Journal
ARCHIVES OF BIOLOGICAL SCIENCES
Volume 59, Issue 3, Pages 227-231Publisher
INST BIOLOSKA ISTRAZIVANJA SINISA STANKOVIC
DOI: 10.2298/ABS0703227Z
Keywords
germination; NaCl; light; gibberellin; Gentianaceae; Centaurium
Categories
Ask authors/readers for more resources
The influence of high NaCl concentrations on seed germination in both light and darkness was examined in the species Centaurium pulchellum, C. erythraea, C. littorale, C spicatum, and C tenuiflorum. Salt tolerance was found to depend on the life history of the seeds. To be specific, seeds of all five species failed to complete germination when exposed to continuous white light if kept all the time in the presence of 100-200 mM and greater NaCl concentrations. However, when after two weeks NaCl was rinsed from the seeds and the seeds were left in distilled water under white light for an additional two weeks, all species completed germination to a certain extent. The percent of germination not only depended on NaCl concentration in the prior medium, but was also species specific. Thus, seeds of C pulchellum, C erythraea, and C littorale completed germination well almost irrespective of the salt concentration previously experienced. On the other hand, seeds of C tenuiflorum completed germination poorly if NaCl concentrations in the prior media were greater than 200 mM. When seeds after washing were transferred to darkness for an additional 14 days, they failed to complete germination if previously imbibed on media containing NaCl concentrations greater than 400 mM. However, the seeds of all species, even if previously imbibed at 800 mM NaCl, could be induced to complete germination in darkness by 1 mM gibberellic acid.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available