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题名: Seed dormancy and soil seedbank of the invasive weed Chenopodium hybridum in north-western China
作者: Hu, XW; Pan, J; Min, DD; Fan, Y; Ding, XY; Fan, SG; Baskin, CC; Baskin, JM
收录类别: SCIE
出版日期: 2017-02
刊名: WEED RESEARCH
卷号: 57, 期号:1-1, 页码:54-64
出版者: WILEY
出版地: HOBOKEN
英文摘要: Seed dormancy and persistence in the soil seedbank play a key role in timing of germination and seedling emergence of weeds; thus, knowledge of these traits is required for effective weed management. We investigated seed dormancy and seed persistence on/in soil of Chenopodium hybridum, an annual invasive weed in north-western China. Fresh seeds are physiologically dormant. Sulphuric acid scarification, mechanical scarification and cold stratification significantly increased germination percentages, whereas dry storage and treatments with plant growth regulators or nitrate had no effect. Dormancy was alleviated by piercing the seed coat but not the pericarp. Pre-treatment of seeds collected in 2012 and 2013 with sulphuric acid for 30 min increased germination from 0% to 66% and 62% respectively. Effect of cold stratification on seed germination varied with soil moisture content (MC) and duration of treatment; seeds stratified in soil with 12% MC for 2 months germinated to 39%. Burial duration, burial depth and their interaction had significant effects on seed dormancy and seed viability. Dormancy in fresh seeds was released from October to February, and seeds re-entered dormancy in April. Seed viability decreased with time for seeds on the soil surface and for those buried at a depth of 5 cm, and 39% and 10%, respectively, were viable after 22 months. Thus, C. hybridum can form at least a short-lived persistent soil seedbank.
关键词: maple-leaved goosefoot ; cold stratification ; seed persistence ; seed viability ; summer annual weed
作者部门: [Hu, X. W. ; Pan, J. ; Min, D. D. ; Fan, Y. ; Ding, X. Y. ; Fan, S. G.] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agro Ecosyst, Lanzhou, Peoples R China ; [Baskin, C. C. ; Baskin, J. M.] Univ Kentucky, Dept Biol, Lexington, KY USA ; [Baskin, C. C.] Univ Kentucky, Dept Plant & Soil Sci, Lexington, KY USA
通讯作者: Hu, XW (reprint author), Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Peoples R China.
学科分类: Agriculture; Plant Sciences
文章类型: Article
所属项目编号: Agroscientific Research in the Public Interes [201403048-3] ; National Natural Science Fund [31672473]
所属项目名称: 国家自然科学基金项目 ; 公益性行业科研专项
项目资助者: NSFC ; MOA
语种: 英语
DOI: 10.1111/wre.12237
ISSN号: 0043-1737
WOS记录号: WOS:000397406900007
IR记录号: WOS:000397406900007
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/188799
Appears in Collections:草地农业科技学院_期刊论文

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Recommended Citation:
Hu, XW,Pan, J,Min, DD,et al. Seed dormancy and soil seedbank of the invasive weed Chenopodium hybridum in north-western China[J]. WEED RESEARCH,2017,57(1-1):54-64.
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