Growth and Gas Exchanges of Cotton Under Water Salinity and Nitrogen-Potassium Combination

Dias, Adaan Sudário; Gheyi, Hans Raj; Soares, Lauriane Almeida dos Anjos; Fernandes, Pedro Dantas

doi:10.1590/1983-21252020v33n219rc

Cited by 16 publications

(17 citation statements)

References 26 publications

(28 reference statements)

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“…17 n. 3, e2816 -Taubaté 2022 plants irrigated with ECw of 0.6 dS m -1 . Stomatal closure with the increase in ECw is a response to the osmotic stress caused by excess salts, being an important strategy against dehydration, maintaining a high cell water potential (Dias et al, 2020). Reduction in stomatal conductance of plants due to the increase in ECw was also observed by Dias et al (2019), in a study with West Indian cherry cv.…”

Section: Resultsmentioning

confidence: 87%

“…Reduction in growth of plant height and stem diameter is the result of changes in soil water potential caused by excess salts, which restricts water absorption, decreasing turgor pressure and cell activity of plants, by inhibiting cell expansion and elongation (Lopes et al, 2019). Reduction in leaf area (Figure 4C) can be considered a mechanism to protect plants from salt stress, since it leads to a decrease in the absorption of water and toxic ions that would result in damage to essential biochemical processes (Dias et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

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Gas exchange, growth and quality of guava seedlings under salt stress and salicylic acid

Xavier¹,

Lima²,

Gheyi³

et al. 2022

Rev. ambiente água

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Guava is a popular Brazilian fruit that is widely produced in Northeastern Brazil, a region with water sources that commonly have high concentrations of salts. Thus, searching for techniques that allow the management of these waters is extremely important for the expansion of irrigated agriculture. In this context, salicylic acid is a phytohormone that can contribute to reducing the effects of salt stress on plants. Given the above, this study evaluated the effect of foliar application of salicylic acid at different concentrations in the mitigation of salt stress on gas exchange, growth, and quality of 'Paluma' guava seedlings. The experiment was conducted in a greenhouse, in Campina Grande - PB, Brazil, using a randomized block design in a 5 × 5 factorial arrangement, corresponding to five levels of electrical conductivity of water (0.6, 1.5, 2.4, 3.3, and 4.2 dS m-1) and five concentrations of salicylic acid (0 - Control; 0.8, 1.6, 2.4, and 3.2 mM), with four replicates and two plants per plot. Foliar application of salicylic acid at a concentration of up to 1.4 mM reduced the deleterious effects of salt stress on the instantaneous water use efficiency of 'Paluma' guava seedlings at 180 days after sowing. The concentrations of salicylic acid applied via foliar did not mitigate the harmful effects of irrigation water salinity on the growth and quality of 'Paluma' guava seedlings. Keywords: Abiotic stress, Psidium guajava L., water scarcity.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Gas exchange, growth and quality of guava seedlings under salt stress and salicylic acid

Xavier¹,

Lima²,

Gheyi³

et al. 2022

Rev. ambiente água

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“…Stomatal conductance is responsible for the influx and efflux of CO 2 and water through the stomata, and the smaller the opening, the greater the stomatal resistance, resulting in a decrease in transpiration (Sousa, Gheyi, Brito, Xavier, & Furtado, 2016). Corroborating this study Dias, Lima, Gheyi, Soares and Fernandes (2020) evaluated the gas exchange of white fiber cotton plants cv. 'BRS 368 RF' under salinity of irrigation water (0.7, 2.2, 3.7, 5.2, and 6.7 dS m -1 ) and verified a reduction of 8.96% in their transpiration as a function of the unit increment in the electrical conductivity of irrigation water.…”

Section: Resultsmentioning

confidence: 99%

Foliar application of H2O2 as salt stress attenuator in ‘BRS Rubi do Cerrado’ sour passion fruit

Ramos

Lima

et al. 2021

Semina: Ciênc. Agrár.

