Abstract
This study aimed to verify the influence of silicon application in hydroponics lettuce cv Lucy Brown, on post-harvest under refrigeration. In hydroponic production silicon was used in the doses of 0, 28, 56, and 84 mg L-1 of potassium silicate. Lettuces were harvested early in the morning and immediately transported to UNESP, campus of Jaboticabal. Upon being received at the laboratory the plants were standardized in size and appearance, removing the three older leaves. The plants were placed in polystyrene trays (Styrofoam©) and packaged under the temperature at 8±2 °C and 80 ± 3% relative humidity. The experimental design was completely randomized with three replications, and two plants per repetition. The fresh matter of shoots was analyzed together with the silicon content in the leaves, the firmness, the fresh matter loss, titratable acidity, pH and enzyme activity of polyphenoloxidize and peroxides. The evaluations were performed every four days, for a total of 16 days of storage. The concentration of 84 mg L-1 silicon increased the fresh matter of the plant at harvest and post-harvest, provided less water loss and consequently greater firmness in the leaves during the storage period for lettuce at 8±2 ° C for 16 days. Key words: Lactuca sativa, hydroponic, potassium silicate, postharvest, enzyme activity, quality.
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Claims 3
Claim · model-written summary
84 mg L-1 silicon increased plant fresh matter at harvest and postharvest.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- 84 mg L-1 silicone0
- Outcome
- fresh matter of the plant at harvest and post-harveste0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of 84 mg L-1 silicon increased the fresh matter of the plant at harvest and post-harvest”
t0“lettuce”
Claim · model-written summary
84 mg L-1 silicon reduced water loss.
- Taxon
- lettuceLactuca sativat0
- Treatment
- 84 mg L-1 silicone0
- Outcome
- water losse0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of 84 mg L-1 silicon increased the fresh matter of the plant at harvest and post-harvest, provided less water loss”
t0“lettuce”
Claim · model-written summary
84 mg L-1 silicon increased leaf firmness during 16 days of refrigerated storage.
- Taxon
- lettuceLactuca sativae0
- Treatment
- 84 mg L-1 silicone0
- Outcome
- firmness in the leavese0
- Direction
- greatere0
- Qualifier
- 8±2 ° C for 16 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of 84 mg L-1 silicon increased the fresh matter of the plant at harvest and post-harvest, provided less water loss and consequently greater firmness in the leaves during the storage period for lettuce at 8±2 ° C for 16 days”
The same questions in other papers
silicon atom · yield · Lactuca sativa (garden lettuce)Results differ
1 paper in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
1 paper more in this group
See all 5 papers →silicon atom · quality: postharvest · Lactuca sativa (garden lettuce)Results agree
2 papers in the same direction as this paper
- positive
- positive
silicon atom · physiology: water · Lactuca sativa (garden lettuce)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.