2021
DOI: 10.48075/actaiguaz.v10i1.26801
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Qualidade, desempenho fitotécnico e incidência de artrópodes em rabanete submetido ao silício e mulching

Abstract: O rabanete Raphanus sativus L. é uma hortaliça de ciclo curto e grande rusticidade. No entanto, o ataque de pragas e a variação da disponibilidade hídrica no solo são fatores que podem afetar a produtividade desta cultura. Assim, objetivou-se neste trabalho avaliar o efeito do silício (Si) e do mulching na qualidade, desempenho fitotécnico e incidência de artrópodes em rabanete. Para isso foi utilizado o delineamento em blocos casualizados em esquema fatorial 2 (adubação silicatada - 0 e 3 g L-1 de SiO2) x 2 (… Show more

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“…Recently in radish, cultivar Crimson Gigante, spraying with Silicon AgriSil ® (98% of SiO2) at concentrations 0 and 3 g L -1 of SiO2, in isolation or associated with mulching, also did not contribute to reduce the number of leaves with defoliation, similar to what was verified in the present study. However, the highest percentage of defoliation was reported in control plants compared to those that were treated at the concentration of 3 g L -1 , a fact that demonstrates that, depending on the crop, the percentage of SiO2 associated with the product and the concentration used, silicon can promote protection of plants against the attack of herbivore insects, making them less injuried, although it was not detected in the present study (RODRIGUES et al 2021). With regard to preference for oviposition, in the visual evaluation there was a significant difference between the treatments by deviance analysis for the number of eggs laid by the whitefly females Bemisia tabaci (Hemiptera: Aleyrodidae) (p<0.01) and Lema bilineata (Coleoptera: Chrysomelidae) (p=0.0120), although the same was not detected for the chrysopide predator Chrysoperla spp.…”
Section: Resultscontrasting
confidence: 69%
“…Recently in radish, cultivar Crimson Gigante, spraying with Silicon AgriSil ® (98% of SiO2) at concentrations 0 and 3 g L -1 of SiO2, in isolation or associated with mulching, also did not contribute to reduce the number of leaves with defoliation, similar to what was verified in the present study. However, the highest percentage of defoliation was reported in control plants compared to those that were treated at the concentration of 3 g L -1 , a fact that demonstrates that, depending on the crop, the percentage of SiO2 associated with the product and the concentration used, silicon can promote protection of plants against the attack of herbivore insects, making them less injuried, although it was not detected in the present study (RODRIGUES et al 2021). With regard to preference for oviposition, in the visual evaluation there was a significant difference between the treatments by deviance analysis for the number of eggs laid by the whitefly females Bemisia tabaci (Hemiptera: Aleyrodidae) (p<0.01) and Lema bilineata (Coleoptera: Chrysomelidae) (p=0.0120), although the same was not detected for the chrysopide predator Chrysoperla spp.…”
Section: Resultscontrasting
confidence: 69%