Seed size effects on seedling emergence of desert psammophytes in China
文献类型：期刊论文
| 作者 | Tobe, Kazuo; Zhang, Liping; Ornasa, Kenji |
| 刊名 | ARID LAND RESEARCH AND MANAGEMENT
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 21期号:3页码:181-192 |
| 关键词 | Atraphaxis bracteata Caragana korshinskii irrigation sand dunes seed burial depth seed fate seed weight water availability |
| ISSN号 | 1532-4982 |
| DOI | 10.1080/15324980701429342 |
| 通讯作者 | Tobe, Kazuo(tobe@nies.go.jp) |
| 英文摘要 | To investigate the effects of seed size on the behavior of seeds and seedlings in sand, seedling emergence from sand was examined in Caragana korshinskii (Fabaceae; mean seed weight 65 mg) and Atraphaxis bracteata (Polygonaceae; mean seed weight 5.7 mg), two shrubs with nonphotoblastic seeds that grow on desert sand dunes in China. Seeds were sown at depths of 0 to 50 mm in sand-filled pots, and the pots were irrigated under different regimes. The results suggest that for both species, a high proportion of the seeds buried fairly deep germinate during the summer rainy season with or without producing emergent seedlings, whereas at shallow depths, where moisture is more likely to be lost by evaporation, some proportion of the seeds remain ungerminated and viable. Comparison of results in this study with those on several smaller-seeded species used in our previous studies shows that larger seeds did not always give rise to seedlings capable of emerging from deeper depths in sand. We suggested that for nonphotoblastic seeds, seed size is not a crucial determinant of the proportion of seeds that produce emergent seedlings infield conditions. |
| 收录类别 | SCI |
| WOS关键词 | SHEAR-STRENGTH CONDITIONS ; TRITICUM-AESTIVUM L ; SHORTGRASS STEPPE ; SOIL STRENGTH ; SAND BURIAL ; GERMINATION ; WATER ; TEMPERATURE ; GROWTH ; DUNES |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000247999200002 |
| 出版者 | TAYLOR & FRANCIS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555918 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Tobe, Kazuo |
| 作者单位 | 1.Natl Inst Environm Studies, Tsukuba, Ibaraki 305, Japan 2.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou, Peoples R China 3.Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo, Japan |
| 推荐引用方式 GB/T 7714 | Tobe, Kazuo,Zhang, Liping,Ornasa, Kenji. Seed size effects on seedling emergence of desert psammophytes in China[J]. ARID LAND RESEARCH AND MANAGEMENT,2007,21(3):181-192. |
| APA | Tobe, Kazuo,Zhang, Liping,&Ornasa, Kenji.(2007).Seed size effects on seedling emergence of desert psammophytes in China.ARID LAND RESEARCH AND MANAGEMENT,21(3),181-192. |
| MLA | Tobe, Kazuo,et al."Seed size effects on seedling emergence of desert psammophytes in China".ARID LAND RESEARCH AND MANAGEMENT 21.3(2007):181-192. |
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来源：寒区旱区环境与工程研究所
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