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Publication Type J
Authors Piovan, M. J., G. M. Zapperi and P. D. Pratolongo
Title Seed germination of Atriplex undulata under saline and alkaline conditions
Source Seed Science and Technology
Author Keywords chenopodiaceae growth salt accumulation temperature stress
Abstract In this study the germination response of seeds of Atriplex undulata (Chenopodiaceae), a native of Argentina, to saline and alkaline conditions was evaluated. This species has potential as a rehabilitation crop for saline soils and is used as salt land pasture. The study involved three aspects: (1) germination response to three temperature regimes (20, 25 and 30 degrees C); (2) the effects of saline (NaCl) and alkaline (Na2CO3) stresses, osmotic potential (0, -1, -2 MPa) and the removal of the bracteole on germination; (3) the recovery of germination with and without the bracteole following exposure to a high level of alkalinity and salinity stress. The best germination temperature was 20 degrees C. There, were no significant differences in the response to salt and alkali treatments. Seeds failed to germinate at -2 MPa, while -1 MPa reduced germination, more so for the seeds with the bracteole removed. After a pre-treatment with salt or alkali stress, seeds exposed to alkali showed lower germination percentage if bracteoles were removed from the fruit.
Author Address [Piovan, M. J.; Zapperi, G. M.; Pratolongo, P. D.] CONICET CCT BB, Inst Argentino Oceanog, RA-8000 Bahia Blanca, Buenos Aires, Argentina. [Piovan, M. J.; Zapperi, G. M.; Pratolongo, P. D.] Univ Nacl Sur, Dpto Biol Bioquim & Farm, RA-8000 Bahia Blanca, Buenos Aires, Argentina. Piovan, MJ (reprint author), CONICET CCT BB, Inst Argentino Oceanog, Cno Carrindanga Km 7-5, RA-8000 Bahia Blanca, Buenos Aires, Argentina. mjpiovan@criba.edu.ar
ISSN 0251-0952
ISBN 0251-0952
29-Character Source Abbreviation Seed Sci. Technol.
Year Published 2014
Volume 42
Issue 2
Beginning Page 286-292
Unique Article Identifier WOS:000342040100017
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