Effects of sodium, magnesium and calcium salts on seed germination and radicle survival of a halophyte, Kalidium caspicum (Chenopodiaceae)
Tobe; K; Li; XM; Omasa; Tobe, K, Natl Inst Environm Studies, Lab Intellectual Fundamentals Environm Studies, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan
2002
Source PublicationAUSTRALIAN JOURNAL OF BOTANY
ISSN0067-1924
Volume50Issue:2Pages:163-169
AbstractKalidium caspician (L.) Ung.-Sternb. is a common species of highly saline habitats of north-western China, which in previous germination research has been shown to be rather sensitive to NaCl toxicity. To investigate the effects of different salts on the seed germination and radicle survival of this halophytic shrub, seeds were incubated in various salt (NaCl, Na2SO4, MgCl2, or MgSO4 with or without CaCl2) or polyethylene glycol-6000 solutions. The germination percentage and the percentage of emerging radicles surviving to a length of at least 4 mm were examined. The survival of K. caspician radicles depended mainly on the cation composition of the media: both Na+ and Mg2+ had toxic effects on the radicles, while Ca2+ alleviated the toxicity of these cations. Mg2+ was more toxic than Na+ and a higher concentration of Ca2+ was needed to alleviate its toxicity. It was suggested that the establishment of seedlings of K. caspicum in the field is facilitated by the marked alleviation of salt toxicity by Ca2+ and that the proportion of soluble Na, Mg and Ca ions in the soil determines the distribution of K. caspicum in the field.
DepartmentNatl Inst Environm Studies, Lab Intellectual Fundamentals Environm Studies, Tsukuba, Ibaraki 3058506, Japan; Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China; Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan
KeywordGrowth Salinity Nacl Root Barley Cotton Temperature Chloride Toxicity Stress
Subject Area植物生理学
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.xjlas.org/handle/365004/10632
Collection中国科学院新疆生态与地理研究所(2010年以前数据)
Corresponding AuthorTobe, K, Natl Inst Environm Studies, Lab Intellectual Fundamentals Environm Studies, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan
Recommended Citation
GB/T 7714
Tobe,K,Li,et al. Effects of sodium, magnesium and calcium salts on seed germination and radicle survival of a halophyte, Kalidium caspicum (Chenopodiaceae)[J]. AUSTRALIAN JOURNAL OF BOTANY,2002,50(2):163-169.
APA Tobe,K,Li,XM,Omasa,&Tobe, K, Natl Inst Environm Studies, Lab Intellectual Fundamentals Environm Studies, 16-2 Onogawa, Tsukuba, Ibaraki 3058506, Japan.(2002).Effects of sodium, magnesium and calcium salts on seed germination and radicle survival of a halophyte, Kalidium caspicum (Chenopodiaceae).AUSTRALIAN JOURNAL OF BOTANY,50(2),163-169.
MLA Tobe,et al."Effects of sodium, magnesium and calcium salts on seed germination and radicle survival of a halophyte, Kalidium caspicum (Chenopodiaceae)".AUSTRALIAN JOURNAL OF BOTANY 50.2(2002):163-169.
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