Seed germination and seedling emergence of three Artemisia species (Asteraceae) inhabiting desert sand dunes in China
文献类型：期刊论文
| 作者 | Tobe, K; Zhang, L; Omasa, K |
| 刊名 | SEED SCIENCE RESEARCH
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 16期号:1页码:61-69 |
| 关键词 | Artemisia arenaria Artemisia ordosica Artemisia sphaerocephala irrigation light seed burial depth temperature |
| ISSN号 | 0960-2585 |
| DOI | 10.1079/SSR2005230 |
| 通讯作者 | Tobe, K(tobe@nies.go.jp) |
| 英文摘要 | Artemisia ordosica, A. arenaria and A. sphaerocephala are semi-shrubs inhabiting desert sand dunes in China and often used to rehabilitate desertified areas. Improvement of dune rehabilitation success by sowing requires better understanding of the processes involved in the control of seed germination and seedling emergence in these species. Thus, (1) effects of temperature, light and osmotica (polyethylene glycol-6000) on seed germination, and (2) effects of seed burial depth in sand and irrigation regime on seedling emergence, were studied under controlled conditions. Seeds of the three species required light for germination, and the light fluence needed for germination was dependent on temperature. Seedling emergence of the three species was maximal (70-94%) for seeds sown at a depth of 2.5 mm, and decreased with increasing seed burial depth when the pots were initially and subsequently treated with 16 mm and 3 mm irrigation at 1-d intervals. However, when the pots were initially and subsequently treated with 8 mm and 3 mm irrigation at 2-d intervals, seedling emergence was almost completely suppressed due to water deficiency in sand. It is suggested that the probability of seed germination and seedling emergence of the three species in the field is very limited, because the light requirement restricts seed germination to shallow sand layers where water is lost rapidly due to evaporation. Temperature appeared to have secondary effects on seed germination, by modifying the light sensitivity of seeds. |
| 收录类别 | SCI |
| WOS关键词 | WESTERN-AUSTRALIA ; NEGEV DESERT ; ARID REGION ; SOIL ; SURVIVAL ; LIGHT ; PENETRATION ; TRIDENTATA ; MONOSPERMA ; PLANTS |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000235234900006 |
| 出版者 | CABI PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555782 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Tobe, K |
| 作者单位 | 1.Natl Inst Environm Studies, Lab Intellectual Fundamentals Environm Studies, Tsukuba, Ibaraki 3058506, Japan 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 3.Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan |
| 推荐引用方式 GB/T 7714 | Tobe, K,Zhang, L,Omasa, K. Seed germination and seedling emergence of three Artemisia species (Asteraceae) inhabiting desert sand dunes in China[J]. SEED SCIENCE RESEARCH,2006,16(1):61-69. |
| APA | Tobe, K,Zhang, L,&Omasa, K.(2006).Seed germination and seedling emergence of three Artemisia species (Asteraceae) inhabiting desert sand dunes in China.SEED SCIENCE RESEARCH,16(1),61-69. |
| MLA | Tobe, K,et al."Seed germination and seedling emergence of three Artemisia species (Asteraceae) inhabiting desert sand dunes in China".SEED SCIENCE RESEARCH 16.1(2006):61-69. |
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来源：寒区旱区环境与工程研究所
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