Abstract
Abstract Seed priming is a widely used technique in crops to obtain uniform germination and high-quality seedlings. In this study, we found a long-term effect of seed priming with gibberellic acid-3 (GA 3 ) on plant growth and production in Leymus chinensis . S eeds were germinated on agar plates containing 0–200 μM GA 3 , and the germinated seedlings were transplanted to clay planting pots and grown for about one year. The clonal tillers grown from the mother plants were transplanted to field conditions in the second year. Results showed that GA 3 treatment significantly increased seed germination rate by 14–27%. GA 3 treatment also promoted subsequent plant growth and biomass production, as shown by a significant increase in plant height, tiller number, and fresh and dry weight in both pot (2016) and field (2017) conditions. It is particularly noteworthy that the growth-promoting effect of a single seed treatment with GA 3 lasted for at least two years. In particular, GA 3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions, and 64.5% and 126.2% in field-grown conditions, respectively. These results imply a transgenerational transmission mechanism for the GA-priming effect on clonal offspring growth and biomass production in L. chinensis .
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Claims 9
Claim · model-written summary
GA3 priming increased seed germination by 14–27%.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatmente0
- Outcome
- seed germination ratee0
- Direction
- increasede0
- Value
- 14–27%e0
Not reportedComparator
Verbatim
e0“GA 3 treatment significantly increased seed germination rate by 14–27%”
e1“Leymus chinensis”
Claim · model-written summary
GA3 priming increased height and tiller number in pot and field conditions.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatmente0
- Outcome
- plant height, tiller numbere0
- Direction
- increasee0
- Setting
- pot (2016) and field (2017) conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment also promoted subsequent plant growth and biomass production, as shown by a significant increase in plant height, tiller number, and fresh and dry weight in both pot (2016) and field (2017) conditions”
e1“Leymus chinensis”
Claim · model-written summary
GA3 priming increased fresh and dry weight in pot and field conditions.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatmente0
- Outcome
- fresh and dry weighte0
- Direction
- increasee0
- Setting
- pot (2016) and field (2017) conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment also promoted subsequent plant growth and biomass production, as shown by a significant increase in plant height, tiller number, and fresh and dry weight in both pot (2016) and field (2017) conditions”
e1“Leymus chinensis”
Claim · model-written summary
The growth benefit from one GA3 seed treatment persisted at least two years.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- a single seed treatment with GA 3e0
- Outcome
- growth-promoting effecte0
- Qualifier
- at least two yearse0
Not reportedComparatorDirection
Verbatim
e0“the growth-promoting effect of a single seed treatment with GA 3 lasted for at least two years”
e1“Leymus chinensis”
Claim · model-written summary
At 50 μM GA3, pot-grown aboveground fresh weight increased 168.2%.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatment at 50 μMe0
- Outcome
- aboveground freshe0
- Direction
- increasede0
- Value
- 168.2%e0
- Setting
- pot-grown conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions”
e1“Leymus chinensis”
Claim · model-written summary
At 50 μM GA3, pot-grown aboveground dry weight increased 108.9%.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatment at 50 μMe0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 108.9%e0
- Setting
- pot-grown conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions”
e1“Leymus chinensis”
Claim · model-written summary
At 50 μM GA3, field-grown aboveground fresh weight increased 64.5%.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatment at 50 μMe0
- Outcome
- aboveground freshe0
- Direction
- increasede0
- Value
- 64.5%e0
- Setting
- field-grown conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions, and 64.5% and 126.2% in field-grown conditions, respectively”
e1“Leymus chinensis”
Claim · model-written summary
At 50 μM GA3, field-grown aboveground dry weight increased 126.2%.
- Taxon
- Leymus chinensisLeymus chinensise1
- Treatment
- GA 3 treatment at 50 μMe0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 126.2%e0
- Setting
- field-grown conditionse0
Not reportedComparator
Verbatim
e0“GA 3 treatment at 50 μM increased aboveground fresh and dry weight by 168.2% and 108.9% in pot-grown conditions, and 64.5% and 126.2% in field-grown conditions, respectively”
e1“Leymus chinensis”
Claim · model-written summary
Authors inferred transgenerational transmission of the priming effect to clonal offspring.
- Taxon
- L. chinensisLeymus chinensise0
- Outcome
- clonal offspring growth and biomass productione0
- Qualifier
- transgenerational transmission mechanisme0
Verbatim
e0“These results imply a transgenerational transmission mechanism for the GA-priming effect on clonal offspring growth and biomass production in L. chinensis”
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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.