Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15324980701429342 |
Seed size effects on seedling emergence of desert psammophytes in China | |
Tobe, Kazuo; Zhang, Liping; Ornasa, Kenji | |
通讯作者 | Tobe, Kazuo |
来源期刊 | ARID LAND RESEARCH AND MANAGEMENT
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ISSN | 1532-4982 |
EISSN | 1532-4990 |
出版年 | 2007 |
卷号 | 21期号:3页码:181-192 |
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. |
英文关键词 | Atraphaxis bracteata Caragana korshinskii irrigation sand dunes seed burial depth seed fate seed weight water availability |
类型 | Article |
语种 | 英语 |
国家 | Japan ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000247999200002 |
WOS关键词 | SHEAR-STRENGTH CONDITIONS ; TRITICUM-AESTIVUM L ; SHORTGRASS STEPPE ; SOIL STRENGTH ; SAND BURIAL ; GERMINATION ; WATER ; TEMPERATURE ; GROWTH ; DUNES |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/153526 |
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]. 中国科学院西北生态环境资源研究院,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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