Silicon foliar spraying in the reproductive stage of cotton plays an equivalent role to boron in increasing yield, and combined boron-silicon application, without polymerization, increases fiber quality

Souza, Jonás Pereira de; Campos, Cid Naudi Silva; Oliveira, Douglas Furtado; Cazetta, Jairo Osvaldo; Detoni, José Ary

doi:10.1016/j.indcrop.2022.114888

Cited by 13 publications

(11 citation statements)

References 48 publications

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“…The stability of this silicon solution is partially explained by the stabilizing effect of the sorbitol present in the product to ensure successful Si foliar application [ 32 ]. This is because adding stabilizers is an efficient alternative to reduce the polymerization of the silicon solution, thereby increasing Si leaf absorption in several crops [ 17 , 40 , 41 ], including cotton [ 10 , 30 , 32 ].…”

Section: Discussionmentioning

confidence: 99%

“…Silanol groups are formed during the polymerization and condensation of monosilicic acid. Then, the supersaturated acid solution is converted into its polymer form, forming insoluble spherical colloidal particles [ 29 ] that form long-chain networks, inducing visible changes in the solution from translucid to opaque or murky [ 30 ]. Si polymerization in aqueous solution is affected by the pH and Si concentration of the solution [ 30 , 31 ], as well by the presence of stabilizer [ 32 ].…”

Section: Introductionmentioning

confidence: 99%

“…Then, the supersaturated acid solution is converted into its polymer form, forming insoluble spherical colloidal particles [ 29 ] that form long-chain networks, inducing visible changes in the solution from translucid to opaque or murky [ 30 ]. Si polymerization in aqueous solution is affected by the pH and Si concentration of the solution [ 30 , 31 ], as well by the presence of stabilizer [ 32 ]. Stabilizers such as sorbitol help to stabilize Si monomers in solution, reducing the polymerization rate of this beneficial element and favoring its absorption [ 32 ], enabling Si addition to borate solutions for foliar application [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

“…Si polymerization in aqueous solution is affected by the pH and Si concentration of the solution [ 30 , 31 ], as well by the presence of stabilizer [ 32 ]. Stabilizers such as sorbitol help to stabilize Si monomers in solution, reducing the polymerization rate of this beneficial element and favoring its absorption [ 32 ], enabling Si addition to borate solutions for foliar application [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

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Addition of silicon to boron foliar spray in cotton plants modulates the antioxidative system attenuating boron deficiency and toxicity

et al. 2022

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Background Boron (B) nutritional disorders, either deficiency or toxicity, may lead to an increase in reactive oxygen species production, causing damage to cells. Oxidative damage in leaves can be attenuated by supplying silicon (Si). The aim of this study was to assess the effect of increasing foliar B accumulation on cotton plants to determine whether adding Si to the spray solution promotes gains to correct deficiency and toxicity of this micronutrient by decreasing oxidative stress via synthetizing proline and glycine-betaine, thereby raising dry matter production. Results B deficiency or toxicity increased H2O2 and MDA leaf concentration in cotton plants. H2O2 and MDA leaf concentration declined, with quadratic adjustment, as a function of increased leaf B accumulation. Proline and glycine-betaine leaf concentration increased under B-deficiency and B-toxicity. In addition, production of these nonenzymatic antioxidant compounds was greater in plants under toxicity, in relation to deficient plants. Adding Si to the B spray solution reduced H2O2 and MDA concentration in the plants under nutrient deficiency or toxicity. Si reduced H2O2, primarily in B-deficient plants. Si also increased proline and glycine-betaine concentration, mainly in plants under B toxicity. Dry matter production of B-deficient cotton plants increased up to an application of 1.2 g L− 1 of B. The critical B level in the spray solution for deficiency and toxicity was observed at a concentration of 0.5 and 1.9 g L− 1 of B, respectively, in the presence of Si, and 0.4 and 1.9 g L− 1 of B without it. In addition, the presence of Si in the B solution raised dry matter production in all B concentrations evaluated in this study. Conclusion Our findings demonstrated that adding Si to a B solution is important in the foliar spraying of cotton plants because it increases proline and glycine-betaine production and reduces H2O2 and MDA concentration, in addition to mitigating the oxidative stress in cotton plants under B deficiency or toxicity.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Addition of silicon to boron foliar spray in cotton plants modulates the antioxidative system attenuating boron deficiency and toxicity

et al. 2022

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“…Sorghum plants have specific transporters for Si absorption (such as LSi 1 and LSi 2 ) which are highly efficient in the root absorption of Si 11 , thus including sorghum in the group of Si-accumulating plants 10 . In addition, studies indicated that silicate fertilization mitigates nutritional stresses such as ammonium toxicity 12 , boron deficiency 13 , 14 , and manganese deficiency 15 . Furthermore, Si can regulate the levels of endogenous plant hormones under stress conditions, such as abscisic acid and gibberellins 16 .…”

