Abstract
Background: The high salt level of a germinating environment can lead to reduced, delayed, and even complete inhibition of germination and seeding growth due to osmotic action and/or ion toxicity. Based on this viewpoint, the aim of this study was to investigate germination temperature and salinity effects on germination and early seedling growth of soybean, which can be sown as first and second crops. Methods: Soybean seeds were subjected to NaCl induced saline germinating media prepared in petri dishes under two different germination temperatures (20±2 and 25±2oC). Thirty sterilized seeds per petri dish were sown in ten salt treatments (0, 100, 150, 250, 750, 1000, 2250, 5000, 7500 and 10000 ppm NaCl L-1). The study was carried out according to the completely randomized design with four replications. Result: Lower temperature promoted seed germination, while the high temperature significantly inhibited the seed germination at all NaCl doses tested. As a result, 25oC temperatures, which can only be measured at the time of the second sowing, have been found to negatively affect germination and also increase the negative effects of salt. Due to the moderate tolerance of soybeans to salt stress, the germination rate was positively affected up to 750 ppm NaCl L-1 dose and resulted in severe reductions in subsequent doses. Also, the tolerance of soybean was negatively influenced by the interaction of temperature and NaCl concentration.
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Claims 7
Claim · model-written summary
Lower temperature promoted soybean seed germination.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- Lower temperaturee0
- Outcome
- seed germinatione0
- Direction
- promotede0
- Comparator
- high temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lower temperature promoted seed germination, while the high temperature significantly inhibited the seed germination at all NaCl doses tested”
t0“Soybean”
Claim · model-written summary
High temperature significantly inhibited soybean seed germination at all NaCl doses tested.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- high temperaturee0
- Outcome
- seed germinatione0
- Direction
- inhibitede0
- Qualifier
- at all NaCl doses testede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the high temperature significantly inhibited the seed germination at all NaCl doses tested”
t0“Soybean”
Claim · model-written summary
At 25oC, germination was negatively affected.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 25oC temperaturese0
- Outcome
- germinatione0
- Direction
- negatively affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“25oC temperatures, which can only be measured at the time of the second sowing, have been found to negatively affect germination”
t0“Soybean”
Claim · model-written summary
At 25oC, the negative effects of salt increased.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 25oC temperaturese0
- Outcome
- negative effects of salte0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“25oC temperatures, which can only be measured at the time of the second sowing, have been found to negatively affect germination and also increase the negative effects of salt”
t0“Soybean”
Claim · model-written summary
Soybean germination rate was positively affected at NaCl doses up to 750 ppm NaCl L-1.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- up to 750 ppm NaCl L-1 dosee0
- Outcome
- germination ratee0
- Direction
- positively affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination rate was positively affected up to 750 ppm NaCl L-1 dose”
t0“Soybean”
Claim · model-written summary
Soybean germination rate was severely reduced at NaCl doses above 750 ppm NaCl L-1.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- subsequent dosese0
- Outcome
- germination ratee0
- Direction
- severe reductionse0
- Comparator
- 750 ppm NaCl L-1 dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the germination rate was positively affected up to 750 ppm NaCl L-1 dose and resulted in severe reductions in subsequent doses”
t0“Soybean”
Claim · model-written summary
Temperature and NaCl concentration interacted to negatively influence soybean tolerance.
- Taxon
- soybeanGlycine maxe0
- Treatment
- interaction of temperature and NaCl concentratione0
- Outcome
- tolerance of soybeane0
- Direction
- negatively influencede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the tolerance of soybean was negatively influenced by the interaction of temperature and NaCl concentration”
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