Journal
BIOLOGIA PLANTARUM
Volume 45, Issue 2, Pages 295-298Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1015117327805
Keywords
Cassia angustifolia; chlorophyll; NaCl; nitrate reductase activity; photosynthetic rate; proline; protein
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Pot culture experiments were conducted using different NaCl concentrations to assess their impact on the growth and metabolic changes in senna (Cassia angustifolia Vahl.). Five treatments (0, 40, 80, 120, and 160 mM NaCl) were given to the plants at three phenological stages, i.e. at pre-flowering, (45 days after sowing, DAS); flowering (75 DAS) and post-flowering (90 DAS) stages. A significant reduction in the biomass and length of the roots and shoots, photosynthetic rate, stomatal conductance, the total chlorophyll content, protein content, nitrate reductase activity, and reduced nitrogen content of the leaves was observed at each phenological stage with each salt concentration applied. Contrary to this, proline and nitrate contents of the leaves increased markedly. The post-flowering stage was most sensitive to NaCl treatment.
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