Effect of silicon on seed germination and the physiological characteristics of<i>Glycyrrhizauralensis</i>under different levels of salinity

Zhang, X. H.; Zhou, Daowei; Cui, Jiajia; L., H.; Lang, Duoyong; Wu, Xibao; Wang, Z. S.; Qiu, Hongyan; LI, Mengxia

doi:10.1080/14620316.2015.11513207

Cited by 40 publications

(20 citation statements)

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“…Although Si is not considered an essential nutrient for most plants, a lot of works have demonstrated the beneficial effects of Si in reduction of damages caused by stress-inducing agents (Imtiaz et al 2016;Alsaeedi et al 2017). Silicon plays a role in alleviating the negative effects of salt stress by improving germination performance and its ability to withstand adverse conditions, since that Si may be involved in silicon-mediated plant tolerance (Zang et al 2015;Maghsoudi and Emam 2016). Silicon is a known precursor for lignin synthesis, and may play therefore an essential role in seed coat resistance (Toledo et al 2011).…”

Section: Resultsmentioning

confidence: 99%

Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses

et al. 2020

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Seed germination and seedling growth are the stages most sensitive to salt stress, which can induce ion-specific effects and oxidative stress. Although silicon (Si) has been known to improve plant defense systems against stressful-conditions, little is known about seed priming with Si and mechanisms of Si-mediated alleviation of salt stress in seedlings. To further the modulation of salt-stress responses and their relation with Si, seed priming with calcium silicate (0, 0.05 and 0.1 mM Ca 2 SiO 4) was used in lettuce seeds to improve seed germination and tolerance on subsequent salt-stress exposure (0 and 50 mM NaCl). The effect of Si-priming was assessed on germination, germination rate index and mean germination time and survival of seedlings in salt-stressful conditions supported by biochemical approach involving antioxidant responses. Overall results indicated that Si plays a role in alleviating the negative effects of salt stress by improving germination performance and displayed increased SOD, CAT and GR activities and reduced malondialdehyde and H 2 O 2 contents. Thus, our findings demonstrate that seed-priming with Si is an efficient management technique that can be used to alleviate deleterious effects of salt-stressful on germination of lettuce seeds and enhance salt tolerance of seedlings due the increased activity of ROS-scavenging enzymes.

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Section: Resultsmentioning

confidence: 99%

Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses

et al. 2020

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“…Ressalta-se que os resultados encontrados nesta pesquisa são ratificados por Meneses et al (2011), trabalhando com cultivares de algodoeiro sob níveis de estresse hídrico. Lima et al (2011) salientam que o silício possui efeito benéfico sobre o organismo vegetal, notadamente por atuar na otimização dos processos bioquímicos e fisiológicos, como relatado por Shi et al (2014), Zhang et al (2015) e Ahmed et al (2016), utilizando Si para tratamento de sementes submetidas a estresses abióticos, verificaram efeito positivo desse micronutriente sobre estes aspectos, inferindo melhoria no crescimento das culturas em resposta ao tratamento com Si. Nesse sentido, os aumentos das TCRA e TCRR mensurados na cultivar BRS Safira podem estar atrelados ao efeito indireto do silício sobre as características fisiológicas do algodoeiro, tendo essas características refletido nas taxas de crescimento das plântulas.…”

Section: Germination Percentage (Pge) Of Brs Safira (A) Emergency Spunclassified

“…Acrescente-se que pode ter ocorrido efeito negativo no crescimento, em decorrência do aumento do índice salino contido na fonte de silício utilizada. De fato, doses muito elevadas de Si podem inibir a germinação e reduzir o IVE e o vigor de sementes (Zhang et al, 2015).…”

Section: Germination Percentage (Pge) Of Brs Safira (A) Emergency Spunclassified

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Atributos qualitativos de sementes de algodoeiro hidrocondicionadas em soluções de silício

