Abstract
Salt stress during pre-harvest limits the shelf life and post-harvest quality of produce; however, silicon nutrition can mitigate salt stress in plants. Thus, we evaluated the effects of salinity and fertilization with Si, in pre-harvest, on the morpho-physiological characteristics of onion bulbs during shelf life. The experiment was set up in randomized complete blocks, with treatments arranged in split-split plots. The plots had four levels of electrical conductivity of irrigation water (0.65, 1.7, 2.8, and 4.1 dS m−1). The subplots had five fertilization levels with Si (0, 41.6, 83.2, 124.8, and 166.4 kg ha−1). The sub-sub plots had four shelf times (0, 20, 40, and 60 days after harvest). Irrigation water salinity and shelf time reduced firmness and increased the mass loss of onion bulbs during shelf life. Salt stress reduced the contents of sugars and total soluble solids of onion bulbs during storage; however, Si supply improved the contents of these variables. Salinity, Si supply, and shelf time increased the concentrations of pyruvic and ascorbic acids in onion bulbs during shelf life. Si doses between 121.8 and 127.0 kg ha−1 attenuated the impacts caused by moderate salinity, increasing the synthesis of metabolites and prolonging the onion bulbs’ shelf life.
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Claims 6
Claim · model-written summary
Irrigation salinity and shelf time reduced onion bulb firmness.
- Taxon
- onion
Allium cepae0 - Treatment
- Irrigation water salinity and shelf timee0
- Outcome
- firmnesse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation water salinity and shelf time reduced firmness and increased the mass loss of onion bulbs during shelf life”
Claim · model-written summary
Irrigation salinity and shelf time increased onion bulb mass loss.
- Taxon
- onionAllium cepae0
- Treatment
- Irrigation water salinity and shelf timee0
- Outcome
- mass loss of onion bulbse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation water salinity and shelf time reduced firmness and increased the mass loss of onion bulbs during shelf life”
Claim · model-written summary
Salt stress reduced sugars and total soluble solids in stored onion bulbs.
- Taxon
- onionAllium cepae0
- Treatment
- Salt stresse0
- Outcome
- contents of sugars and total soluble solidse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress reduced the contents of sugars and total soluble solids of onion bulbs during storage”
Claim · model-written summary
Silicon improved sugars and soluble solids in stored onion bulbs.
- Taxon
- onionAllium cepat0
- Treatment
- Si supplye0
- Outcome
- contents of sugars and total soluble solidse1
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si supply improved the contents of these variables”
t0“Onion”
e1“contents of sugars and total soluble solids of onion bulbs”
Claim · model-written summary
Salinity, silicon supply, and shelf time increased pyruvic and ascorbic acid concentrations in onion bulbs.
- Taxon
- onionAllium cepae0
- Treatment
- Salinity, Si supply, and shelf timee0
- Outcome
- concentrations of pyruvic and ascorbic acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salinity, Si supply, and shelf time increased the concentrations of pyruvic and ascorbic acids in onion bulbs during shelf life”
Claim · model-written summary
Silicon at 121.8–127.0 kg ha−1 mitigated moderate salinity impacts, increased metabolite synthesis, and prolonged onion bulb shelf life.
- Taxon
- onionAllium cepae0
- Treatment
- Si doses between 121.8 and 127.0 kg ha−1e0
- Outcome
- synthesis of metabolites and prolonging the onion bulbs’ shelf lifee0
- Direction
- increasinge0
- Qualifier
- moderate salinitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si doses between 121.8 and 127.0 kg ha−1 attenuated the impacts caused by moderate salinity, increasing the synthesis of metabolites and prolonging the onion bulbs’ shelf life”
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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.