Loading content, please wait..
loading..
Logo
Version 3.22
or
Publication Type J
Authors Khan, M. A., B. Gul and D. J. Weber
Title Seed germination characteristics of Halogeton glomeratus
Source Canadian Journal of Botany-Revue Canadienne De Botanique
Author Keywords Great Basin desert; Halogeton glomeratus; halophyte; recovery of seed germination; salt deserts; temperature regime SALINITY; TEMPERATURE; HALOPHYTES; RESPONSES; PLANTS
Abstract Halogeton glomeratus (Bieb.) C.A. Mey, an annual forb in the family Chenopodiaceae, is widely distributed in the inland salt deserts of western North America. Experiments were conducted to determine the effects of NaCl and temperature on seed germination and the recovery of germination responses after transfer to distilled water. Seeds of H. glomeratus were germinated at various temperature regimes (5-15 degreesC, 10-20 degreesC, 10-30 degreesC, 15-25 degreesC, 20-30 degreesC, and 25-35 degreesC), and salinities (0, 200, 400, 600, 800, and 1000 mM NaCl) in a 12 h dark : 12 h light photoperiod. Increases in NaCl concentration progressively inhibited seed germination, and this inhibition was more substantial in the dark than in the photoperiod treatment. Seed germination at concentrations higher than 800 mM NaCl was low (10%). Cooler temperatures significantly inhibited germination in all treatments. A temperature regime of high night (25 degreesC) and high day (35 degreesC) temperatures led to higher germination. Rate of germination decreased with an increase in salinity and was highest at 25-35 degreesC and lowest at 5-15 degreesC temperature regimes. Seeds were transferred from salt solution to distilled water after 20 days, and those from high salinities recovered quickly at all temperature regimes. Recovery germination percentages from the highest salinity treatment varied from 51 to 100% at various temperature regimes.
Author Address Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA Univ Karachi, Dept Bot, Karachi 75270, Pakistan Weber DJ Brigham Young Univ, Dept Bot & Range Sci, Provo, UT 84602 USA
29-Character Source Abbreviation Can. J. Bot.-Rev. Can. Bot.
Publication Date Oct
Year Published 2001
Volume 79
Issue 10
Beginning Page 1189-1194
Unique Article Identifier ISI:000171697800008
Plants associated with this reference

LEGAL NOTICES — This website is protected by Copyright © The University of Sussex, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. The eHALOPH database is protected by Database Right and Copyright © The University of Sussex and other contributors, 2006, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021. This database is based on an earlier work by James Aronson.
THIS WEBSITE AND THIS DATABASE ARE PROVIDED ON AN "AS IS" BASIS, AND YOU USE THEM AND RELY ON THEM AT YOUR OWN RISK.

Contact email: halophytes@sussex.ac.uk
Credits – Tim Flowers, Joaquim Santos, Moritz Jahns, Brian Warburton, Peter Reed