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Publication Type J
Authors Zhang, T., J. Song, J. L. Fan and G. Feng
Title Effects of saline-waterlogging and dryness/moist alternations on seed germination of halophyte and xerophyte
Source Plant Species Biology
Author Keywords dry and moist alternation germination halophyte waterlogging xerophyte haloxylon-ammodendron temperature chenopodiaceae tolerance recovery leakage growth stage
Abstract In arid zones, precipitation distribution is extremely uneven, with saline-waterlogging and dry-moist cycles appearing frequently, which negatively impact on seed germination and seedling establishment. The responses of two halophytes, Suaeda physophora and Haloxylon ammodendron, and a xerophyte, Haloxylon persicum, to saline-waterlogging and dry-moist cycles were studied. The results showed that aeration increased seed germination for all species when seeds were submerged in NaCl, especially for xerophyte. Compared with S.physophora and H.ammodendron, seed germination, recovery germination, and total germination of H.persicum were much lower when seeds were submerged in 700mm NaCl, especially for the recovery germination and total germination of nongerminated seeds when the seeds were desiccated and then transferred to distilled water. However, when the seeds were submerged in 700mm NaCl with aeration, the seed germination, recovery germination, and total germination of nongerminated seeds transferred to distilled water increased dramatically for H.persicum. No adverse effect of desiccation was found on those values of nongerminated seeds pretreated in NaCl with or without aeration for the two halophytes. In conclusion, seeds of the two halophytes were more tolerant to waterlogging and dry-moist cycles than seeds of the xerophyte during emergence under saline conditions; these traits may be important for halophytes to survive extreme saline environments during the seed germination stage.
Author Address [Zhang, Tao; Feng, Gu] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China. [Zhang, Tao; Feng, Gu] China Agr Univ, Coll Resource & Environm Sci, Beijing 100094, Peoples R China. [Song, Jie] Shandong Normal Univ, Coll Life Sci, Jinan, Shandong, Peoples R China. [Fan, Jialin] Henan Acad Sci, Isotope Inst, Zhengzhou, Henan, Peoples R China. [Zhang, Tao] NE Normal Univ, Inst Grassland Sci, Changchun, Jilin, Peoples R China. Feng, G (reprint author), Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China. fenggu@cau.edu.cn
ISSN 0913-557X
ISBN 0913-557X
29-Character Source Abbreviation Plant Spec. Biol.
Publication Date Jul
Year Published 2015
Volume 30
Issue 3
Beginning Page 231-236
Digital Object Identifier (DOI) 10.1111/1442-1984.12056
Unique Article Identifier WOS:000357429800008
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