Silício em plantas de feijão e arroz: absorção, transporte, redistribuição e tolerância ao cádmio

Oliveira, Lilian Aparecida de

doi:10.11606/t.64.2009.tde-03122009-094223

Cited by 12 publications

(16 citation statements)

References 86 publications

(335 reference statements)

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“…These results highlight the different Si response between Fabaceae and Poaceae. They also corroborate with those obtained using a Si nutrient solution, whereby rice and wheat (accumulative) showed a low absorption of Si in the initial phase, which gradually increased over time, while bean and soy (non-accumulative) only absorbed high levels of Si in the initial week (Oliveira 2009).…”

Section: Discussionsupporting

confidence: 87%

Influence of Rocksil®, Silifort® and Wollastonite on Penetration and Development of Meloidogyne javanica in Poaceae and Fabaceae

Mattei

Dias‐Arieira

Lopes

et al. 2016

Journal of Phytopathology

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Silicates have the potential to induce disease resistance in plants. Induction of nematode resistance usually results from paralysis of nurse cell development or activation of the hypersensitivity response. This study aimed to evaluate the effects of silicon (Si) treatment on the penetration and development of Meloidogyne javanica in various crops. The experiment was set up in a randomized (3 × 4) + 1 factorial design, with 3 Si sources (Silifort®, Rocksil® and wollastonite), 4 crops (maize, rice, common bean and soybean) and 1 treatment control (distilled water). The Si treatments included adding wollastonite to the soil 10 days prior to seedling transplantation, or spraying with solutions of Silifort® or Rocksil®, 2 days after seedlings transplantation. Twelve days after transplantation, the plants were inoculated with 1000 eggs and eventual second‐stage juveniles (J2) of M. javanica. At 3, 8, 13 and 18 days after inoculation (DAI), the plants were harvested and nematode penetration evaluated by optical microscopy. All Si treatments adversely affected development of M. javanica in soybean, common bean and rice and reduced nematode penetration of rice roots. Silifort® and wollastonite reduced nematode penetration in common bean and soybean roots, respectively. However, none of the Si treatments influenced the variables analysed in maize. The results of this study illustrate the potential of Si treatment to control M. javanica parasitism in plants.

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Section: Discussionsupporting

confidence: 87%

Influence of Rocksil®, Silifort® and Wollastonite on Penetration and Development of Meloidogyne javanica in Poaceae and Fabaceae

Mattei

Dias‐Arieira

Lopes

et al. 2016

Journal of Phytopathology

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“…Similarly, the study by Pereira Júnior, Rezende 27 on the response of soybean to different doses of silicon found a positive response for plant height and number of pods per plant with increasing doses. Conversely, Oliveira 28 reported that the application of silicon in the nutrients solution to soybean plants did not have a significant effect on dry matter production 30, 45 and 60 days after emergency. Silicon absorption by soybean plants is highly variable and may in some cases do not show effects on the analyzed variables, because such effects may be associated to more internal features of the plants, for example to the growth of the cell wall or to the resistance to pests and diseases and to biotic and abiotic stress factors.…”

Section: Discussionmentioning

confidence: 94%

Performance of Soybean Seedlings Upon Nutrient Application by Seed Coating

Rufino

Tavares

Martín-Ramos

et al. 2017

Braz. arch. biol. technol.

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“…Também está envolvido na tolerância a estresses abióticos, como o salino, tornando as células mais tolerantes (EPSTEIN, 1999). Esses fatores fizeram com que, no Brasil, o silício passasse a fazer parte da lista de micronutrientes, embora as pesquisas ainda não tenham demonstrado a essencialidade deste elemento (OLIVEIRA, 2009). …”

Section: Introductionunclassified

Aplicação de silício em milho e feijão-de-corda sob estresse salino

Lima¹,

Castro²,

Vidal³

et al. 2011

Rev. Ciênc. Agron.

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Resumo -Apesar de não ser um nutriente essencial, o silício pode aumentar o potencial produtivo de algumas culturas e tem sido utilizado para atenuar os efeitos tóxicos do estresse salino. Nesse sentido, objetivou-se avaliar o efeito do silicato de sódio aplicado sob dois modos diferentes em plântulas de milho e feijão-de-corda submetidas à salinidade. Em casa de vegetação, as plântulas receberam uma dose de Na 2 SiO 3 a 1 mM, via aplicação foliar ou diretamente na solução nutritiva, e foram cultivadas na presença ou ausência de NaCl a 100 mM, durante 15 dias. Foram avaliados a matéria seca de folhas, caules e raízes, a área foliar e o vazamento de eletrólitos em folhas e raízes. De modo geral, a salinidade reduziu a matéria seca das folhas, caules e raízes e aumentou o vazamento de eletrólitos nas folhas e raízes das plântulas. A aplicação de silício via solução nutritiva promoveu maiores valores em todos os parâmetros de crescimento e reduziu os danos de membrana no milho, mas isso não foi observado em feijão-de-corda. O silício atenuou os efeitos tóxicos do NaCl no crescimento das plântulas de milho, quando aplicado diretamente na solução nutritiva. Palavras-chave -Silicatos. Salinidade. Zea mays. Vigna unguiculata.Abstract -Although silicon is not considered an essential nutrient for plants, it can increase the yield potential of some crops and has been used to mitigate the toxic effects of salt stress. The aim of this work was to evaluate the effect of sodium silicate applied in two different ways in maize and cowpea seedlings subjected to salinity. Seedlings were grown in Hoagland solutions and maintained in a greenhouse. Seedlings received 1.0 mM Na 2 SiO 3 applied directly in the nutrient solutions or by foliar supply, and they were subjected to 100 mM NaCl for 15 days. We evaluated the dry weight of leaves, stems and roots, leaf area and ion leakage in leaves and roots. Salinity reduced dry weight of leaves, stems and roots and increased leaves and root ion leakage. Silicon application in the nutrient solution significantly increased all growth parameters and decreased ion leakage in maize seedlings, whereas this response was not observed in cowpea. Silicon was able to relieve the toxic effects of NaCl on growth only in maize seedlings when applied directly in the nutrient solution.

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Silício em plantas de feijão e arroz: absorção, transporte, redistribuição e tolerância ao cádmio

Cited by 12 publications

References 86 publications

Influence of Rocksil®, Silifort® and Wollastonite on Penetration and Development of Meloidogyne javanica in Poaceae and Fabaceae

Influence of Rocksil®, Silifort® and Wollastonite on Penetration and Development of Meloidogyne javanica in Poaceae and Fabaceae

Performance of Soybean Seedlings Upon Nutrient Application by Seed Coating

Aplicação de silício em milho e feijão-de-corda sob estresse salino

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