Loading content, please wait..
loading..
Logo
Version 3.22
or
Publication Type J
Authors Qu, X. X., J. M. Baskin, L. Wang and Z. Y. Huang
Title Effects of cold stratification, temperature, light and salinity on seed germination and radicle growth of the desert halophyte shrub, Kalidium caspicum (Chenopodiaceae)
Source Plant Growth Regulation
Author Keywords adaptative strategy; desert halophyte; Kalidium caspicum; radicle growth; seed germination halostachys-caspica; dormancy; survival; stress; salt; foliatum; poaceae; china; sand
Abstract We tested the effects of cold stratification, temperature, light and NaCl on seed germination and germination recovery and of NaCl on radicle growth and radicle elongation recovery of Kalidium caspicum, a small leafy succulent shrub dominant in saline deserts in northwest China. In all conditions of temperature and light/darkness, germination percentages and rates of cold-stratified seeds were significantly higher than those of nonstratified seeds. Germination of a high percentage of both nonstratified and stratified seeds was inhibited by 0.2 M NaCl, and 0.6 M NaCl completely inhibited germination. Nongerminated seeds germinated after they were transferred from NaCl solutions to distilled water. Radicle elongation significantly decreased with increase in salinity, and it was completely inhibited by >= 1.0 M NaCl; radicle elongation recovered in young seedlings pretreated by 10 days of incubation in <= 0.4 M NaCl. Results show that seed germination and early seedling growth of K. caspicum are salt tolerant, and these characteristics help explain why this species can survive and dominate salt habitats, such as those in the Junggar desert in Xinjiang, northwest China.
Author Address Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China. Univ Kentucky, Dept Biol, Lexington, KY 40506 USA. Huang, ZY, Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China. zhenying@ibcas.ac.cn
29-Character Source Abbreviation Plant Growth Regul.
Publication Date Apr
Year Published 2008
Volume 54
Issue 3
Beginning Page 241-248
Unique Article Identifier ISI:000253529600007
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