Section: Introductionmentioning

confidence: 99%

Silicon modifies C:N:P stoichiometry and improves the physiological efficiency and dry matter mass production of sorghum grown under nutritional sufficiency

Carvalho

Frazão

Prado

et al. 2022

Sci Rep

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Silicon (Si) may be involved in the modification of C:N:P stoichiometry and in physiological processes, increasing sorghum growth and grain production. The objective was to evaluate the effect of Si supply on C:N:P:Si stoichiometry, physiological response, growth, and grain production of sorghum. The experiment was carried out in pots with four concentrations of Si: 0; 1.2; 2.4; and 3.6 mmol L−1 in a completely randomized design, with six replicates. Physiological attributes and dark green color index were measured and grain and biomass production were determined. Posteriorly, the plant material was ground to determine silicon (Si), carbon (C), nitrogen (N), and phosphorus (P) contents in order to analyze C:N:P:Si stoichiometry. C:Si and C:N ratios decreased at all Si concentrations applied (1.2, 2.4, and 3.6 mmol L−1) and in all plant parts studied, being lower at 3.6 mmol L−1. The lowest C:P ratios of leaves and roots were observed at 3.6 mmol L−1 Si and the lowest C:P ratio of stems was observed at 1.2 mmol L−1 Si. Si concentrations were not significant for the N:P ratio of leaves. The highest N:P ratio of stems was observed at 3.6 mmol L−1, while the lowest N:P ratio of roots was observed at 2.4 and 3.6 mmol L−1. Regardless of photosynthetic parameters, the application of 1.2 mmol L−1 Si enhanced photosynthetic rate. The application of 2.4 and 3.6 mmol L−1 enhanced stomatal conductance and dark green color index. The mass of 1000 grains was not influenced by Si applications, while Si applications at all concentrations studied (1.2, 2.4, and 3.6 mmol L−1) enhanced shoot and total dry matter, not affecting root dry matter and grain production. In conclusion, Si supply modifies C:N:P:Si stoichiometry and increases physiologic parameters, growth, development, and grain production in sorghum.

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Improving cotton yield and fiber quality in different tropical soils with boron fertilization

Cordeiro,

Malenowtch,

Cordeiro

et al. 2024

Agronomy Journal

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Cotton (Gossypium hirsutum L.) is responsive to boron (B) fertilization when there is low soil availability, but the best source and rate to be used and whether this response is dependent on soil texture are still unknown. This study aimed to adjust boron fertilization for cotton as a function of the production environment and B source used. Two field experiments were conducted in the 2020/2021 season in Chapadão do Sul, MS (clayey soil—adequate B content) and Dracena, SP (sandy soil—low B content), Brazil. Treatments consisted of B sources (ulexite [low solubility], borax pentahydrate [BP] [intermediate solubility], and boric acid [BA] [high solubility]), and B rates (0, 1, 2, 4, and 6 kg ha−1) applied to the soil at 25 days after plant emergence. In sandy soil with low B content, application of 2 (high and medium solubility sources) and 4 kg B ha−1 (low solubility source) improved fiber yield between 10% (210 kg ha−1 fiber) and 28% (555 kg ha−1), respectively, as well as micronaire index, strength, elongation, uniformity, and short fibers. Application of B greater than 4 kg ha−1 via soluble sources reduced (between 9% (175 kg ha−1)—BP and 14% (257 kg ha−1)—BA) fiber yield only in sandy soil. When B content in the soil is adequate, B fertilization did not improve yield, but increased fiber strength (4%—1.1 g tex−1) and reduced the short fiber index (16%) by applying 1 kg B ha−1, regardless of the source used. The highest fiber yields were obtained with leaf B contents between 12 and 17 mg kg−1 (sandy soil) and 25 and 27 mg kg−1 (clayey soil). We recommend applying 2 kg B ha−1 (solubility sources) and 4 kg B ha−1 (low solubility source) in sandy soils with low B content to improve yield and fiber quality, and 1 kg B ha−1 in clayey soil with adequate B content to improve fiber quality and replace B amounts removed through harvesting.

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Silicon foliar spraying in the reproductive stage of cotton plays an equivalent role to boron in increasing yield, and combined boron-silicon application, without polymerization, increases fiber quality

Cited by 13 publications

References 48 publications

Addition of silicon to boron foliar spray in cotton plants modulates the antioxidative system attenuating boron deficiency and toxicity

Addition of silicon to boron foliar spray in cotton plants modulates the antioxidative system attenuating boron deficiency and toxicity

Silicon modifies C:N:P stoichiometry and improves the physiological efficiency and dry matter mass production of sorghum grown under nutritional sufficiency

Improving cotton yield and fiber quality in different tropical soils with boron fertilization

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