Abstract
In order to figure out the mitigating effects of exogenous 2,4-epibrassinolide on seedling damage of Medicago sativa under salt stress,Medicago sativa cv.Zhongmu No.3and Longzhong treated with 150mmol/L NaCl solution were used to study the effect of EBR with different concentrations on seed germination and seedling growth.The results indicated that 1)seed germination,seedling growth and root vigor of alfalfa were restrained significantly under 150 mmol/L NaCl stress,aboveground and underground biomass were reduced as well.2)exogenous EBR mitigated the suppression effects of NaCl stress on seed germination,seedling growth and root vigor effectively,and showed an obvious concentration effect.3)under 150 mmol/L NaCl stress,10-1μmol/L EBR treatment had the best mitigating effect on alfalfa seedling,when the root vigor level in germination and seedling stage were enhanced,germination potential,germination rate,germination velocity,vigor index,sprout length,radical length and germination seedling dry weight were facilitated significantly,as well as the seedling leaf number,stem diameter,plant height,main root length,branch root number,aboveground and underground biomass.It suggested that exogenous 2,4-Epibrassinolide promoted seed germination and seedling growth of Medicago sativa under salt stress and EBR had positive impacts on inducing plant salt resistance.
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Claims 5
Claim · model-written summary
Salt stress suppressed germination, seedling growth and root vigor.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- 150 mmol/L NaCl stresse0
- Outcome
- seed germination,seedling growth and root vigore0
- Direction
- restrainede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed germination,seedling growth and root vigor of alfalfa were restrained significantly under 150 mmol/L NaCl stress”
Claim · model-written summary
Salt stress reduced aboveground and underground biomass.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 150 mmol/L NaCl stresse1
- Outcome
- aboveground and underground biomasse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“aboveground and underground biomass were reduced as well”
t0“Medicago sativa”
e1“under 150 mmol/L NaCl stress,10-1μmol/L EBR treatment”
Claim · model-written summary
Exogenous EBR mitigated salt suppression of germination, seedling growth and root vigor with a concentration effect.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- exogenous EBRe0
- Outcome
- seed germination,seedling growth and root vigore0
- Direction
- mitigatede0
- Qualifier
- obvious concentration effecte0
- Comparator
- NaCl stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous EBR mitigated the suppression effects of NaCl stress on seed germination,seedling growth and root vigor effectively,and showed an obvious concentration effect”
t0“Medicago sativa”
Claim · model-written summary
10-1μmol/L EBR gave the best mitigation under salt stress, improving root vigor and germination measures.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- 10-1μmol/L EBR treatmente0
- Outcome
- root vigor level in germination and seedling stagee0
- Direction
- enhancede0
- Qualifier
- 150 mmol/L NaCl stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under 150 mmol/L NaCl stress,10-1μmol/L EBR treatment had the best mitigating effect on alfalfa seedling,when the root vigor level in germination and seedling stage were enhanced,germination potential,germination rate,germination velocity,vigor index,sprout length,radical length and germination seedling dry weight were facilitated significantly”
Claim · model-written summary
The same EBR treatment promoted seedling leaf number, stem diameter and plant height.
- Taxon
- Medicago sativaMedicago sativat0
- Treatment
- 10-1μmol/L EBR treatmente1
- Outcome
- seedling leaf number,stem diameter,plant heighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“as well as the seedling leaf number,stem diameter,plant height,main root length,branch root number,aboveground and underground biomass”
t0“Medicago sativa”
e1“10-1μmol/L EBR treatment”
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