Ferraz¹,

Barbosa²,

Magalhães³

et al. 2017

Científica

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ResumoO algodão é uma cultura de importância social, ambiental e econômica no mundo. Objetivou-se com este trabalho avaliar atributos qualitativos de sementes de algodoeiro hidrocondicionadas em soluções com diferentes concentrações de silício. O experimento foi realizado no Laboratório de Fisiologia Vegetal da Embrapa Algodão, em Campina Grande-PB, Brasil. O delineamento experimental utilizado foi o inteiramente casualizado, em esquema fatorial 5x3, sendo cinco concentrações de silício (0; 50; 100; 150 e 200 mg L -1 de Si), três cultivares de algodoeiro (BRS Topázio, BRS Safira e BRS Rubi) e quatro repetições. As avaliações consistiram na quantificação de variáveis de germinação, vigor, emergência e índices fisiológicos. O hidrocondicionamento de sementes em solução com concentração de 200 mg L -1 de silício promoveu reduções na germinação, no vigor, na emergência e nos índices fisiológicos. Maior taxa de crescimento relativo da parte aérea das raízes da cultivar BRS Safira foi obtida em sementes hidrocondicionadas em solução com 100 mg L -1 de silício.Palavras-chave adicionais: crescimento; fitomassa; germinação; Gossypium hirsutum L.; vigor. AbstractCotton is a crop of social, environmental and economic world. The objective of this study was to evaluate qualitative attributes of cotton seeds primed in solutions with different concentrations of silicon. The experiment was conducted in the Laboratory of Plant Physiology, in Embrapa Algodão, Campina Grande-PB, Brazil. The experimental design was the completely randomized as a 5x3 factorial with five silicon concentrations (0, 50, 100, 150 and 200 mg L -1 ), three cotton cultivars (BRS Topázio, BRS Safira and BRS Rubi) and four replications. Evaluations consisted of quantifying germination, vigor, emergence and physiological indices. Hydropriming seeds in solution with a concentration of 200 mg L -1 silicon promoted reductions in germination, vigor, emergence and physiological indices. Greater relative growth rate of BRS Safira shoots is obtained from seeds primed in solution with 100 mg L -1 silicon.

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“…Si is generally considered as non-essential for plant growth and development (Zhang et al 2017), and its uptake and transportation processes of legumes are considered as rejective (Liang et al 2005;Ma et al 2001). However, recent studies on legumes show that Si was beneficial in promoting plant growth and alleviating abiotic stresses such as salinity (Lee et al 2010;Murillo-Amador et al 2007;Zhou et al 2014), drought (Hamayun et al 2010;Kurdali et al 2013) and metal toxicity (Baylis et al 1994;Sarwar et al 2010;Majumdar and Prakash 2020). Few studies on soybean (Liang et al 2015;Shwethakumari and Prakash 2018) and cowpea (Mali and Aery 2009) evidenced positive effect of Si on growth, yield and quality of legumes.…”

Section: Introductionmentioning

confidence: 99%

Slag-Based Gypsum as a Source of Sulphur, Calcium and Silicon and Its Effect on Soil Fertility and Yield and Quality of Groundnut in Southern India

Laxmanarayanan

Prakash

Dhumgond

et al. 2020

J Soil Sci Plant Nutr

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Slag-based gypsum (SBG) is a unique synthetic gypsum which is alkaline in nature, besides calcium (Ca) and sulphur (S); it contains appreciable amounts of iron (Fe), silicon (Si), phosphorus (P) and zinc (Zn). In this study, we evaluated the efficacy of SBG as a source of S, Ca and Si for groundnut in comparison with natural gypsum (NG). The effect of different levels and time of application of SBG on soil fertility and yield and quality of groundnut were also studied. Field experiments were conducted with five treatments which includes two levels of SBG (500 and 625 kg ha −1) applied as basal and basal + split and one level of NG (500 kg ha −1) applied as basal. Basal and basal + split applications of SBG significantly increased the pod and haulm yield of groundnut, pH, electrical conductivity and plant-available nutrients in post-harvest soil. However, N:S ratio, kernel and protein yield and oil content did not vary with SBG application. Applied S, Ca and Si as SBG and their uptake were positively correlated with plant-available S, Ca and Si and pod, oil and protein yield of groundnut, respectively. Basal and basal + split applications of SBG resulted in a similar effect on soil fertility and yield and quality of groundnut. Findings from this study show that SBG can be a potential alternative for NG as a source of S, Ca and Si for groundnut production. Among the treatments, basal and basal + split applications of 625 kg SBG ha −1 substantially improved the fertility of soils and yield and quality of groundnut.

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Effect of silicon on seed germination and the physiological characteristics ofGlycyrrhizauralensisunder different levels of salinity

Cited by 40 publications

References 0 publications

Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses

Salt stress alleviation by seed priming with silicon in lettuce seedlings: an approach based on enhancing antioxidant responses

Atributos qualitativos de sementes de algodoeiro hidrocondicionadas em soluções de silício

Slag-Based Gypsum as a Source of Sulphur, Calcium and Silicon and Its Effect on Soil Fertility and Yield and Quality of Groundnut in Southern India

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