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Publication Type J
Authors Li, W., P. An and X. Liu
Title Effect of storage, stratification, temperature and gibberellins on germination of dimorphic seeds of Suaeda salsa under saline conditions
Source Seed Science and Technology
Language English
Author Keywords early seedling growth dormancy release light chenopodiaceae regulators stress china acid size l. Agriculture Plant Sciences
Abstract Suaeda salsa, a leaf succulent annual herb in the family Chenopodiaceae, is a main halophytic species distributed widely in saline soils of north part of China with economic potentials as sources of oil, food, vegetable and fodder. It produces dimorphic seeds (brown and black seeds). The effect of storage, cold-wet stratification (4 degrees C for two days after water imbibition), treatment with gibberellins (GA(1) and GA(4)) and temperature regimes (5/15, 10/20, 15/25, 20/30, 25/35 degrees C) on germination of Suaeda salsa seeds under NaCl stress was investigated. After one year storage under room temperature, germination percentage of brown seeds decreased while that of black ones increased both in distilled water and in saline solution (300mM NaCl). Stratification and GA(4) treatments improved black seeds' germination, but showed little effect on brown seeds. However, treatment with GA(1) failed to promote seed germination of both kinds of seeds. Salinity, temperature and their interaction significantly affected the germination of both kinds of seeds. Brown seeds under all the conditions showed higher germination percentage than black seeds. Maximum germination percentage was noted in distilled water at 15/25 degrees C and 20/30 degrees C temperature regime for both kinds of seeds. The highest rate of germination was obtained in distilled water at 20/30 degrees C for brown seeds, and at 15/25 degrees C for black seeds. Possible mechanisms involved in germination of the dimorphic seeds and the ecological adaptation of the seeds to the natural habitat are discussed.
Author Address [Li, W.; An, P.] Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan. [Li, W.; Liu, X.] Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Shijiazhuang 050021, Peoples R China. An, P (reprint author), Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan. wqli@alrc.tottori-u.ac.jp; an.ping@alrc.tottori-u.ac.jp
ISSN 0251-0952
ISBN 0251-0952
29-Character Source Abbreviation Seed Sci. Technol.
Year Published 2008
Volume 36
Issue 1
Beginning Page 122-132
Unique Article Identifier WOS:000256333800013
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