Effect of silicon sources on rice diseases and yield in the State of Tocantins, Brazil

Santos, Gil Rodrigues dos; Neto, Manoel Delintro de Castro; Ramos, Leandro Nogueira; Sarmento, Renato Almeida; Korndörfer, Gaspar Henrique; Ignácio, Maíra

doi:10.4025/actasciagron.v33i3.6573

Cited by 14 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, the optimal rate of Si (10 g per pot) could reduce 24% of panicle blast severity. This result is in line with Santos et al (2011) that reported panicle blast linearly decreased with the increase of calcium silicate. The reduction of panicle blast disease severity could be due to a thick cuticle layer of 2.5 µm Si serves as a barrier (Yoshida 1981), and this cuticle-Si double-layer prevents penetration by fungi, which helps to prevent infection process (Ma and Yamaji 2008).…”

Section: Discussionsupporting

confidence: 92%

Increasing Yield of Susceptible and Resistant Rice Blast Cultivars Using Silicon Fertilization

Esa

Puteh

Mat

et al. 2020

Indones. J. Agric. Sci.

View full text Add to dashboard Cite

<p>Rice blast is one of the most critical limiting factors for rice plant growth performance. Silicon has been shown to have positive effects in controlling several plant diseases. The study aimed to investigate the impact of silicon levels on rice yield, silicon content, and panicle blast in rice plants. The study was set up as a 2 x 5 factorial experiment with three replications and arranged in a randomized complete block design. The first factors were two rice cultivars, MARDI Siraj 297 (resistant) and MR 263 (susceptible). The second factors were five levels of calcium silicate (0 g, 4 g, 8 g, 12 g, and 16 g) applied to 40 kg soil per pot. The standard fertilizers, i.e., N, P2 O5, and K2 O, were applied four times at the recommended dosage. High virulent of Pyricularia oryzae conidia (4 x 104 conidia ml-1) was sprayed using a hand sprayer (30 ml pot-1) at the time of fully completed panicle development (65 days after planting). Observed parameters were plant growth (height and culm length), yields (spikelets per panicle, grain filling percentage, and harvest index), panicle blast severity, and silica content in leaf, stem, and panicle. The results showed that silicon application reduced panicle blast severity, leading to higher yield per plant. The increase of the rice yield was a result of a significant increae in panicle per m2 , spikelet per m2 , and percentage of filled grain. Panicle blast greatly affected the performance of spikelet number per m2 , percentage of filled grain, grain weight, and yield per plant for the susceptible cultivar. Application of calcium silicate 10 g 40 kg-1 soil per pot at panicle initiation is recommended to reduce panicle blast severity hereby improve grain yield.</p>

show abstract

Section: Discussionsupporting

confidence: 92%

Increasing Yield of Susceptible and Resistant Rice Blast Cultivars Using Silicon Fertilization

Esa

Puteh

Mat

et al. 2020

Indones. J. Agric. Sci.

View full text Add to dashboard Cite

show abstract

“…O silício, dentre os minerais utilizados para o manejo sanitário das plantas cultivadas, pode reduzir a severidade de doenças em algumas culturas (EPSTEIN, 1999;SANTOS et al, 2011). Foram registradas interações significativas entre as variedades de cafeeiro infectadas por Cercospora coffeicola e a presença de silício na redução da intensidade da infecção fúngica devido a ação fungistática proporcionada pelo silício (POZZA et al, 2004).…”

Section: Introductionunclassified

Severidade de antracnose em folhas de sorgo submetido a doses crescentes de silício

Santos¹,

Rodrigues²,

Bonifácio³

et al. 2014

Rev. Ciênc. Agron.

