Abstract
Alleviation of salt stress is becoming one of the urgent needs of agricultural production. Even though enhancement of tolerance levels with genetic variation is a common approach, exogenous applications of various compounds are a newly emerging field. Here, the effects of two different plant elicitors, salicylic acid (SA) and 2,4-dichloro-6-{(E)-[(3methoxyphenyl)imino]methyl} phenol (DPMP) on growth and stress tolerance levels of forage pea (Pisum sativum ssp. arvense L.) were evaluated. Plants were exposed to salt stress (100 mM) in addition to DPMP, SA, or DMSO (Solvent) foliar spraying. The results revealed contrasting effects for each elicitor. Under non-stressed conditions, DPMP applied plants had higher values in plant height, shoot dry weight (SDW), and taproot length, while SA applied plants had significantly higher shoot fresh weight (SFW), and DMSO applied plants had higher values in root fresh (RFW) and dry (RDW) weights, and root/shoot ratios. When we evaluated stress tolerance index (STI) levels, DPMP applied plants had higher STI values in SFW, SDW, RFW, and RDW. DPMP improved STI and biomass allocation better than SA and DMSO. These elicitors may have significant potential in abiotic stress tolerance, in addition to their well-known biotic stress eliciting roles. There is a need for further research to define appropriate doses and application times.
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Claims 5
Claim · model-written summary
Under non-stressed conditions, DPMP plants had higher height, shoot dry weight, and taproot length.
- Taxon
- forage peae1
- Treatment
- DPMPe0
- Outcome
- plant height, shoot dry weight (SDW), and taproot lengthe0
- Direction
- highere0
- Qualifier
- non-stressed conditionse0
Not reportedComparator
Verbatim
e0“Under non-stressed conditions, DPMP applied plants had higher values in plant height, shoot dry weight (SDW), and taproot length”
e1“forage pea (Pisum sativum ssp. arvense L.)”
Claim · model-written summary
Under non-stressed conditions, SA plants had significantly higher shoot fresh weight.
- Taxon
- forage peae1
- Treatment
- SAe0
- Outcome
- shoot fresh weight (SFW)e0
- Direction
- highere0
- Qualifier
- non-stressed conditionse2
Not reportedComparator
Verbatim
e0“SA applied plants had significantly higher shoot fresh weight (SFW)”
e1“forage pea (Pisum sativum ssp. arvense L.)”
e2“Under non-stressed conditions”
Claim · model-written summary
Under non-stressed conditions, DMSO plants had higher root fresh and dry weights and root/shoot ratios.
- Taxon
- forage peae1
- Treatment
- DMSOe0
- Outcome
- root fresh (RFW) and dry (RDW) weights, and root/shoot ratiose0
- Direction
- highere0
- Qualifier
- non-stressed conditionse2
Not reportedComparator
Verbatim
e0“DMSO applied plants had higher values in root fresh (RFW) and dry (RDW) weights, and root/shoot ratios”
e1“forage pea (Pisum sativum ssp. arvense L.)”
e2“Under non-stressed conditions”
Claim · model-written summary
DPMP plants had higher salt stress tolerance index values for shoot and root fresh and dry weight.
Not reportedComparator
Verbatim
e0“DPMP applied plants had higher STI values in SFW, SDW, RFW, and RDW”
e1“forage pea (Pisum sativum ssp. arvense L.)”
e2“stress tolerance index (STI) levels”
Claim · model-written summary
DPMP improved stress tolerance index and biomass allocation more than SA and DMSO.
Verbatim
e0“DPMP improved STI and biomass allocation better than SA and DMSO”
e1“forage pea (Pisum sativum ssp. arvense L.)”
The same questions in other papers
salicylic acid · growth · Lathyrus oleraceus (pea)Results differ
16 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
14 papers more in this group
See all 18 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.