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Irrigation with saline water causes a reduction in yield, especially in semi-arid regions. Cultivation strategies have been developed to mitigate salt stress on plants, such as the use of hydrogen peroxide. The objective of this study was to evaluate the attenuating effect of hydrogen peroxide on the gas exchange and growth of ‘BRS Rubi do Cerrado’ sour passion fruit cultivated under irrigation with saline water. The design was completely randomized in split-plot plots, with water salinity levels ECw (0.6, 1.2, 1.8, 2.4, and 3.0 dS m-1) considered the plots and the concentrations of hydrogen peroxide H2O2 (0, 15, 30, and 45 μM) considered the subplots, with three replicates. Gas exchange (stomatal conductance, transpiration, CO2 assimilation rate, intercellular CO2 concentration, instantaneous water use efficiency, and instantaneous carboxylation efficiency), and absolute and relative growth rates in stem diameter were evaluated. An increase in irrigation water salinity from 0.6 dS m-1 reduced gas exchange, and exogenous application of hydrogen peroxide did not promote a significant effect on gas exchange. However, foliar application of hydrogen peroxide at 15 μM increased the growth of ‘BRS Rubi do Cerrado’ sour passion fruit.

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“…Em outra pesquisa Dias et al (2020) estudaram os impactos sobre o crescimento e trocas gasosas do algodoeiro de fibra branca cv BRS 368 RF irrigado com águas de salina (CE -0,7; 2,2; 3,7; 5,2 e 6,7 dS m -1 ) e quatro combinações de nitrogênio-potássio -N/K2O (70/50, 100/75, 130/100, 160/125% da dose recomendada). Os autores relataram o comprometimento do crescimento e das trocas gasosas do algodoeiro irrigado com água de CE a partir de 0,7 dS m -1 , ao passo que o maior crescimento na altura da planta e a maior condutância estomática do algodão cv.…”

Section: Simões Et Al (unclassified

Salinização secundária no semiárido e seus impactos no solo, na agricultura e cultivo das plantas – uma revisão

Filho

Bonilla

2022

RSD

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A salinização do solo pode ocorrer de forma antropogênica ou secundária ou como resultado de processos naturais a exemplo da intemperização dos minerais ou até mesmo pelo aumento da capilaridade das águas subterrâneas mais salinas em regiões com lençol freático mais baixo. Entre as fontes antropogênicas de salinização do solo se destacam atividades industriais como a exploração de petróleo, a mineração e destacando-se ainda as práticas agrícolas não sustentáveis. A implantação de sistemas de irrigação no semiárido muitas vezes promovem mudanças que resultam no acúmulo de sais na superfície do solo, ascensão do lençol freático e contaminação dos recursos hídricos impactando a dinâmica ambiental daquele local. Diante disso esta revisão de literatura teve como objetivo abordar os principais impactos relacionados com a salinização secundária e seus efeitos nas propriedades do solo, analisando-se ainda o cultivo em condições salinas de culturas de importância agrícola e seus impactos sobre o desenvolvimento das plantas. Esse trabalho foi direcionado por um levantamento bibliográfico que agrupou temas importantes sobre salinização secundária do solo e o cultivo de culturas resistentes a esse tipo de ambiente. Com base nos resultados obtidos nessa revisão, conclui-se que a irrigação com água de baixa qualidade tem se apresentado como alternativa para a produção agrícola, principalmente para culturas que tem se mostrado resistentes a solos salinizados e que pode representar uma importante alternativa para regiões com escassez de água.

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Growth and Gas Exchanges of Cotton Under Water Salinity and Nitrogen-Potassium Combination

Cited by 16 publications

References 26 publications

Gas exchange, growth and quality of guava seedlings under salt stress and salicylic acid

Gas exchange, growth and quality of guava seedlings under salt stress and salicylic acid

Foliar application of H2O2 as salt stress attenuator in ‘BRS Rubi do Cerrado’ sour passion fruit

Salinização secundária no semiárido e seus impactos no solo, na agricultura e cultivo das plantas – uma revisão

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