Abstract
Climate change, environmental pollution and associated abiotic stresses are beginning to meaningfully affect agricultural production worldwide. Salt stress is, however, one of the most important threats that significantly impairs plant growth and development. Plants in their early growth stages such as seed germination, seed emergence and early seedling growth are very sensitive to salt stress. Among the range of sustainable techniques adopted to improve seed germination and early plant growth is seed priming; however, with the use of ecofriendly substances, this is one of the most effective and economically viable techniques to improve seed tolerance against such environmental stresses. For instance, priming with appropriate non-synthetic compounds including microbial biostimulants are prominent ways to sustainably address these challenges. Therefore, in this research, by using the “priming technique”, two biostimulants were tested for their potential as sustainable approaches to improve canola and soybean seed germination under salt stress and optimal growth conditions. Canola and soybean seeds were primed with flavonoids extracted from citrus fruits (flavopriming) and cell-free supernatant (CFS; produced by a novel strain of Devosia sp.—SL43), alone and in combination, and exposed to low–higher levels of salt stress and ideal growth conditions. Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions. However, increases in seed germination were greater under salinity stress as flavonoids and CFS with stress amelioration effects showed substantial and statistically significant improvements in seed germination under varying levels of salt stress. In addition, combinations (mixtures) of both biostimulants were tested to determine if their effects might be more additive or multiplicative than the individual applications. However, results suggested incompatibility of both biostimulants as none of the combinations showed better results than that of the individual applications of either flavonoids or CFS. Conceivably, the use of flavonoids and this novel Devosia sp. CFS could be significant plant growth enhancers, perhaps much better than the few other biostimulants and bacterial-based compounds currently in use.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Flavonoid priming improved soybean germination under ideal and salt-stressed conditions.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- flavonoidse1
- Outcome
- seed germinatione0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions”
e1“none of the combinations showed better results than that of the individual applications of either flavonoids or CFS”
t0“Soybean”
Claim · model-written summary
Devosia supernatant priming improved soybean germination under ideal and salt-stressed conditions.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- CFSe1
- Outcome
- seed germinatione0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions”
e1“none of the combinations showed better results than that of the individual applications of either flavonoids or CFS”
t0“Soybean”
Claim · model-written summary
Flavonoid priming improved canola germination under ideal and salt-stressed conditions.
- Taxon
- Canola
.jpg?width=60)
Brassica napus var. napust0 - Treatment
- flavonoidse1
- Outcome
- seed germinatione0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions”
e1“none of the combinations showed better results than that of the individual applications of either flavonoids or CFS”
t0“Canola”
Claim · model-written summary
Devosia supernatant priming improved canola germination under ideal and salt-stressed conditions.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- CFSe1
- Outcome
- seed germinatione0
- Direction
- improvinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both biostimulants showed promising effects by significantly improving seed germination of soybean and canola under both ideal and stressful conditions”
e1“none of the combinations showed better results than that of the individual applications of either flavonoids or CFS”
t0“Canola”
Claim · model-written summary
Germination gains were greater under salinity stress.
- Taxon
- CanolaBrassica napus var. napust0
- Outcome
- seed germinatione0
- Direction
- greatere0
- Setting
- salinity stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increases in seed germination were greater under salinity stress”
t0“Canola”
Claim · model-written summary
Combined biostimulants did not outperform individual applications.
- Taxon
- CanolaBrassica napus var. napust0
- Treatment
- combinationse0
- Outcome
- better resultse0
- Direction
- nonee0
- Comparator
- individual applications of either flavonoids or CFSe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“none of the combinations showed better results than that of the individual applications of either flavonoids or CFS”
t0“Canola”
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See all 7 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.