&lt;b&gt;Gherkin cultivation in saline medium using seeds treated with a biostimulant

Neta, Maria Lilia de Souza; Oliveira, Francisco de Assis de; Torres, Salvador Barros; Souza, Antônia Adailha Torres; Silva, Dennis Darkyan Almeida da; Santos, S. T.

doi:10.4025/actasciagron.v40i1.35216

Cited by 10 publications

(10 citation statements)

References 18 publications

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“…However, in plants irrigated with high-salinity water, a quadratic behavior was observed, and highest dry matter accumulation (23.31 mg) was found at phytohormone concentration of 27.6 µM L -1 ( Figure 2B). Cunha et al (2016) andSouza Neta et al (2018) observed that the use of the biostimulant Stimulate®, composed of a mixture of substances [0.005% of indolebutyric acid (auxin), 0.009% of kinetin (cytokinin) and 0.005% of gibberellic acid (gibberellin)], was not efficient at mitigating the effect of salinity on sweet corn and gherkin, and found benefits only in plants grown in the absence of salt stress. The opposite was observed in the present study, which may be related to the low concentration of phytohormones in the biostimulant evaluated by these authors.…”

Section: Resultsmentioning

confidence: 99%

Exogenous application of phytohormones mitigates the effect of salt stress on Carica papaya plants

Sá

Brito

Silva

et al. 2020

Rev. bras. eng. agríc. ambient.

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The salinity has complex effects on the physiological, nutritional and hormonal interactions of plants. This study aimed to evaluate the mitigating action of exogenous application of different types and concentrations of phytohormones on Carica papaya under salt stress. The experiment was conducted in greenhouse, using a randomized block design with treatments formed from a 2 x 3 x 5 factorial scheme, relative to two concentrations of salts in the irrigation water (0.6 and 2.4 dS m-1), three types of phytohormones [Auxin = indole-3-acetic acid; Cytokinin = CPPU (N-(2-chloro-pyridyl)-N-phenylurea) and Gibberellin = gibberellic acid(AG3)], and five concentrations of the phytohormone (0, 12.5, 25.0, 37.5 and 50.0 µM L-1), with three repetitions, totaling 90 plots, and the experimental unit consisted of six plants. C. papaya cv. ‘Sunrise Solo’ was grown on polyethylene trays of 162 cells, with capacity for 50 mL. The plants were evaluated for survival percentage and phytomass accumulation until 25 days after sowing. Increase in irrigation water salinity has deleterious effects on C. papaya plants regardless of the application of phytohormones. Exogenous application of gibberellin has a positive effect in mitigating salt stress on C. papaya plants, greater than the effects of auxins and cytokinins. Exogenous application of gibberellin and auxin at concentration of 37.5 µM L-1 mitigates the effects of salinity on C. papaya plants. Exogenous application of cytokinin at concentrations of 12.5 to 50.0 µM L-1 is not viable for C. papaya plants.

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Section: Resultsmentioning

confidence: 99%

Exogenous application of phytohormones mitigates the effect of salt stress on Carica papaya plants

Sá

Brito

Silva

et al. 2020

Rev. bras. eng. agríc. ambient.

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“…Humic acid-based biostimulants had been reported against protective role under salinity [127,128]. Humic acid biostimulants not only improved the soil texture but also improves its physical and chemical characteristics [129,130]. They also have the capacity to adjust osmotic potential by maintaining cell turgor and water absorption under saline conditions [131].…”

Section: Salinitymentioning

confidence: 99%

Biostimulant-Treated Seedlings under Sustainable Agriculture: A Global Perspective Facing Climate Change

Malik¹,

Mor²,

Tokas³

et al. 2020

Agronomy

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The primary objectives of modern agriculture includes the environmental sustainability, low production costs, improved plants’ resilience to various biotic and abiotic stresses, and high sowing seed value. Delayed and inconsistent field emergence poses a significant threat in the production of agri-crop, especially during drought and adverse weather conditions. To open new routes of nutrients’ acquisition and revolutionizing the adapted solutions, stewardship plans will be needed to address these questions. One approach is the identification of plant based bioactive molecules capable of altering plant metabolism pathways which may enhance plant performance in a brief period of time and in a cost-effective manner. A biostimulant is a plant material, microorganism, or any other organic compound that not only improves the nutritional aspects, vitality, general health but also enhances the seed quality performance. They may be effectively utilized in both horticultural and cereal crops. The biologically active substances in biostimulant biopreparations are protein hydrolysates (PHs), seaweed extracts, fulvic acids, humic acids, nitrogenous compounds, beneficial bacterial, and fungal agents. In this review, the state of the art and future prospects for biostimulant seedlings are reported and discussed. Biostimulants have been gaining interest as they stimulate crop physiology and biochemistry such as the ratio of leaf photosynthetic pigments (carotenoids and chlorophyll), enhanced antioxidant potential, tremendous root growth, improved nutrient use efficiency (NUE), and reduced fertilizers consumption. Thus, all these properties make the biostimulants fit for internal market operations. Furthermore, a special consideration has been given to the application of biostimulants in intensive agricultural systems that minimize the fertilizers’ usage without affecting quality and yield along with the limits imposed by European Union (EU) regulations.

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“…The commercial biostimulant Stimulate® presents 0.009% cytokinin, 0.005% gibberellin, and 0.005% auxin, and it has been used in several studies regarding saline stress in plants [42][43][44][45][46][47]. However, the results are not conclusive about its effect on improving plant resistance under salt stress.…”

Section: Biostimulants and Salt Stress In Plantsmentioning

confidence: 99%

Biostimulants and Their Role in Improving Plant Growth under Abiotic Stresses

Vasconcelos¹,

Chaves²

2020

Biostimulants in Plant Science

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Biostimulants are products that reduce the need for fertilizers and increase plant growth, resistance to water and abiotic stresses. In small concentrations, these substances are efficient, favoring the good performance of the plant's vital processes, and allowing high yields and good quality products. In addition, biostimulants applied to plants enhance nutrition efficiency, abiotic stress tolerance and/or plant quality traits, regardless of its nutrient contents. Several researches have been developed in order to evaluate the biostimulants in improving plant development subjected to stresses, saline environment, and development of seedlings, among others. Furthermore, various raw materials have been used in biostimulant compositions, such as humic acids, hormones, algae extracts, and plant growth-promoting bacteria. In this sense, this chapter aims to approach the use of biostimulants in plant growth according to the raw material used in their compositions as well as their effects on plants subjected to abiotic stresses.

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<b>Gherkin cultivation in saline medium using seeds treated with a biostimulant

Cited by 10 publications

References 18 publications

Exogenous application of phytohormones mitigates the effect of salt stress on Carica papaya plants

Exogenous application of phytohormones mitigates the effect of salt stress on Carica papaya plants

Biostimulant-Treated Seedlings under Sustainable Agriculture: A Global Perspective Facing Climate Change

Biostimulants and Their Role in Improving Plant Growth under Abiotic Stresses

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