Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2008.12.012 |
Effect of environmental heterogeneity on field germination of Opuntia tomentosa (Cactaceae, Opuntioideae) seeds | |
Olvera-Carrillo, Y.3; Mendez, I.2; Sanchez-Coronado, M. E.1; Marquez-Guzman, J.3; Barradas, V. L.1; Huante, P.1; Orozco-Segovia, A.1 | |
通讯作者 | Orozco-Segovia, A. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2009 |
卷号 | 73期号:4-5页码:414-420 |
英文摘要 | We studied in Opuntia tomentosa the effect of plant shade (orientation and distance), and the place where the seeds remained before germination. Seeds were collected in 1998 and a) sown immediately on soil (non-buried seeds), b) stored in the laboratory and sown on soil during the 1999 rainy season (control) or c) buried after collection (under the shade of a tree, a rock and in an open space), exhumed 7 months later and sown in 1999 (exhumed seeds). Seeds were sown under or outside the shade of several trees: or on the northern, eastern and western sides of a 14-m-tall tree. In 1999, germination was high in all samples, but the control seeds had delayed germination. After two rainy seasons, non-buried seeds had the lowest germination rate. Germination was not affected by the distance from the tree. Outside of the plant’s shade, germination was low. Germination was affected more by the environmental heterogeneity than by the individual plant shade. Germination probabilities were the highest at 16-19 degrees C; field germination was zero at 20.6 degrees C. Seed polymorphism and microenvirommental heterogeneity spread germination across two rainy seasons creating a permanent seed bank. (C) 2008 Elsevier Ltd. All rights reserved |
英文关键词 | Lava field Physiological dormancy Plant shade effect Safe sites Seed burial |
类型 | Article |
语种 | 英语 |
国家 | Mexico |
收录类别 | SCI-E |
WOS记录号 | WOS:000264614300003 |
WOS关键词 | SONORAN DESERT CACTI ; CHIHUAHUAN DESERT ; NURSE PLANTS ; 2 HABITATS ; SEEDLINGS ; DORMANCY ; MEXICO ; LIFE ; HYDRATION ; RASTRERA |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | Universidad Nacional Autónoma de México |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/161328 |
作者单位 | 1.Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04510, DF, Mexico; 2.Univ Nacl Autonoma Mexico, Inst Invest Matematicas Aplicadas & Sistemas, Mexico City 04510, DF, Mexico; 3.Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Comparada, Mexico City 04510, DF, Mexico |
推荐引用方式 GB/T 7714 | Olvera-Carrillo, Y.,Mendez, I.,Sanchez-Coronado, M. E.,et al. Effect of environmental heterogeneity on field germination of Opuntia tomentosa (Cactaceae, Opuntioideae) seeds[J]. Universidad Nacional Autónoma de México,2009,73(4-5):414-420. |
APA | Olvera-Carrillo, Y..,Mendez, I..,Sanchez-Coronado, M. E..,Marquez-Guzman, J..,Barradas, V. L..,...&Orozco-Segovia, A..(2009).Effect of environmental heterogeneity on field germination of Opuntia tomentosa (Cactaceae, Opuntioideae) seeds.JOURNAL OF ARID ENVIRONMENTS,73(4-5),414-420. |
MLA | Olvera-Carrillo, Y.,et al."Effect of environmental heterogeneity on field germination of Opuntia tomentosa (Cactaceae, Opuntioideae) seeds".JOURNAL OF ARID ENVIRONMENTS 73.4-5(2009):414-420. |
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