Abstract
Constantly changing environments often negatively affect yield potential. Phytohormone-based biostimulants are known for their ability to control plant development and reduce the influences of negative environmental impacts and facilitate more efficient usage of resources. The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation. Lettuce was grown in a greenhouse with supplemental lighting; a 16 h photoperiod was maintained. Ten combinations of kinetin, indole-3-acetic acid, gibberellic acid, abscisic acid and salicylic acid were applied at 12–13 BBCH. The results thereof have shown that combining growth and stress phytohormones resulted in higher biomass formation; additionally, combining two growth or two stress hormones led to antagonistic effects and reduced photosynthetic rates. Furthermore, the application of gibberellic and salicylic acid had the most positive effect on lettuce productivity. The perspective offered by this work has shown that with the manipulation of hormone concentrations, photosynthetic and antioxidant systems can be controlled, thus enabling control of yield and quality.
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Claims 5
Claim · model-written summary
Combining growth and stress phytohormones resulted in higher lettuce biomass formation.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- combining growth and stress phytohormonese3
- Outcome
- biomass formatione3
- Direction
- highere3
- Setting
- greenhouse with supplemental lightinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“combining growth and stress phytohormones resulted in higher biomass formation”
e1“The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation”
e2“Lettuce was grown in a greenhouse with supplemental lighting”
t0“Lettuce”
Claim · model-written summary
Combining two growth or two stress hormones reduced lettuce photosynthetic rates.
- Taxon
- lettuceLactuca sativae1
- Treatment
- combining two growth or two stress hormonese4
- Outcome
- photosynthetic ratese4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“combining two growth or two stress hormones led to antagonistic effects and reduced photosynthetic rates”
e1“The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation”
t0“Lettuce”
Claim · model-written summary
Combining two growth or two stress hormones had antagonistic effects on lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- combining two growth or two stress hormonese4
- Outcome
- antagonistic effectse4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“combining two growth or two stress hormones led to antagonistic effects and reduced photosynthetic rates”
e1“The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation”
t0“Lettuce”
Claim · model-written summary
Gibberellic and salicylic acid application had the most positive effect on lettuce productivity.
- Taxon
- lettuceLactuca sativae1
- Treatment
- the application of gibberellic and salicylic acide5
- Outcome
- lettuce productivitye5
- Direction
- higherinferrede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“the application of gibberellic and salicylic acid had the most positive effect on lettuce productivity”
e1“The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation”
t0“Lettuce”
Claim · model-written summary
Manipulating hormone concentrations can control photosynthetic and antioxidant systems and thereby yield and quality of lettuce.
- Taxon
- lettuceLactuca sativae1
- Treatment
- manipulation of hormone concentrationse6
- Outcome
- control of yield and qualitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“with the manipulation of hormone concentrations, photosynthetic and antioxidant systems can be controlled, thus enabling control of yield and quality”
e1“The aim of this study was to evaluate the effect of phytohormone-based biostimulants on lettuce (Lactuca sativa L.) antioxidant and photosynthetic responses and biomass formation”
t0“Lettuce”
The same questions in other papers
salicylic acid · yield · Lactuca sativa (garden lettuce)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
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See all 6 papers →class · growth · Lactuca sativa (garden lettuce)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
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See all 10 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.