Abstract
The application of selenium (Se) to tomatoes enhances accumulation of bioactive compounds. The physiological window of Se is very narrow, and Se overdose reduces the yield. Glycine betaine was shown to reduce Se’s negative effects on plants and to potentiate its beneficial effects. In this study, baker’s yeast vinasse (BYV), as an affordable source of glycine betaine, was tested for its interaction with Se in an optimized foliar fertilizer. The application dose was selected after a laboratory experiment, wherein assays on plant height, leaves surfaces, stomatal conductance, and chlorophyll fluorescence were done. The Se and BYV supplemented foliar fertilizers were tested for their effects on accumulation of bioactives in drip-irrigated tomatoes cultivated in a greenhouse. Under laboratory conditions, assays demonstrated Se and BYV induced effects on tomatoes plants. Both the stomatal conductance and photosynthesis efficiency increased compared to a water treated control. The greenhouse experiment demonstrated that BYV and Se addition increases the number of tomato fruits in the “extra” marketable class and enhances the accumulation of ascorbic acid, carotenes, polyphenols, and flavonoids. The effects depend on the composition of the foliar fertilizer, the most significant effects being recorded for the foliar applied product with the highest BYV and nitrogen content.
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Claims 5
Claim · model-written summary
Se and BYV increased stomatal conductance and photosynthesis efficiency against water control.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Outcome
- stomatal conductance and photosynthesis efficiencye0
- Direction
- increasede0
- Comparator
- water treated controle0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Both the stomatal conductance and photosynthesis efficiency increased compared to a water treated control.”
Claim · model-written summary
BYV and Se increased the number of extra-market tomato fruits in greenhouse cultivation.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- BYV and Se additione0
- Outcome
- number of tomato fruits in the “extra” marketable classe0
- Direction
- increasese0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The greenhouse experiment demonstrated that BYV and Se addition increases the number of tomato fruits in the “extra” marketable class”
Claim · model-written summary
BYV and Se enhanced accumulation of ascorbic acid, carotenes, and polyphenols.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- BYV and Se additione0
- Outcome
- accumulation of ascorbic acid, carotenes, polyphenolse0
- Direction
- enhancese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“BYV and Se addition increases the number of tomato fruits in the “extra” marketable class and enhances the accumulation of ascorbic acid, carotenes, polyphenols, and flavonoids.”
Claim · model-written summary
BYV and Se enhanced flavonoid accumulation.
- Taxon
- TomatoesSolanum lycopersicumt0
- Outcome
- flavonoidse0
- Direction
- enhancese0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“enhances the accumulation of ascorbic acid, carotenes, polyphenols, and flavonoids.”
Claim · model-written summary
Fertilizer effects depended on composition, with greatest effects for highest BYV and nitrogen content.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- foliar applied product with the highest BYV and nitrogen contente0
- Outcome
- effectse0
- Direction
- most significante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The effects depend on the composition of the foliar fertilizer, the most significant effects being recorded for the foliar applied product with the highest BYV and nitrogen content.”
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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.