Abstract
Studies investigating the relationships between silicon (Si) availability in different soils, Si uptake, physiological responses, and biomass yield in soybean are scarce. This study aims to evaluate the effects of Si fertilization on Si availability, uptake, physiological aspects, and biomass of soybean grown in contrasting soils. A greenhouse experiment was conducted in pots using a completely randomized factorial design with four replicates, four Si levels (0, 250, 500, and 750 kg ha−1 Si applied as silicate), and three soil types: Quartzipsamment (Q), Rhodic Hapludox (RH), and Rhodic Acrudox (RA). The highest values of net CO2 assimilation rate (A), electron transport rate, and chlorophyll a (Chla) were found for RH, and the lowest values of stomatal conductance for RA. Increasing Si rates resulted in a linear increase in soluble Si in 0.5 mol L−1 acetic acid and 0.01 mol L−1 CaCl2, leaf Si, Chla, carotenoid, and relative water content. The dry biomass of leaves + stem (DSL) and root (DR) also increased as a function of Si rates for Q and RA. The maximum DSL was obtained with 430 kg ha−1 of Si in RH. For Q, and RH, maximum DR was obtained with 425 and 350 kg ha−1 Si, respectively. The maximum values of A, and dry biomass of pod were observed with 550 and 585 kg ha−1 Si, which were 21% and 70% higher than absence of Si application. Therefore, Si fertilization increases Si availability, Si uptake and biomass yield and improvement of physiological aspects of soybean in contrasting soils.
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Claims 12
Claim · model-written summary
Rhodic Hapludox had the highest net CO2 assimilation, electron transport and chlorophyll a values.
- Taxon
- soybean
Glycine maxt0 - Outcome
- net CO2 assimilation rate (A), electron transport rate, and chlorophyll a (Chla)e0
- Direction
- higheste0
- Setting
- RHe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of net CO2 assimilation rate (A), electron transport rate, and chlorophyll a (Chla) were found for RH”
t0“soybean plants”
Claim · model-written summary
Rhodic Acrudox had the lowest stomatal conductance.
- Taxon
- soybeanGlycine maxt0
- Outcome
- stomatal conductancee0
- Direction
- loweste0
- Setting
- RAe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the lowest values of stomatal conductance for RA”
t0“soybean plants”
Claim · model-written summary
Increasing silicon increased soluble soil silicon in both extraction solutions.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Increasing Si ratese0
- Outcome
- soluble Si in 0.5 mol L−1 acetic acid and 0.01 mol L−1 CaCl2e0
- Direction
- linear increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing Si rates resulted in a linear increase in soluble Si in 0.5 mol L−1 acetic acid and 0.01 mol L−1 CaCl2”
t0“soybean plants”
Claim · model-written summary
Increasing silicon increased leaf silicon, chlorophyll a, carotenoid and relative water content.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Increasing Si ratese1
- Outcome
- leaf Si, Chla, carotenoid, and relative water contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf Si, Chla, carotenoid, and relative water content”
t0“soybean plants”
e1“Increasing Si rates resulted in a linear increase in soluble Si in 0.5 mol L−1 acetic acid and 0.01 mol L−1 CaCl2”
Claim · model-written summary
Increasing silicon increased leaf and stem dry biomass in Quartzipsamment.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Si ratese0
- Outcome
- dry biomass of leaves + stem (DSL)e0
- Direction
- increasede0
- Setting
- Qe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry biomass of leaves + stem (DSL) and root (DR) also increased as a function of Si rates for Q and RA.”
t0“soybean plants”
Claim · model-written summary
Increasing silicon increased root dry biomass in Quartzipsamment.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry biomass of leaves + stem (DSL) and root (DR) also increased as a function of Si rates for Q and RA.”
t0“soybean plants”
Claim · model-written summary
Increasing silicon increased leaf and stem dry biomass and root dry biomass in Rhodic Acrudox.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Si ratese0
- Outcome
- dry biomass of leaves + stem (DSL) and root (DR)e0
- Direction
- increasede0
- Setting
- RAe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry biomass of leaves + stem (DSL) and root (DR) also increased as a function of Si rates for Q and RA.”
t0“soybean plants”
Claim · model-written summary
Maximum leaf and stem dry biomass in Rhodic Hapludox occurred at 430 kg ha−1 silicon.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum DSL was obtained with 430 kg ha−1 of Si in RH.”
t0“soybean plants”
Claim · model-written summary
Maximum root dry biomass in Quartzipsamment occurred at 425 kg ha−1 silicon.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Q, and RH, maximum DR was obtained with 425 and 350 kg ha−1 Si, respectively.”
t0“soybean plants”
Claim · model-written summary
Maximum root dry biomass in Rhodic Hapludox occurred at 350 kg ha−1 silicon.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For Q, and RH, maximum DR was obtained with 425 and 350 kg ha−1 Si, respectively.”
t0“soybean plants”
Claim · model-written summary
Maximum net CO2 assimilation occurred at 550 kg ha−1 silicon and was 21% higher than no silicon.
- Taxon
- soybeanGlycine maxt0
- Treatment
- 550e0
- Outcome
- Ae0
- Direction
- highere0
- Value
- 21%e0
- Comparator
- absence of Si applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum values of A, and dry biomass of pod were observed with 550 and 585 kg ha−1 Si, which were 21% and 70% higher than absence of Si application.”
t0“soybean plants”
Claim · model-written summary
Maximum pod dry biomass occurred at 585 kg ha−1 silicon and was 70% higher than no silicon.
- Taxon
- soybeanGlycine maxt0
- Treatment
- 585 kg ha−1 Sie0
- Outcome
- dry biomass of pode0
- Direction
- highere0
- Value
- 70%e0
- Comparator
- absence of Si applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum values of A, and dry biomass of pod were observed with 550 and 585 kg ha−1 Si, which were 21% and 70% higher than absence of Si application.”
t0“soybean plants”
The same questions in other papers
silicon atom · growth · Glycine max (soybean)Results differ
23 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- no effect
- no effect
24 papers more in this group
See all 28 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.