Abstract
The agrotechnical methods of biofortification of plants, i.e. enriching them in iodine (I) and selenium (Se) could be effective methods to enrich food products in these elements. The advantage of agrotechnical methods of biofortification is the incorporation of elements in organic compounds in plants; therefore, they have better health-promoting properties than pure technical salts. Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system: two cultivars butterhead lettuces (abb. BUTL) 'Cud Voorburgu' and 'Zimująca', two cultivars iceberg lettuces (abb. ICEL) 'Maugli' and 'Królowa lata' (all this four cultivars are classified as Lactuca sativa L. var. capitata) as well two cultivars Lactuca sativa L. var. crispa L. cultivars (abb. REDL) 'Lollo rossa' and 'Redin' having little red leaves. The study included the application of I (as KIO3), Se (as Na2SeO3), and SA into the nutrient solution. The tested treatments were as follows: (1) control, (2) I+Se, (3) I+Se+0.1 mg SA dm-3, (4) I+Se+1.0 mg SA dm-3, and (5) I+Se+10.0 mg SA dm-3. KIO3 was used at a dose of 5 mg I dm-3, while Na2SeO3 was 0.5 mg Se dm-3. Regardless of the kind of the applied compound, the highest biomass of heads was produced by the REDL 'Redin' variety. Furthermore, this variety, as the only one in six varieties tested, reacted with the decrease in yield to the application of I+Se and I+Se+three concentrations of SA. In the heads of all cultivars, the level of I accumulation was 10-30 times higher than of Se. The level of I accumulation formed the following order: REDL 'Lollo rossa' > REDL 'Redin' = BUTL 'Cud Voorburgu' > BUTL 'Zimująca' > ICEL 'Maugli' > ICEL 'Królowa lata'. The order of Se content in leaves was as follows: REDL 'Redin' = BUTL 'Cud Voorburgu' > REDL 'Lollo rossa' > ICEL 'Maugli' > BUTL 'Zimująca' > ICEL 'Królowa lata'. The obtained results indicate that the introduction of SA to the nutrient solutions in hydroponic systems may allow an improve the effectiveness of - biofortification.
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Claims 6
Claim · model-written summary
Redin produced the highest head biomass regardless of the applied compound.
- Taxon
- lettuce
Lactuca sativae0 - Material
- REDL 'Redin'e2
- Outcome
- biomass of headse2
- Direction
- higheste2
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e2“Regardless of the kind of the applied compound, the highest biomass of heads was produced by the REDL 'Redin' variety”
Claim · model-written summary
Iodine and selenium with or without salicylic acid decreased the yield of Redin, the only one of six varieties to react so.
- Taxon
- lettuceLactuca sativae0
- Material
- REDL 'Redin'e2
- Treatment
- I+Se and I+Se+three concentrations of SAe3
- Outcome
- yielde3
- Direction
- decreasee3
- Qualifier
- as the only one in six varieties testede3
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e1“The tested treatments were as follows: (1) control, (2) I+Se, (3) I+Se+0.1 mg SA dm-3, (4) I+Se+1.0 mg SA dm-3, and (5) I+Se+10.0 mg SA dm-3”
e2“Regardless of the kind of the applied compound, the highest biomass of heads was produced by the REDL 'Redin' variety”
e3“this variety, as the only one in six varieties tested, reacted with the decrease in yield to the application of I+Se and I+Se+three concentrations of SA”
Claim · model-written summary
Iodine accumulation in heads of all cultivars was 10-30 times higher than selenium.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- headse4
- Outcome
- level of I accumulatione4
- Direction
- highere4
- Value
- 10-30 timese4
- Comparator
- See4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e4“In the heads of all cultivars, the level of I accumulation was 10-30 times higher than of Se”
Claim · model-written summary
Iodine accumulation in lettuce cultivars followed the order Lollo rossa > Redin = Cud Voorburgu > Zimująca > Maugli > Królowa lata.
- Taxon
- lettuceLactuca sativae0
- Outcome
- level of I accumulatione5
- Qualifier
- formed the following order: REDL 'Lollo rossa' > REDL 'Redin' = BUTL 'Cud Voorburgu' > BUTL 'Zimująca' > ICEL 'Maugli' > ICEL 'Królowa lata'e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e5“The level of I accumulation formed the following order: REDL 'Lollo rossa' > REDL 'Redin' = BUTL 'Cud Voorburgu' > BUTL 'Zimująca' > ICEL 'Maugli' > ICEL 'Królowa lata'”
Claim · model-written summary
Selenium content in leaves followed the order Redin = Cud Voorburgu > Lollo rossa > Maugli > Zimująca > Królowa lata.
- Taxon
- lettuceLactuca sativae0
- Organ / stage
- leavese6
- Outcome
- Se content in leavese6
- Qualifier
- REDL 'Redin' = BUTL 'Cud Voorburgu' > REDL 'Lollo rossa' > ICEL 'Maugli' > BUTL 'Zimująca' > ICEL 'Królowa lata'e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e6“The order of Se content in leaves was as follows: REDL 'Redin' = BUTL 'Cud Voorburgu' > REDL 'Lollo rossa' > ICEL 'Maugli' > BUTL 'Zimująca' > ICEL 'Królowa lata'”
Claim · model-written summary
Adding SA to hydroponic nutrient solutions may improve the effectiveness of biofortification.
- Taxon
- lettuceLactuca sativae0
- Treatment
- the introduction of SA to the nutrient solutions in hydroponic systemse7
- Outcome
- the effectiveness ofe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two-year studies were conducted in a greenhouse with hydroponic cultivation of three botanical varieties of lettuce in an NFT (nutrient film technique) system”
e7“the introduction of SA to the nutrient solutions in hydroponic systems may allow an improve the effectiveness of”
The same questions in other papers
selenium atom · yield · Lactuca sativa (garden lettuce)Results differ
3 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →salicylic acid · yield · Lactuca sativa (garden lettuce)Positive and negative results
5 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.