ABSORÇÃO E TRANSLOCAÇÃO DE SILÍCIO EM MUDAS DE &lt;i&gt;Eucalyptus camaldulensis&lt;/i&gt;

Queiroz, Dalva Luiz de; Camargo, Joelma Melissa Malherbe; Dedecek, Renato Antônio; Oliveira, E. B. de; Zanol, Keti Maria Rocha; Melido, Raul Cesar Nogueira

doi:10.5902/1980509832053

Cited by 11 publications

(7 citation statements)

References 9 publications

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“…The correlation between height and root dry matter was negative (-0.03). Studies developed with eucalyptus species (Eucalyptus camaldulensis and Eucalyptus urograndis) the application of silicon promoted an increase in the development and translocation of the nutrient in the seedlings (QUEIROZ et al, 2018;NAVAS et al, 2016). The increase in Si can be a viable technique for the production of lettuce seedlings, increasing morphological development (Gonzaga et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

“…Research on the topic is mainly developed for the production of forest and vegetable species seedlings, whose increment generated is economically viable (BRAGA et al 2009;GONZAGA et al, 2020;NAVAS et al, 2016;QUEIROZ et al, 2018), justifying the development of studies with cauliflower. In this sense, assuming that increasing dosage of silicon added to the substrate to form seedlings may favor the initial development of vegetables, the research aimed to analyze the increase in different proportions of silicon oxide to the substrate and the effects on cauliflower seedlings.…”

Section: Introductionmentioning

confidence: 99%

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Development of cauliflower seedlings due to the increase of silicon in substrate

et al. 2021

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The production of seedlings is an important step in the establishmentof the crop, with repercussions on yield, whose application of Si can improve phytosanitary and performance characteristics.The objective of the study was to analyze the increase of silicon in substrate on the development of seedlings of Brassica oleraceavar. botrytis. The experiment carried out in randomized blocks, with five amounts of silicon (0, 25, 50, 75 and 100 g kg-1of substrate) and four replications. Silicon oxide (98% SiO2) used, mixed with the substrate with subsequent filling of the polyethylene trays (128 cells) and seeding. The trays kept in a greenhouse. At 30 days after sowing, the height of seedlings, number of leaves, fresh weight of leaves and stem, dry weight of leaves, stem and root evaluated. The data subjected to analysis of variance by the F test and regression analysis. Of the variables analyzed, only the dry root mass did not show a significant difference. Quadratic models can represent the variation in components. Seedling height increased with the increase of silicon up to thedoseof 75 g kg-1. Other variables showed increases up to a dose of 50 g kg-1. The increase of silicon in the substrate was efficient in the development of seedlings of Brassica oleraceavar. botrytisin an amount of up to 50 g kg-1of substrate.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of cauliflower seedlings due to the increase of silicon in substrate

et al. 2021

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“…According to Ma and Yamaji (2015) and Queiroz et al (2018), eucalyptus is a non-Si accumulating species; for this reason, we chose to use the commercial fertilizer Sifol Powder as a source of Si in the presente study. Sifol Powder is an extremely pure reactive source of nanossílica that is more effective when applied via the roots than by foliar spray (Suriyaprabha et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Effects of foliar and root silicon application on mitigating water deficit stress in young Eucalyptus urophylla plants

Barbosa¹,

Cairo

Bonfim³

et al. 2023

Preprint

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Background and Aims Water restriction significantly affects the growth and survival of young plants following transplantation. Although silicon (Si) is not typically considered essential for plants, it can help mitigate abiotic stresses. We hypothesized that Si application in plants, depending on how it is applied, can improve the tolerance to water restriction. The objective was to investigate how applying Si to the leaves and roots of young Eucalyptus urophylla plants can mitigate water restriction effects. Methods A greenhouse experiment was conducted with one factor consisting of three Si application methods (via root substrate, foliar spray, and a combination of both) and a control group with no Si; the other factor involved well-watered and water-deficit irrigation regimes, based on 90% and 30% pot capacity, respectively. Results Silicon application improved the plant’s tolerance to water restriction by maintaining stable cell turgor and increasing intrinsic water use efficiency. Silicon also helped to reduce stomatal conductance and water losses through transpiration, which prevented a decline in CO2 assimilation and promoted osmoregulation. It also prevented a decrease in chlorophyll content and attenuated oxidative stress, by increasing superoxide dismutase and guaiacol peroxidase activity, which contributed to preventing an increase in lipid peroxidation and electrolyte leakage. The effectiveness of Si supply was higher when applied through the roots or a combination of roots and leaves compared to foliar spray alone. Conclusion These findings suggest that Si application can be a useful strategy for improving plant tolerance to water restriction, particularly when applied through the roots.

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“…Duarte ), allowing the authors to classify the studied plants as intermediate in the accumulation of this nutrient. Queiroz et al [36] have concluded that Eucalyptus camaldulensis is capable of absorbing and translocating Si and that these processes are higher at 60 days after application of different sources of this nutrient. These same authors explain that foliar application is more efficient than soil application and, as in the present study, eucalyptus cannot be classified as a Si accumulator plant.…”

Section: Discussionmentioning

confidence: 99%

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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ABSORÇÃO E TRANSLOCAÇÃO DE SILÍCIO EM MUDAS DE <i>Eucalyptus camaldulensis</i>

Cited by 11 publications

References 9 publications

Development of cauliflower seedlings due to the increase of silicon in substrate

Development of cauliflower seedlings due to the increase of silicon in substrate

Effects of foliar and root silicon application on mitigating water deficit stress in young Eucalyptus urophylla plants

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

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