Abstract
Silicon (Si) is important as it increases plant tolerance to abiotic stresses. However, studies on in foliar fertilization are still scarce. The objective of this research was to evaluate the effect of foliar application of silicon on nutrition and production of Helianthus annuus. The study was carried with a completely randomized design, consisting of five doses of silicon (0; 0.84; 1.68; 2.52 and 3.36 mg L−1) applied as silicate, with four replicates. Biometric evaluations and relative chlorophyll index (RCI) measurements were performed, being also observed the dry matter production and the silicon use efficiency by plants. The RCI is not affected by the foliar application of Si, while the height and leaf area increase by 8.3 and 25.4%, respectively. Foliar Si application up to the dose of 3.36 g L−1 promotes linear increases in the dry matter production of shoots (32%), capitulum (19%) and the whole plant of sunflower (27%).
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Claims 6
Claim · model-written summary
Foliar silicon did not significantly affect relative chlorophyll index.
- Taxon
- Helianthus annuus
Helianthus annuust0 - Treatment
- foliar application of Sie0
- Outcome
- RCIe0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RCI is not affected by the foliar application of Si”
t0“Helianthus annuus”
Claim · model-written summary
Foliar silicon increased plant height by 8.3%.
- Taxon
- Helianthus annuusHelianthus annuust0
- Treatment
- foliar application of Sie1
- Outcome
- heighte0
- Direction
- increasee0
- Value
- 8.3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the height and leaf area increase by 8.3 and 25.4%, respectively”
t0“Helianthus annuus”
e1“The RCI is not affected by the foliar application of Si”
Claim · model-written summary
Foliar silicon increased leaf area by 25.4%.
- Taxon
- Helianthus annuusHelianthus annuust0
- Treatment
- foliar application of Sie1
- Outcome
- leaf areae0
- Direction
- increasee0
- Value
- 25.4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the height and leaf area increase by 8.3 and 25.4%, respectively”
t0“Helianthus annuus”
e1“The RCI is not affected by the foliar application of Si”
Claim · model-written summary
Foliar silicon increased shoot dry matter by 32%.
- Taxon
- Helianthus annuusHelianthus annuust0
- Treatment
- Foliar Si application up to the dose of 3.36 g L−1e0
- Outcome
- dry matter production of shootse0
- Direction
- increasese0
- Value
- 32%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar Si application up to the dose of 3.36 g L−1 promotes linear increases in the dry matter production of shoots (32%), capitulum (19%) and the whole plant of sunflower (27%).”
t0“Helianthus annuus”
Claim · model-written summary
Foliar silicon increased capitulum dry matter by 19%.
- Taxon
- Helianthus annuusHelianthus annuust0
- Treatment
- Foliar Si application up to the dose of 3.36 g L−1e0
- Outcome
- capitulume0
- Direction
- increasese0
- Value
- 19%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar Si application up to the dose of 3.36 g L−1 promotes linear increases in the dry matter production of shoots (32%), capitulum (19%) and the whole plant of sunflower (27%).”
t0“Helianthus annuus”
Claim · model-written summary
Foliar silicon increased whole-plant dry matter by 27%.
- Taxon
- Helianthus annuusHelianthus annuust0
- Treatment
- Foliar Si application up to the dose of 3.36 g L−1e0
- Outcome
- the whole plant of sunflowere0
- Direction
- increasese0
- Value
- 27%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar Si application up to the dose of 3.36 g L−1 promotes linear increases in the dry matter production of shoots (32%), capitulum (19%) and the whole plant of sunflower (27%).”
t0“Helianthus annuus”
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See all 158 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.