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- W4254248847 abstract "Salinity has some adverse effects on the morphology and physiology in many crops. To alleviate the damages of salinity, the applications of calcium nitrate on quinoa-treated NaCl ( Chenopodium quinoa Willd) were investigated under the supported-hydroponic environment. The plants were exposed to 200mM NaCl with 20mM and 150mM Ca (NO 3 ) 2 (EC 18.61~37.85 ds·m -1 and osmotic potential -0.89~-1.71MPa), and sampled for measurements of osmotic potential, stomatal characteristics, and root characteristics. The presence of 200 mM NaCl alone decreased the relative parameters in different degrees. In all treatments, the indexes on stomatal characteristic were decreased with increasing electrical conductivity (EC) levels except for stomatal density. Stomatal conductance decreased more markedly when osmotic potential reached -0.89Mpa. Increasing in stomatal density observed in higher Ca(NO 3 ) 2 level (150mM) might be caused by the inhibition of cell division in the epidermis , which was also due to reduction of osmotic potential of the solutions.A similar trend was observed for osmotic potentials in the same tissue, which were deceased with increasing EC of the solutions. Although no significant differences in the all treatments were observed for the average diameter of roots, the beneficial effect of Ca(NO 3 ) 2 application at the concentration of 20 mM was significant in projected area, surface area, and volume. The phenomenon showed that moderate reduction in osmotic potential was favorable to cell extension due to maintaining cell turgor pressure. Much lower osmotic potential possibly inhibited cell division of root apical meristem. From the above results, it might be concluded that the effects of Ca(NO 3 ) 2 applications depended on the concentration, while the significant differences between the stomata and root morphology represented the tissue-specific as well." @default.
- W4254248847 created "2022-05-12" @default.
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- W4254248847 date "2016-04-14" @default.
- W4254248847 modified "2023-09-24" @default.
- W4254248847 title "Effects of different concentration of Ca (NO 3)2 on quinoa treated with salinity" @default.
- W4254248847 doi "https://doi.org/10.7287/peerj.preprints.1956" @default.
- W4254248847 hasPublicationYear "2016" @default.
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