Abstract
Abstract The aim of conducted studies was estimation of increase manganese nutrition on content of nutrient and yielding of lettuce (Lactuca sativa L.) in hydroponic cultivation. Plants were grown in rockwool using closed system fertigation with recirculation of nutrient solution. In experiment were used nutrient solution with following nutrient contents [mg·dm -3 ]: N-NH4 < 10, N-NO3 150, P-PO 4 50, K 150, Ca 150, Mg 50, Fe 3.00, Zn 0.44, Cu 0.03, B 0.011, pH 5.50, EC 1.8 mS·cm -1 . It was studied the following manganese concentrations in nutrient solution (in [mg・dm -3 ]): 0.5, 4.8, 9.6, 19.2 (described as Mn-I, Mn-II, Mn-III and Mn-IV). It was found a significant influence of increasing manganese concentration applied in fertigation on the content of: N, K (for Mn-IV); P, Fe, Cu (for Mn-III and Mn-IV); Mg, Zn (for Mn-II to Mn-IV) in aboveground parts of lettuce. It was no differences in case of calcium and sodium content. Increasing concentration of manganese used to fertigation significantly influenced the content of Mn in plants. Manganese also affected on the SPAD measurement (decreasing at Mn-IV) and yielding of the plants (decreasing for Mn-II to Mn-IV comparing with Mn-I).
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Claims 7
Claim · model-written summary
Increasing manganese concentration significantly influenced lettuce N and K content at Mn-IV.
- Taxon
- lettuce
Lactuca sativae1 - Organ / stage
- aboveground partse1
- Treatment
- increasing manganese concentratione0
- Outcome
- content of: N, Ke0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was found a significant influence of increasing manganese concentration applied in fertigation on the content of: N, K (for Mn-IV)”
e1“in aboveground parts of lettuce.”
Claim · model-written summary
Increasing manganese significantly influenced lettuce P, Fe and Cu content at Mn-III and Mn-IV.
- Taxon
- lettuceLactuca sativae2
- Organ / stage
- aboveground partse2
- Treatment
- increasing manganese concentratione1
- Outcome
- P, Fe, Cue0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P, Fe, Cu (for Mn-III and Mn-IV)”
e1“It was found a significant influence of increasing manganese concentration applied in fertigation on the content of:”
e2“in aboveground parts of lettuce.”
Claim · model-written summary
Increasing manganese significantly influenced lettuce Mg and Zn content from Mn-II through Mn-IV.
- Taxon
- lettuceLactuca sativae2
- Organ / stage
- aboveground partse2
- Treatment
- increasing manganese concentratione1
- Outcome
- Mg, Zne0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mg, Zn (for Mn-II to Mn-IV)”
e1“It was found a significant influence of increasing manganese concentration applied in fertigation on the content of:”
e2“in aboveground parts of lettuce.”
Claim · model-written summary
Calcium and sodium content did not differ.
- Taxon
- lettuceLactuca sativae1
- Outcome
- calcium and sodium contente0
- Direction
- no differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was no differences in case of calcium and sodium content.”
e1“lettuce (Lactuca sativa L.)”
Claim · model-written summary
Increasing fertigation manganese significantly influenced plant Mn content.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Increasing concentration of manganesee0
- Outcome
- content of Mn in plantse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing concentration of manganese used to fertigation significantly influenced the content of Mn in plants.”
e1“lettuce (Lactuca sativa L.)”
Claim · model-written summary
SPAD decreased at Mn-IV.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Mn-IVe0
- Outcome
- SPAD measuremente0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Manganese also affected on the SPAD measurement (decreasing at Mn-IV)”
e1“lettuce (Lactuca sativa L.)”
Claim · model-written summary
Yield decreased at Mn-II through Mn-IV compared with Mn-I.
- Taxon
- lettuceLactuca sativae1
- Treatment
- Mn-II to Mn-IVe0
- Outcome
- yielding of the plantse0
- Direction
- decreasinge0
- Comparator
- Mn-Ie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yielding of the plants (decreasing for Mn-II to Mn-IV comparing with Mn-I)”
e1“lettuce (Lactuca sativa L.)”
The same questions in other papers
manganese atom · physiology: pigments · Lactuca sativa (garden lettuce)Positive and negative results
2 in the opposite direction
- positive
- positive
manganese atom · yield · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
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.