View full text Add to dashboard Cite

RESUMO -A antracnose foliar é causada pelo fungo Colletotrichum sublineolum Hann. Kabát et Bub. (sin. C. graminicola (Ces.) G.W. Wils.) em plantas de sorgo podendo reduzir a produtividade de grãos e forragem, e o manejo adequado da nutrição mineral desta planta pode se apresentar como um mecanismo de controle sobre a antracnose. Dentre os minerais utilizados para o manejo de doenças, o silício destaca-se por reduzir a severidade das doenças em várias culturas. Diante do exposto, este trabalho teve por objetivo avaliar a severidade da antracnose em diferentes genótipos de sorgo suplementados com doses crescentes de silício. Para tal, realizaram-se experimentos em condições de casa de vegetação e de campo onde os genótipos de sorgo DOW 1F305 e A9735R foram suplementados com doses crescentes de silício (0; 500; 1.000; 1.500; 2.000; e 4.000 kg ha -1 ) e avaliados quanto à severidade da antracnose. Avaliou-se a severidade da doença por meio de uma escala de notas e, em seguida, amostras foram coletadas para determinação da concentração de silício nas folhas. Após a análise dos resultados, concluiu-se que houve redução na severidade da antracnose em resposta a adubação com silício para ambos os genótipos avaliados. Apesar do genótipo de sorgo DOW 1F305 acumular menores teores de silício em suas folhas, este genótipo foi mais resistente ao ataque da antracnose foliar. Palavras-chave: Colletotrichum sublineolum. Sorghum bicolor. Silicato de cálcio e magnésio.ABSTRACT -Anthracnose in the leaves of sorghum plants is caused by the fungus Colletotrichum sublineolum Hann. Kabát et Bub. (syn. C. graminicola (Ces.) GW Wils.), and is responsible for reducing the yield of grain and forage. The proper management of the mineral nutrition of the plant may be a mechanism for the control of anthracnose. Among the minerals used in disease management, silicon stands out for reducing the severity of the disease in various crops. Given the above, this study aimed to assess the severity of anthracnose in different sorghum genotypes when supplemented with increasing levels of silicon. To this end, experiments were carried out under both greenhouse and field conditions, where the sorghum genotypes DOW 1F305 and A9735R were supplemented with increasing levels of silicon (0, 500, 1000, 1500, 2000, and 4000 kg ha -1 ) and assessed for the severity of anthracnose. We evaluated the severity of the disease with a rating scale and then samples were collected for determination of the concentration of silicon in the leaves. After analyzing the results, it was concluded that there was a reduction in the severity of anthracnose in response to fertilization with silicon in both of the evaluated genotypes. Although genotype DOW 1F305 accumulated lower silicon levels in the leaves, it was more resistant to foliar anthracnose.

show abstract

“…In addition, silicon acts as an inducer of antifungal compounds (Rémus‐Borel et al ., 2005) and the expression of pathogenesis‐induced host defence responses (Datnoff et al ., 2006). Efficacy of silicate treatment was also found to be efficient against leaf or panicle blast of rice (Datnoff et al ., 2007; Santos et al ., 2011). The effect of silicates on disease resistance has also been reported against other diseases including sheath blight of rice ( Rhizoctonia solani ; Peters et al ., 2001) and brown spot of rice ( Bipolaris oryzae ; Zanão Júnior et al ., 2009).…”

Section: Management Of Wheat Blastmentioning

confidence: 99%

A review on South Asian wheat blast: The present status and future perspective

Yesmin

Jenny²,

Abdullah

et al. 2020

Plant Pathology

View full text Add to dashboard Cite

The outbreak of wheat blast (Pyricularia oryzae, syn. Magnaporthe oryzae) in Bangladesh and India in recent times is a cause of grave concern for future wheat production in South Asian countries. In this review, we focus on the origin and pathology of P. oryzae and its current status and impact on trade of wheat in South Asia. We also consider future directions for efficient detection, monitoring, forecasting, and managing this destructive disease. Proper detection and monitoring are essential for imposing disease management strategies. Cutting‐edge tools such as geospatial modelling and remote sensing technologies based on field observation will be pivotal to efficiently contain and manage the disease. Strong quarantine regulations too are critical in preventing the pathogen movement and are also discussed within. Complementary approaches, such as the induction of systemic resistance by applying plant growth‐promoting rhizobacteria or probiotic bacteria, are also considered here. This review provides a comprehensive summary on the status of wheat blast in South‐East Asia and will provide an important resource for wheat blast research in the affected areas.

show abstract

Effect of silicon sources on rice diseases and yield in the State of Tocantins, Brazil

Cited by 14 publications

References 15 publications

Increasing Yield of Susceptible and Resistant Rice Blast Cultivars Using Silicon Fertilization

Increasing Yield of Susceptible and Resistant Rice Blast Cultivars Using Silicon Fertilization

Severidade de antracnose em folhas de sorgo submetido a doses crescentes de silício

A review on South Asian wheat blast: The present status and future perspective

Contact Info

Product

Resources

About