2019
DOI: 10.1590/1983-21252019v32n221rc
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Cell Damage, Water Status and Gas Exchanges in Castor Bean as Affected by Cationic Composition of Water

Abstract: Castor bean is an oilseed crop which is able to adapt to various edaphoclimatic conditions and has considerable contents of oil in its seeds, with potential for use in the castor oil industry. In this context, this study aimed to evaluate changes in membrane damage, water status and gas exchanges in castor bean plants (cv. 'BRS Energia') in response to irrigation water salinity and cationic composition. Randomized blocks were used to test six cationic compositions (four replicates. Plants in the control treatm… Show more

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Cited by 10 publications
(8 citation statements)
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“…However, the increase in the percentage of cell damage in leaf tissues of plants grown under a high concentration of salts may represent a mechanism to avoid tissue dehydration, due to the reduction in the osmotic component and water potential in the leaves (Fioreze, Rodrigues, Carneiro, Silva, & Lima, 2013). Lima et al (2019) evaluated membrane damage, water status, and gas exchange in castor bean plants (Ricinus communis L.) cv. BRS Energia, in response to salinity and the cationic nature of irrigation water and verified that the high potassium concentration resulted in greater damage to the cell membrane.…”
Section: Resultsmentioning
confidence: 99%
“…However, the increase in the percentage of cell damage in leaf tissues of plants grown under a high concentration of salts may represent a mechanism to avoid tissue dehydration, due to the reduction in the osmotic component and water potential in the leaves (Fioreze, Rodrigues, Carneiro, Silva, & Lima, 2013). Lima et al (2019) evaluated membrane damage, water status, and gas exchange in castor bean plants (Ricinus communis L.) cv. BRS Energia, in response to salinity and the cationic nature of irrigation water and verified that the high potassium concentration resulted in greater damage to the cell membrane.…”
Section: Resultsmentioning
confidence: 99%
“…Then, excess water was removed with paper towels to determine the turgid mass (TM); subsequently, the samples were dried in an oven with air circulation (temperature ≈ 65 ºC ± 3 ºC, until reaching constant mass) to obtain the dry mass (DM). RWC was obtained according to Lima et al (2019), using Equation 2:…”
Section: = [ Wi − Wf × 1]mentioning
confidence: 99%
“…In this scenario, the available water resources are characterized mainly by containing high concentrations of salts, but they vary according to the local geology and the type of source, generally with predominance of chlorinated waters, especially of sodium, calcium and magnesium, and, in some cases, potassium (MEDEIROS; LISBOA; OLIVEIRA, 2003;NASCIMENTO et al, 2017;LIMA et al, 2019).…”
Section: Introductionmentioning
confidence: 99%