Seed dormancy and germination in Neolitsea acuminatissima (Lauraceae)

Fresh seeds of Neolitsea acuminatissima germinated slowly at 30/20oC in light (12 h daily photoperiod) and required > 20 wk to complete germination. Seeds cold-stratified at 4oC for 9 mo or for 1 y not only retained their original viability but germination rate increased significantly. Fresh seeds have a fully-developed embryo and a water-permeable seed coat and endocarp, and they require > 4 wk to germinate at a warm temperature regime. Thus, we conclude that seeds of N. acuminatissima have nondeep physiological dormancy.