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dc.contributor.authorZheng, Yuanrun
dc.contributor.authorGao, Yong
dc.contributor.authorAn, Ping
dc.contributor.authorShimizu, Hideyuki
dc.contributor.authorRimmington, Glyn M.
dc.date.accessioned2016-02-19T17:44:07Z
dc.date.available2016-02-19T17:44:07Z
dc.date.issued2011-02
dc.identifier.citationZheng, Y., Gao, Y., An, P., Shimizu, H., and Rimmington, G.M., 2011, Germination characteristics of Agriophyllum squarrosum: Canadian Journal of Botany v. 82, no. 11, p. 1662-1670, doi: 10.1139/b04-130.
dc.identifier.issn0008-4026
dc.identifier.otherdoi: 10.1139/b04-130
dc.identifier.urihttp://doi.org/d6gpwm
dc.identifier.urihttp://hdl.handle.net/10057/11845
dc.descriptionClick on the DOI link below to access the article (may not be free).
dc.description.abstractAgriophyllum squarrosum (L.) Moq. (Chenopodiaceae), a pioneer species of natural succession in semi-arid regions of China, is widely used for vegetation rehabilitation by air seeding. Experiments were conducted to determine the effects of light intensity and photoperiod, as well as constant and alternating temperatures, on germination to improve the technology of air seeding. Seed of A. squarrosum rarely (<18.5%) germinated at 5/15, 10/20, 15/25, and 20/30 °C (night/day); 39.5% of seeds germinated at 25/35 °C in a 14-h (215 µmol·m 2·s 1) photoperiod. Under dark conditions there was a high final percent seed germination (>90%), except for 71.8% final percent seed germination at 5/15 °C. Constant temperature conditions were associated with lower seed germination (<50%). Less than 13% of seeds germinated at different light intensities (25 400 µmol·m 2·s 1) at 10/20 °C. There was no significant difference in final percent germination when seeds were exposed to 400, 100, or 25 µmol m 2 s 1 for 2 h daily. Final percent germination and germination rate deceased rapidly when the photoperiod was increased under 400 µmol·m 2·s 1. Only 49.2% of seeds germinated after 3 d. Because of the deleterious effect of light on germination, air seeding in late May is recommended.Key words: Agriophyllum squarrosum, air seeding, alternating temperature, constant temperature, light, semi-arid regions.
dc.language.isoen_US
dc.publisherNational Research Council Canada
dc.relation.ispartofseriesCanadian Journal of Botany
dc.relation.ispartofseries82(11)
dc.titleGermination characteristics of Agriophyllum squarrosum
dc.typeArticle


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