Effect of salinity stress on ion accumulation and on the photosynthetic activity of a new energy plant, phalaris arundinacea cultivars
Reed canarygrass (Phalaris arundinacea) is a good candidate for bioenergy production in Northern and Middle Europe. The crop is well-adapted to cold and drought stress but its resistance to high salinity has not been revealed in details. In this study the effects of 75 and 150 mM NaCl treatments wer...
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| Format: | Book part |
| Published: |
2015
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| Series: | Proceedings of the International Symposium on Analytical and Environmental Problems
21 |
| Kulcsszavak: | Növénybiológia |
| Online Access: | http://acta.bibl.u-szeged.hu/56009 |
| Summary: | Reed canarygrass (Phalaris arundinacea) is a good candidate for bioenergy production in Northern and Middle Europe. The crop is well-adapted to cold and drought stress but its resistance to high salinity has not been revealed in details. In this study the effects of 75 and 150 mM NaCl treatments were investigated on the ion accumulation, water potential changes and photosynthetic activity of three Romanian reed canarygrass genotypes, Tardin, Romanesti diverse and Timpuriu. Since cv. Tardin was able to maintain high K+ level and relatively low Na+ concentration in leaf tissues, high stomatal conductance and net CO2 fixation rate under salt stress and as it could maintain the water potential of tissues at control level, this genotype can be defined as salt tolerant. Salt stress induced significant Na+ accumulation, very low K /Na+ ratio, and severe reduction in stomatal conductance and photosynthetic activity in the leaf tissues of Timpuriu cultivar, which proved to be sensitive to high salinity. |
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| Physical Description: | 392-395 |
| ISBN: | 978-963-306-411-5 |