Occurrence of rice blast on and grain quality of irrigated rice fertilized with nitrogen and silicates

Oliveira, Lillian Matias de; Marchesan, Enio; David, Ricardo de; Werle, Isabel Schlegel; Aramburu, Bruno Behenck; Donato, Gabriel; Silva, Anelise Lencina da; Costa, Ivan Francisco Dressler da

doi:10.1590/s1678-3921.pab2019.v54.00295

Cited by 5 publications

(4 citation statements)

References 24 publications

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“…En condiciones de alta disponibilidad de nitrógeno, la severidad de P. oryzae aumenta (Huichuan et al, 2017). En términos prácticos, el desarrollo de la lámina foliar y el número de tallos del cultivo a una fertilización nitrogenada de 180 kg ha -1 no se observa incidencia del patógeno (de Oliveira et al, 2019).…”

Section: Daños Ocasionados Por Fusarium En Plantas De Arrozunclassified

Incremento de la patogenicidad de hongos en arroz bajo condiciones de desbalance nutricional

2022

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El presente artículo discute los hongos fitopatógenos potenciales que afectan al cultivo de arroz en condiciones de desbalance nutricional. A nivel mundial el arroz es considerado como el tercer cultivo alimentario de mayor importancia. Sin embargo, es afectado por diversos hongos fitopatógenos que ocasionan daños en hojas, tallos, panículas y granos del cultivo. La incidencia de estos hongos se debe a factores como la temperatura (25-37 ºC), humedad relativa (70-76%), humedad en el suelo, el viento y desbalance nutricional. El género Rhizoctonia causa manchas con forma elíptica de coloración marrón, pudrición de tallos y panículas, lo que reduce el 19% del rendimiento. Por otra parte, los hongos que se encuentran dentro de los géneros Alternaria, Fusarium, Curvularia y Pyricularia provocan manchas de color café y disminuyen la germinación, rendimiento, peso específico del grano (g L-1). Aunque existen investigaciones acerca de los hongos que afectan al cultivo del arroz, la asociación entre el desbalance nutricional y la incidencia de patógenos aún está por evaluarse en germoplasmas superiores a 100 variedades de arroz en condiciones óptimas y de desbalance nutricional.

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Section: Daños Ocasionados Por Fusarium En Plantas De Arrozunclassified

Incremento de la patogenicidad de hongos en arroz bajo condiciones de desbalance nutricional

2022

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“…Si fertiliser has been reported to have a beneficial role in enhancing rice yield (Agostinho et al, 2017;Cuong et al, 2017;de Oliveira et al, 2019;Emam et al, 2014;Guntzer et al, 2012;Liang et al, 2015;Siregar et al, 2021). In terms of yield components, Si improved the number of spikelets per panicle, spikelet fertility, and grain weight of rice (Ma et al, 1989;Takahashi, 1995).…”

Section: The Potential Of Si In Improving Rice Yield and Chalkinessmentioning

confidence: 99%

“…The involvement of Si affected the cell wall formation in the spikelet before heading (Inanaga et al, 2002). Research by de Oliveira et al (2019) has revealed that Si fertilisation, combined with fungicide application, can reduce the percentage of chalky kernels and vitreous grains of rice cultivars sensitive to rice blast.…”

Section: In Leafmentioning

confidence: 99%

The Potential of Silicon in Improving Rice Yield, Grain Quality, and Minimising Chalkiness: A Review

Abdullah¹,

Yaapar²,

Rafii³

et al. 2021

JTAS

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Silicon (Si) is a micronutrient that can increase the resistance of certain plants against multiple biotic or abiotic stresses. It is known that Si has a beneficial effect on plant growth, beginning in the soil, which could lead to a good crop yield. Despite its benefits, Si is not listed among the generally essential elements or nutrients for rice production in many countries such as Malaysia. This review discusses the ability to uptake Si and its benefits on rice. Environmental factors affect rice production, and among the factors, high temperature has been shown to disrupt the physiological development of rice grain, which contributes to chalkiness. Chalkiness is an undesirable trait that decreases grain’s value, milling, cooking, and eating quality. The application of Si could ameliorate rice grain quality, thus providing a valuable reference for Si fertiliser use in high-quality rice production. This review also presents an update on the potentials of Si in improving the rice yield and grain quality, including Si’s ability to minimise grain chalkiness. Therefore, it is anticipated that Si applications will increase rice yield and grain quality and help to reduce chalkiness.

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“…It keeps the leaves, stems, and culms of plants more erect which facilitate the light distribution within the canopy (Epstein, 1999). Earlier study reported the bene cial role of Si for the increment of rice yield (Agostinho et al, 2017;Cuong et al, 2017;de Oliveira et al, 2019;Li et al, 2020;Siregar et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Identifying suitable source and optimum rate of silicon in rice at Ganges Delta Coastal Zone Soils

Haque

Jahiruddin

Islam

et al. 2022

Preprint

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Purpose: Silicon established as a beneficial nutrient element especially for cereals, however it’s suitable source and optimum rate of application as a chemical fertilizer still not recommended. The purpose of the study was to identify the suitable source and optimum rate of silicon for growing rice at Ganges delta coastal zone soils. Methodology: Two similar succeeding field experiments: one at early monsoon season with T. Aus rice and another at monsoon season with T. Aman rice in 2021 were carried out using a two factor split plot design having replicated thrice. The first factor was three different sources of silicon (silicic acid, sodium meta silicate and calcium silicate) and second factor was seven rates of silicon (0, 1, 2, 5, 10, 20 and 40 kg Si ha-1). Results: Using a quadratic model the optimum rate of silicic acid, sodium meta silicate and calcium silicate were 32.2, 25.7 and 23.6 kg Si ha-1 for T. Aus rice, and 42.9, 25.8 and 24.5 kg Si ha-1 for T. Aman rice, respectively. Calcium silicate was the best source of silicon as it shows best response with smaller rates of silicon. Sodium meta silicate had the second and silicic acid had the lowest performance. Increasing Si rates progressively increases the Si content, Si uptake and chlorophyll content of rice. Conclusion: Calcium silicate with 24 kg Si ha-1 is recommended for rice at Ganges delta coastal zone soils.

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Occurrence of rice blast on and grain quality of irrigated rice fertilized with nitrogen and silicates

Cited by 5 publications

References 24 publications

Incremento de la patogenicidad de hongos en arroz bajo condiciones de desbalance nutricional

Incremento de la patogenicidad de hongos en arroz bajo condiciones de desbalance nutricional

The Potential of Silicon in Improving Rice Yield, Grain Quality, and Minimising Chalkiness: A Review

Identifying suitable source and optimum rate of silicon in rice at Ganges Delta Coastal Zone Soils

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