Soil seed bank and seed dormancy in wild populations of lima bean (Fabaceae): considerations for in situ and ex situ conservation
作者： J. Degreef , O. J. Rocha , T. Vanderborght , J.-P. Baudoin
关键词:
摘要: Seed dormancy and its impact on the soil seed bank for wild Lima bean (Phaseolus lunatus) populations were studied in Central Valley of Costa Rica. Five selected contrasted environments. In all cases, distribution seeds was limited to 3 cm depth. No innate observed but combination hard coat hilum opening controlled by environmental conditions responsible an induced constitution a persistent bank. Breaking this obtained brief elevation temperature from 258 458C. Impacts phenomenon concern both genetic demographic aspects situ conservation species. Consequences ex are mainly related with regeneration collection.
core.ac.uk
amjbot.org参考文章(45)
JP Baudoin, None, Lima bean: Phaseolus lunatus L. Genetic Improvement of Vegetable Crops. pp. 391- 403 ,(1993) , 10.1016/B978-0-08-040826-2.50031-X
Susan Kalisz, Lisa Horth, Mark A. Mcpeek, Fragmentation and the Role of Seed Banks in Promoting Persistence in Isolated Populations of Collinsia verna Springer, Boston, MA. pp. 286- 312 ,(1997) , 10.1007/978-1-4757-0656-7_13
G. H. Egley, Water-Impermeable Seed Coverings as Barriers to Germination Recent Advances in the Development and Germination of Seeds. pp. 207- 223 ,(1989) , 10.1007/978-1-4613-0617-7_16
G. Macaya, O. J. Rocha, E. M. Vargas, J. P. Baudoin, Variation in the content of phaseolin in wild populations of lima beans (Phaseolus lunatus L.) in the Central Valley of Costa Rica. Plant Genetic Resources Newsletter. pp. 53- 58 ,(2000)
Carol C. Baskin, Jerry M. Baskin, Seeds: Ecology, Biogeography, and, Evolution of Dormancy and Germination ,(1998)
B. Fofana, X. Vekemans, P. du Jardin, J.P. Baudoin, Genetic diversity in Lima bean (Phaseolus lunatus L.) as revealed by RAPD markers Euphytica. ,vol. 95, pp. 157- 165 ,(1997) , 10.1023/A:1002910114869
A. Maquet, I. Zoro Bi, O. J. Rocha, J. P. Baudoin, Case studies on breeding systems and its consequences for germplasm conservation Genetic Resources and Crop Evolution. ,vol. 43, pp. 309- 318 ,(1996) , 10.1007/BF00132950
J. S CHOINSKI, J M TUOHY, Effect of Water Potential and Temperature on the Germination of Four Species of African Savanna Trees Annals of Botany. ,vol. 68, pp. 227- 233 ,(1991) , 10.1093/OXFORDJOURNALS.AOB.A088247
Spencer C. H. Barrett, Joel S. Shore, Isozyme variation in colonizing plants. Springer Netherlands. pp. 106- 126 ,(1989) , 10.1007/978-94-009-1840-5_6
I. Zoro Bi, A. Maquet, J. Degreef, B. Wathelet, J. P. Baudoin, Sample size for collecting seeds in germplasm conservation: the case of the Lima bean (Phaseolus lunatus L.) Theoretical and Applied Genetics. ,vol. 97, pp. 187- 194 ,(1998) , 10.1007/S001220050884