The economic potential of silicon for integrated management and sustainable rice production

Álvarez, José; Datnoff, Lawrence E.

doi:10.1016/s0261-2194(00)00051-x

Cited by 86 publications

(56 citation statements)

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“…In the study, the growth of Haloxylon ammodendron was also promoted by 0.05, 0.1 and 0.2 g kg −1 H 2 SiO 3 , and optimal growth occurred when plants were grown in 0.2 g kg −1 H 2 SiO 3 , while growth was inhibited when plants were exposed to 0.4 g kg −1 H 2 SiO 3 (Tables 2 and 3). These findings correspond with the results of other authors who have observed positive effects of Si on the growth of several species (Alvarez and Datnoff 2001;Guo et al 2006). Moreover, we may conclude, in agreement with Epstein (1999), that the cultivation of Si-accumulating plants in conventional nutrient solutions without Si is not optimal, because such plants are structurally weaker than Sireplete plants.…”

Section: Positive Effect Of Si On the Growth And Drought Resistance Osupporting

confidence: 93%

Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Kang

Zhao

et al. 2014

Soil Science and Plant Nutrition

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Haloxylon ammodendron (C. A. Mey), a C 4 perennial woody species of the desert areas of northwest China, is a succulent xerophyte that has excellent adaptability to adverse arid environments. Our previous investigations showed that sodium (Na + ) has a positive effect on the growth and drought resistance of Haloxylon ammodendron under drought conditions, which was closely related to high Na + accumulation in photosynthesizing stems (PS). In this study, we further investigated the effect of Na (as sodium chloride, NaCl), Si (as silicic acid, H 2 SiO 3 ) and Na and Si coexistence (NaCl + H 2 SiO 3 ) on the growth and drought resistance of Haloxylon ammodendron under water deficit (30% of field water capacity) in a pot culture experiment. The results indicate that 0.3 g kg −1 NaCl, 0.2 g kgH 2 SiO 3 and Na and Si coexistence (0.3 g kg −1 NaCl + 0.1 g kg −1 H 2 SiO 3 ) could effectively mitigate deleterious impacts of drought stress on the growth of Haloxylon ammodendron, and the coexistence of 0.3 g kg −1 NaCl + 0.1 g kg −1 H 2 SiO 3 could more effectively mitigate deleterious impacts of drought stress on the growth of Haloxylon ammodendron than the 0.3 g kg −1 NaCl or 0.2 g kg −1 H 2 SiO 3 . The coexistence of 0.3 g kg −1 NaCl + 0.1 g kgH 2 SiO 3 encourages plant height, crown diameter, biomass and main root length and, concomitantly, accumulates a higher concentration of Na + and Si (SiO 2 ) than Potassium (K + ) to adapt to arid environments. In comparison with the 0.3 g kg −1 NaCl or 0.2 g kg −1 H 2 SiO 3 , a significant increase in total Na + concentrations by 18.4% and 135.3%, and a significant increase in total Si (SiO 2 ) concentrations by 92.6% and 15.6% (compared with 0.3 g kg −1 NaCl or 0.1 g kg −1 H 2 SiO 3 ) were observed in plants grown in the presence of the coexistence of 0.3 g kg −1 NaCl + 0.1 g kgH 2 SiO 3 . These findings suggest that the positive roles of Na and Si coexistence in the drought resistance of Haloxylon ammodendron might be due to the ability of the plants to accumulate a high concentration of Na + as an important physiological osmoregulator, while still absorbing and accumulating a large amount of Si (SiO 2 ) to cope with drought stress. However, the physiological mechanisms underlying how Si, Na, and Si and Na coexistence promote growth and enhance drought resistance of Haloxylon ammodendron need further research.

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Section: Positive Effect Of Si On the Growth And Drought Resistance Osupporting

confidence: 93%

Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Kang

Zhao

et al. 2014

Soil Science and Plant Nutrition

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“…However, various studies have demonstrated that Si application increased plant growth significantly (Alvarez and Datnoff, 2001). Beneficial effects of Si are more prominent when plants were subjected to multiple stresses including biotic and abiotic stresses (Aziz et al, 2002;Rodrigues et al, 2003;Ma, 2004;Tahir et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of silicon application on wheat (Triticum aestivum L.) growth under water deficiency stress

