity levele0
- Outcome
- seedling length vigor index (SLVI)e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Increasing salinity increased daily germination speed in all studied ecotypes.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Treatment
- increasing of the salinity levele0
- Outcome
- daily germination speed (DGS)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that by increasing of the salinity level, germinated seeds number, root, shoot and seedling length, shoot and seedling fresh weight, mean daily germination (MDG) and seedling length vigor index (SLVI) decreased, while daily germination speed (DGS) increased in all studied ecotypes.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
A. elongatum ecotypes were more resistant to salinity stress than the other species.
- Taxon
- A. elongatumThinopyrum elongatume0
- Outcome
- resistant to salinity stresse0
- Direction
- more resistante0
- Comparator
- the species of another speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additionally the ecotypes of A. elongatum were more resistant to salinity stress in comparison to the species of another species.”
Claim · model-written summary
Ecotype 3202 had the minimum germination rate.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Material
- 3202e0
- Outcome
- germination ratee0
- Direction
- minimume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum germination rate between these ecotypes was related to 3202, while between the salinity treatments the maximum germination rate was observed in 6990 ecotype.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Ecotype 6990 had the maximum germination rate among salinity treatments.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Material
- 6990e0
- Outcome
- germination ratee0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum germination rate between these ecotypes was related to 3202, while between the salinity treatments the maximum germination rate was observed in 6990 ecotype.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
In the control, ecotype 7819 had the maximum germination rate of 100%.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Material
- 7819e0
- Treatment
- control treatmente0
- Outcome
- germination ratee0
- Direction
- maximume0
- Value
- 100%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only in control treatment, the maximum germination rate was related to 7819 ecotype by 100%.”
t0“Agropyron elongatum and A. pectiniforme”
Claim · model-written summary
Mean time to germination and daily germination speed were negatively correlated with other indices.
- Taxon
- Agropyron elongatum and A. pectiniformeThinopyrum elongatumAgropyron pectiniformet0
- Organ / stage
- germinatione0
- Outcome
- other indicese0
- Direction
- negative correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a negative correlation between two indices of mean time to germination (MTG) and DGS and other indices.”
t0“Agropyron elongatum and A. pectiniforme”
The same questions in other papers
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See all 10 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.