Alvarado, V. and Bradford, K.J. (2002) A hydrothermal time model explains the cardinal temperatures for seed germination. Plant, Cell and Environment 25, 1061–1069.
Amen, R.D. (1966) Extent and role of seed dormancy in alpine plants. Quarterly Review of Biology 41, 271–281.
Baskin, C.C. and Baskin, J.M. (1998) Seeds: ecology, biogeography and evolution of dormancy and germination. San Diego, Academic Press.
Baskin, J.M. and Baskin, C.C. (2004) A classification system for seed dormancy. Seed Science Research 14, 1–16.
Bolingue, W., Ly Vu, B., Leprince, O. and Buitink, J. (2010) Characterization of dormancy behaviour in seeds of the model legume. Seed Science Research 20, 97–107.
Bradford, K.J. (1990) A water relations analysis of seed germination rates. Plant Physiology 94, 840–849.
Bradford, K.J. (1995) Water relations in seed germination. pp. 351–396in Kigel, J.; Galili, G. (Eds) Seed development and germination. New York, Marcel Dekker.
Cheng, Z. and Bradford, K.J. (1999) Hydrothermal time analysis of tomato seed germination responses to priming treatment. Journal of Experimental Botany 50, 89–99.
da Silva, E.A.A., Toorop, P.E., Nijsse, J., Bewley, J.D. and Hilhorst, H.W.M. (2005) Exogenous gibberellins inhibit coffee (Coffea arabica cv. Rubi) seed germination and cause cell death in the embryo. Journal of Experimental Botany 56, 1029–1038.
Ellis, R.H., Covell, S., Roberts, E.H. and Summerfield, R.J. (1986) The influence of temperature on seed germination rate in grain legumes. II. Intraspecific variation in chickpea (Cicer arietinum L.) at constant temperature. Journal of Experimental Botany 37, 1503–1515.
Finch-Savage, W.E. and Leubner-Metzger, G. (2006) Seed dormancy and the control of germination. New Phytologist 171, 501–523.
Gummerson, R.J. (1986) The effect of constant temperatures and osmotic potential on the germination of sugarbeet. Journal of Experimental Botany 37, 729–741.
Hu, X.W., Wu, Y.P. and Wang, Y.R. (2009) Different requirements for physical dormancy release in two populations of Sophora alopecuroides relation to burial depth. Ecological Research 24, 1051–1056.
Hu, X.W., Wang, J. and Wang, Y.R. (2012) Thermal time model analysis for seed germination of four Vicia species. Chinese Journal of Plant Ecology 36, 841–848.
Kigel, J. (1995) Seed germination in arid and semi–arid regions. pp. 645–700in Kigel, J.; Galili, G. (Eds) Seed development and germination. New York, Marcel Dekker.
Körner, C. (2003) Alpine plant life: functional plant ecology of high mountain ecosystems (2nd edition). Berlin–Heidelberg, Springer.
Michel, B.E. and Kaufmann, M.R. (1973) The osmotic potential of polyethylene glycol 6000. Plant Physiology 51, 914–916.
Nie, B. (2011) Characters of hard seed formation and release, methods for hard seed breaking in Vicia unijuga.
Norman, H.C., Cocks, P.S., Smith, F.P. and Nutt, B.J. (1998) Reproductive strategies in Mediterranean annual clovers: germination and hardseededness. Australian Journal of Agricultural Research 49, 973–982.
Qu, X., Baskin, J.M. and Baskin, C.C. (2010) Whole-seed development in Sicyos angulatus (Cucurbitaceae, Sicyeae) and a comparison with the development of water-impermeable seeds in five other families. Plant Species Biology 258, 185–192.
Thomson, J.R. (1965) Breaking dormancy in germination tests of Trifolium spp. Proceedings of the International Seed Testing Association 30, 905–909.
Tran, V.N. and Cavanagh, A.K. (1984) Structural aspects of dormancy. pp. 1–44in Murray, D.R. (Ed.) Germination and reserve mobilization. Sydney, Academic Press.
Trudgill, D.L., Squire, G.R. and Thompson, K. (2000) A thermal time basis for comparing the germination requirements of some British herbaceous plants. New Phytologist 145, 107–114.
Van Assche, J.A. and Vandelook, F. (2010) Combinational dormancy in winter annual Fabaceae. Seed Science Research 20, 237–242.
Wang, M.Y., Liu, W., Liu, K. and Bu, H.Y. (2011) The base temperature and the thermal time requirement for seed germination of 10 grass species on the eastern Qinghai-Tibet plateau. Pratacultural Science 28, 983–987.
Wang, Y.R., Nan, Z.B., Nie, B., Zhang, J.Q. and Zhang, J.Y. (2005) Distinct comparison of morphological characteristics for several new cold resistant Vicia sativa lines. Acta Prataculture Sinica 14, 28–32.