Abstract
A way to alleviate excessive Mn nutrition of plants is through silicon application. The aim of the present study was to examine the effect of different Si concentrations in a nutrient solution and Si plant spraying treatments (in the form of silica sol) on the yielding and nutritional status of hydroponically grown lettuce under Mn-stress. The experiments were conducted under controlled conditions in a phytotron. The influence of the following Si levels in the nutrient solution (5.5 – control; 15.5; 23.25 and 31 mg Si dm-3) and foliar sprays (distilled water; Si solution) were investigated. Silicon supplied through fertigation significantly affected the plant’s nutrient status and alleviated the Mn stress, increasing fresh matter production, RWC (Relative Water Content) and the number of leaves per plants, while decreasing the share of dry matter. The Si nutrition did not change the content of Mn in the leaves, but caused a significant increase in N, P, Na, Fe and Si concentrations with a simultaneous decrease of Zn and Cu levels. The content of Ca, Mg and K was relatively stable (except for the treatment with the most intensive Si nutrition). Generally, the concentrations of N, P, K, Ca, Mg, Na and Fe within the tested Si range were higher than in the control, while being lower in the case of Zn and Cu. Overall, the foliar application of Si did not change plant yielding, the number of leaves on plants and most macro- and microelement concentration in leaves, but modified significantly the RWC as well as the Cu and Na content. The dry matter content under Si nutrition was varied. In summary, an effective method to alleviate Mn-stress is to apply silica sol to a nutrient solution used for plant fertigation.
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Claims 10
Claim · model-written summary
Fertigated silicon alleviated Mn stress and increased fresh matter production, RWC and leaf number.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- Silicon supplied through fertigatione0
- Outcome
- fresh matter production, RWC (Relative Water Content) and the number of leaves per plantse0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon supplied through fertigation significantly affected the plant’s nutrient status and alleviated the Mn stress, increasing fresh matter production, RWC (Relative Water Content) and the number of leaves per plants, while decreasing the share of dry matter.”
t0“lettuce”
Claim · model-written summary
Fertigated silicon decreased dry matter share.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Silicon supplied through fertigatione0
- Outcome
- share of dry mattere0
- Direction
- decreasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon supplied through fertigation significantly affected the plant’s nutrient status and alleviated the Mn stress, increasing fresh matter production, RWC (Relative Water Content) and the number of leaves per plants, while decreasing the share of dry matter.”
t0“lettuce”
Claim · model-written summary
Silicon nutrition did not change leaf Mn content.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Si nutritione0
- Outcome
- content of Mn in the leavese0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Si nutrition did not change the content of Mn in the leaves”
t0“lettuce”
Claim · model-written summary
Silicon nutrition increased N, P and Na concentrations.
- Taxon
- lettuceLactuca sativat0
- Outcome
- N, P, Nae0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused a significant increase in N, P, Na, Fe and Si concentrations”
t0“lettuce”
Claim · model-written summary
Silicon nutrition increased Fe and Si concentrations.
- Taxon
- lettuceLactuca sativat0
- Outcome
- Fe and Si concentrationse0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“caused a significant increase in N, P, Na, Fe and Si concentrations”
t0“lettuce”
Claim · model-written summary
Silicon nutrition decreased Zn and Cu levels.
- Taxon
- lettuceLactuca sativat0
- Outcome
- Zn and Cu levelse0
- Direction
- decreasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with a simultaneous decrease of Zn and Cu levels.”
t0“lettuce”
Claim · model-written summary
Ca, Mg and K content remained relatively stable except under the most intensive silicon nutrition.
- Taxon
- lettuceLactuca sativat0
- Outcome
- content of Ca, Mg and Ke0
- Direction
- relatively stablee0
- Qualifier
- except for the treatment with the most intensive Si nutritione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of Ca, Mg and K was relatively stable (except for the treatment with the most intensive Si nutrition).”
t0“lettuce”
Claim · model-written summary
Foliar silicon did not change yielding, leaf number or most leaf element concentrations.
- Taxon
- lettuceLactuca sativat0
- Treatment
- foliar application of Sie0
- Outcome
- plant yielding, the number of leaves on plants and most macro- and microelement concentration in leavese0
- Direction
- did not changee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the foliar application of Si did not change plant yielding, the number of leaves on plants and most macro- and microelement concentration in leaves”
t0“lettuce”
Claim · model-written summary
Foliar silicon significantly modified RWC and Cu and Na content.
- Taxon
- lettuceLactuca sativat0
- Outcome
- RWC as well as the Cu and Na contente0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modified significantly the RWC as well as the Cu and Na content.”
t0“lettuce”
Claim · model-written summary
The authors recommend silica sol in the nutrient solution to alleviate Mn stress.
- Taxon
- lettuceLactuca sativat0
- Outcome
- apply silica sol to a nutrient solution used for plant fertigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an effective method to alleviate Mn-stress is to apply silica sol to a nutrient solution used for plant fertigation.”
t0“lettuce”
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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.