Biomass Accumulation and Production of Castor Bean Under Saline Stress and Nitrogen Fertilization During Phenophases

Lima, Giuseppe; Nobre, Reginaldo Gomes; Gheyi, H.R.; Soares, L.A.A.; Silva, A.O.; Lourenço, G.S.

doi:10.12702/ii.inovagri.2014-a006

Cited by 3 publications

(2 citation statements)

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“…WSP was also affected by EC and decreased by 92.77% as EC increased from 0.6 to 4.6 dS m -1 , corresponding to a reduction of 162.7 g ( Figure 2B). These results corroborate those found by Lima et al (2014), in which WSP decreased by 72.7% in castor plants cv. BRS Energia as the EC of irrigation water increased from 0.4 to 4.4 dS m -1 .…”

Section: Esupporting

confidence: 92%

Salinity and nitrogen doses in the production and oil content of castor bean

Alves

Gheyi

Santos

et al. 2019

SCA

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The proper management of irrigation and mineral nutrition is critical to the success of crops, especially crops grown under salt stress conditions. The objective of this study was to evaluate the production and oil content of castor plants (Ricinus communis L.) irrigated with brackish water with different salinity levels (0.6, 1.6, 2.6, 3.6, and 4.6 dS m-1) and grown under different nitrogen levels (50, 75, 100, 125, and 150 mg of N kg-1 soil). These treatments were arranged in a completely randomized block design with a 5 ? 5 factorial scheme and three repetitions, totaling 75 experimental units. The interaction effect between salinity levels and nitrogen levels affected fruit weight per plant and oil content, and irrigation with brackish water with an electrical conductivity starting at 0.6 dS m-1 reduced the number of racemes per plant, number of fruits, and the weight of fruits and seeds.

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Section: Esupporting

confidence: 92%

Salinity and nitrogen doses in the production and oil content of castor bean

Alves

Gheyi

Santos

et al. 2019

SCA

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“…Excess of salt in the soil solution causes metabolic disturbances in plants due to the osmotic and ionic effects of salinity, leading to reduced crop growth and productivity (Khan & Panda, 2008;Lima, Nobre, Gheyi, Soares, & Silva, 2014). The osmotic effect is immediate due to the difference in osmotic potential between the external and internal environments of the cell, whereas the ionic effect occurs later when the concentration of Na + and/or Clreaches toxic levels in the cytosol (Shavrukov, 2013).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant Protection of Photosynthesis in Two Cashew Progenies Under Salt Stress

Silva¹,

Sousa²,

Santos³

et al. 2018

JAS

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The present work evaluated the indicators of photosynthetic efficiency and antioxidative protection in cashew tree seedlings subjected to salinity stress. The study was conducted with seedlings of two advanced dwarf cashew clones (CCP09 and CCP76) subjected to salt stress with increasing doses of NaCl (0, control; 25; 50; 75; 100 mM) in the nutrient solution for 30 days under greenhouse conditions. The variables of gas exchange, CO2 assimilation (PN), stomatal conductance (gS), transpiration (E), intercellular CO2 concentration (CI), photochemical activity, potential quantum efficiency (Fv/Fm), effective quantum efficiency (ΔF/Fm’) of photosystem II (PSII), photochemical quenching (qP), non-photochemical quenching (NPQ) electron transport rate (ETR) as well as the indicators of damage and oxidative protection were measured. Under these conditions, there was an intense accumulation Na+ associated with a reduction in the K+/Na+ ratio in the leaves of both clones in response to salt, with higher values for this ratio in clone CCP09 than in CCP76 the highest concentration of NaCl (100 mM). Salinity reduced PN, gS and E in the two clones evaluated, with lower reductions in CCP09 than in CCP76 at the highest salt dose. Instantaneous carboxylation (PN/CI) and water use (PN/E) efficiencies were strongly restricted by salinity but were less affected in CCP09 than in CCP76. Salinity stress also increased hydrogen peroxide (H2O2) levels in CCP09, whereas lipid peroxidation decreased in both progenies. The clones presented specific antioxidant responses due to greater enzymatic and non-enzymatic activity in CCP76, in addition to the activity of phenol peroxidase (POX) in CCP09.

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Salinity in irrigation water with organic fertilizer application on growth of castor bean

Mario¹,

José²,

Lunara³

et al. 2016

Afr. J. Agric. Res.

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Plants grown under salt stress are adversely affected, however, it has been suggested the use of organic inputs in order to mitigate the deleterious effects of salinity. As a result, it aimed to evaluate the effect of different electrical conductivities of irrigation water due to the application of organic fertilizers in the cultivation of castor bean. The experiment was conducted in greenhouse located at State University of Paraiba, municipality of Catolé do Rocha-PB, Brazil. It adopted a completely randomized design (CRD), in a factorial scheme 5 x 3, with 8 repetitions. The first factor was the electrical conductivity of irrigation water (ECw) 0.5; 1.5; 2.5; 3.5 and 4.5 dS m -1 and the second factor refers to organic fertilizers: control treatment, biofertilizers beef and cow urine. There was interaction between the electrical conductivity x organic fertilizer factors. The unit increased from 0.5 dS m -1 of electrical conductivity of irrigation water reduced the growth, development and dry matter production of castor bean. The application of bovine growth provides greater biofertilizer castor. Furthermore, the organic raw material attenuates the effects of salt stress.

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Biomass Accumulation and Production of Castor Bean Under Saline Stress and Nitrogen Fertilization During Phenophases

Cited by 3 publications

References 0 publications

Salinity and nitrogen doses in the production and oil content of castor bean

Salinity and nitrogen doses in the production and oil content of castor bean

Antioxidant Protection of Photosynthesis in Two Cashew Progenies Under Salt Stress

Salinity in irrigation water with organic fertilizer application on growth of castor bean

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