Ahmad

Rahmatullah

Aziz

et al. 2007

Emir. J. Food Agric

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Abstract:Silicon is known to ameliorate the deleterious effects of drought on plant growth. We evaluated growth of wheat (CV. Inqlab-91) on different soil water regimes as affected by Si application. Silicon was added in soil @ 50 mg/kg and 150 mg/kg of soil. Plants were grown with three levels of soil water contents viz 50%, 75% and 100% of field capacity. Water deficiency in soil significantly reduced shoot biomass and spike weight of wheat plants. Silicon application significantly (p<0.01) increased plant biomass, plant height and spike weight at all levels of water contents. Poor growth of plants in water deficient conditions was significantly improved with Si application. Silicon application significantly increased Si concentration and uptake in wheat plants grown at all three soil water levels. Mechanisms underlying growth improvement under drought are still unclear and must be explored.Keywords: Drought, silicon, wheat. ‫ﺍﻟﻘﻤﺢ‬ ‫ﻋﻠﻰ‬ ‫ﺍﻟﺴﻴﻠﻜﻭﻥ‬ ‫ﺇﻀﺎﻓﺔ‬ ‫ﺘﺄﺜﻴﺭ‬

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“…Isto se justifica pelo fato do uso da combinação fornecer uma resposta mais rápida e mais eficiente no controle da lagarta-do-cartucho do milho, pois segundo Alvarez & Datnoff (2001), o silício tem a capacidade de reduzir consideravelmente várias pragas, levando a uma redução da aplicação de inseticida. Ciênc.…”

Section: Teste De Preferência Sem Chance De Escolha Em Folhas Destacaunclassified

Interação silício com inseticida regulador de crescimento no manejo da lagarta-do-cartucho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho

2005

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RESUMOCom o objetivo de avaliar o efeito do silício aplicado via solo e foliar, bem como sua interação com o inseticida regulador de crescimento (lufenuron) no manejo de Spodoptera frugiperda em plantas de milho, foi realizado um ensaio em casa-de-vegetação e em laboratório, constando de nove tratamentos com cinco repetições. No laboratório do Departamento de Entomologia da Universidade Federal de Lavras-MG, avaliou-se a preferência das lagartas por folhas destacadas de plantas de milho provenientes dos diferentes tratamentos, bem como o consumo e a mortalidade dessa praga. Em casa-de-vegetação, foram avaliadas a intensidade das injúrias provocadas pelas lagartas nas folhas, utilizando uma escala visual de danos proposta por Davis & Williams (1989), bem como o número e a biomassa das lagartas vivas. Pelos resultados pode-se concluir que os tratamentos não afetaram a preferência da lagartado-cartucho em teste de livre escolha. A interação silício e lufenuron no manejo de S. frugiperda é positiva em relação ao inseticida isolado, provavelmente devido a resistência mecânica conferida pelo silício as folhas.Termos para indexação: Insecta, resistência induzida e lufenuron. ABSTRACTThe objective of this work was to evaluate the effect of sprayed silicon via soil and leaf as well as its interaction with growth regulating insecticide (lufenuron) in the management of Spodoptera frugiperda on corn plants. The trials were carried out in greenhouse and laboratory conditions and consisting of nine treatments with five replicates. In the laboratory, the preference of fall armyworms on detached leaves of corn plants from different treatments was evaluated, as well as the consumption and mortality of this pest. In the greenhouse, the damage caused by the insect on the leaves were evaluated by using a visual scale of injuries proposed by Davis & Williams (1989). In the greenhouse on the control treatment, both the number and weight of the larval were also determined. According to the results, silicon, the insecticide lufenuron and the interaction between silicon and lufenuron did not affect the preference of fall armyworm in a free choice test. The silicon x lufenuron interaction is positive in the management of S. frugiperda when compared to the insecticide only, probably due to a mechanical resistance by the silicon on the leaves surface. Index terms: INTRODUÇÃOO milho (Zea mays L.) é um dos cereais mais importantes do mundo por constituir a base da alimentação humana e animal (SILVA, 1995). A produção de milho tende a se expandir fortemente para suprir a demanda gerada pelo crescimento populacional e, principalmente, pelo consumo de fontes de energia renováveis, estabelecendo, assim, a era da agricultura energética (SILVA, 2004). Na condução da cultura muitos problemas são observados, podendo ser relacionados à precária situação de renda dos agricultores, à baixa disponibilidade de capital para a agricultura, ao baixo nível de tecnologia adotado e à incidência de pragas, que atacam a planta de milho praticamente em todas as ...

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The economic potential of silicon for integrated management and sustainable rice production

Cited by 86 publications

References 10 publications

Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Effect of silicon application on wheat (Triticum aestivum L.) growth under water deficiency stress

Interação silício com inseticida regulador de crescimento no manejo da lagarta-do-cartucho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho

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The economic potential of silicon for integrated management and sustainable rice production

Cited by 86 publications

References 10 publications

Sodium (Na+) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Sodium (Na+) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Effect of silicon application on wheat (Triticum aestivum L.) growth under water deficiency stress

Interação silício com inseticida regulador de crescimento no manejo da lagarta-do-cartucho Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) em milho

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Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron

Sodium (Na⁺) and silicon (Si) coexistence promotes growth and enhances drought resistance of the succulent xerophyteHaloxylon ammodendron