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.在每日12小时光照周期、30/20℃条件下，尖叶新木姜子（Neolitsea acuminatissima）的新鲜种子萌发缓慢，需超过20周方可完成萌发过程。经4℃低温层积处理9个月或1年的种子，不仅保留了原有生活力，其萌发率还得到显著提升。新鲜种子具备发育完全的胚，且种皮与内果皮均具有透水特性，在温暖温度制度下需超过4周方可萌发。据此我们得出结论：尖叶新木姜子的种子具有非深度生理休眠特性。