Absorção de silício, produtividade e incidência de Diatraea saccharalis em cultivares de cana-de-açúcar

Camargo, Mônica Sartori de; Korndörfer, Gaspar Henrique; Foltran, Dulcinéia Elizabete; Henrique, Celina Maria; Rossetto, Raffaella

doi:10.1590/s0006-87052010000400020

Cited by 15 publications

(10 citation statements)

References 8 publications

(8 reference statements)

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“…Regarding of the attack site, the African sugarcane borer prefers to penetrate through sugarcane bud scales, where Si accumulation is proportionately less than in the internode and root areas (KEEPING; KVEDARAS; BRUTON, 2009). Silicate-induced Si accumulation in sugarcane leaves resulted in the partial control of the sugarcane borer (D. saccharalis) (CAMARGO et al, 2010). Stalk Si levels increased in proportion to the doses of silicate applied, and reductions of 20% in insect mass and 23% in the amount of stalks bored were found when 5,000 kg ha -1 of CaSiO 3 (equivalent of 396 kg of pure Si) were applied (KEEPING; MEYER, 2002).…”

Section: Silicon Effects Against the Environmental Stressesmentioning

confidence: 99%

Silicon: fertilization and nutrition in higher plants

Marafon¹,

Endres²

2013

RCA

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ABSTRACT:In this study, we aimed to provide information about the use of silicates in plant cultivation. Although silicon (Si) is one of the most abundant elements found in most soils in substantial quantities, various classes of soils, mainly the sandy ones, present low amounts of available Si in their upper horizons. In these soils, some plants such as sugarcane and rice, which have keen ability to accumulate Si in their tissues, can respond favorably to silicon fertilization. Silicates behave similarly to calcium and magnesium carbonates in soil, promoting chemical reactions similar to those induced by limestone, including pH increase, precipitation of toxic aluminum (Al 3+ ) and manganese (Mn 2+ ), increase of exchangeable calcium and magnesium and base saturation levels, and reduction of Al 3+ saturation, with the additional benefit of increasing Si levels in soils. Si benefits to plants are related mainly with increasing their resistance to attacks by insect pests, nematodes and diseases, and with reducing their transpiration rate, which provides further tolerance to water stress during periods of low soil moisture. RESUMO

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Section: Silicon Effects Against the Environmental Stressesmentioning

confidence: 99%

Silicon: fertilization and nutrition in higher plants

Marafon¹,

Endres²

2013

RCA

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“…Although there was an increase in Si contents in the minicuttings with the increase of the applied dose with the nutrient solution, it is observed that these values are still low when compared to those obtained for some agricultural crops, mainly grasses [29,30,31,32].…”

Section: Resultsmentioning

confidence: 70%

Effect of Different Varieties and Silicon Fertilizer on the Rooting Efficiency and Productivity of Mini-Cuttings and Powdery Mildew Disease of Eucalypt

Caiafa

Paiva

Sartori

2019

JEAI

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Considering that silicon (Si) is a nutrient that stands out in the control of fungal diseases and in the increase in productivity of several cultures, this study intend to evaluate its influence on the productivity and severity of mildew in mini-stumps, as well as rooting of eucalyptus mini-cuttings. The experiment was carried out in a randomized block design with four replications in split plot scheme, the first factor related to Silicon doses (0, 0.5, 1.0, 1.5 and 2 mmol L-1) and the second factor related to five clones of Eucalyptus grandis x Eucalyptus urophylla hybrids (I144, I224, 3334, GG100, GG680). The following variables were evaluated: Si content in mini-cuttings, powdery mildew severity and mini-stumps productivity, and rooting of mini-cuttings. The highest absorption of Si was obtained with a dose of 1.22 mmol L-1 (0.14%). There was no influence of the nutrient solution containing Si on the productivity of mini-stumps, powdery mildew severity or rooting of eucalyptus mini-cuttings. Clones GG100 and 3334 presented, respectively, the best and worst results for all evaluated variables.

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“…Concentrations superior to 10 g kg −1 Si in the top visible dewlap (TVD) leaves are considered adequate for sugarcane growth (Anderson and Bowen 1992). Although it was already known that leaves contain higher Si concentrations than stalks (Camargo et al 2010;Keeping et al 2013), the results of the distribution of Si between aerial parts and root systems in sugarcane regarding the function of Si rates have not been previously published. Additionally, differences in Si concentration in leaves among sugarcane cultivars have already reported (Berthelsen et al 1999;Camargo et al 2010), but there are still few results in contrasting droughttolerant cultivars, which could contain lower Si contents (Bezerra et al 2019;Camargo et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Increase in Silicate Fertilization Improves the Biomass of Drought-Tolerant Contrasting Cultivars Without Prejudicial effects in Nutrient Uptake in Sugarcane

Camargo

Bozza

Pereira

et al. 2020

J Soil Sci Plant Nutr

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Studies are still scarce about silicate fertilization as a silicon (Si) supply to drought-tolerant contrasting sugarcane cultivars. The objective was determined whether the increase of Si rates up to 1000 kg ha −1 Si improves the Si in soil, Si uptake, and biomass of aerial part and root system of sugarcane without prejudicial effects in chemical attributes of soil and in nutrients absorption and whether Si concentration and biomass of drought-sensitive are increased similar to that of drought-tolerant sugarcane cultivar in the function of Si rates. An experiment was conducted in randomized blocks with cultivars (RB86-7515 = drought-tolerant; RB85-5536 = and drought-sensitive) and Si rates (0, 250, 500, 750, and 1000 kg ha −1 Si) using silicate in sandy soil. Fertilization increased Si contents in soil, Si contents and biomass of straw and stalks, Si in green leaves, and biomass of roots, independent of cultivars. The Si rates improved also the Ca in green leaves and Mn in straw, but reduced Ca and Mg in the soil and Mg concentration in the straw. Lower biomass and higher Si concentration were found in RB85-5536, and it was also true in RB86-7515 for the roots. Fertilization with Si rates up to 1000 kg ha −1 Si as silicate in sandy soil was not excessive, increasing Si availability, Si uptake in straw, green leaves, and stalks, and aerial part and root biomass, independently of cultivar without prejudicial effects in chemical attributes of soil and nutrient uptake in sugarcane.

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Absorção de silício, produtividade e incidência de Diatraea saccharalis em cultivares de cana-de-açúcar

Cited by 15 publications

References 8 publications

Silicon: fertilization and nutrition in higher plants

Silicon: fertilization and nutrition in higher plants

Effect of Different Varieties and Silicon Fertilizer on the Rooting Efficiency and Productivity of Mini-Cuttings and Powdery Mildew Disease of Eucalypt

Increase in Silicate Fertilization Improves the Biomass of Drought-Tolerant Contrasting Cultivars Without Prejudicial effects in Nutrient Uptake in Sugarcane

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