摘要
以穿龙薯蓣种子为试材，研究低温和赤霉素处理对种子的活力和休眠特性的影响，播种的覆土适宜深度和幼苗的适宜光照强度。结果表明：种子-5℃冷藏20d即可打破休眠，赤霉素对种子休眠的解除有一定的促进作用。对低温解除休眠的种子，其幼苗长势较强。播种覆土以1．5～2．0cm为宜，7，O％透光率有助于幼苗生长。
The Dioscorea nipponica＇s seed was used as experimental matirials, to study gibberellin and low temperature to the influence of the characteristic of the seed vigor and dormancy, and the suitable depth of sowing, suitable illumination intensity of seedling. The results showed that it took above 20 days to relieve dormancy at --5℃, the gibberellin has a little effect on promoting dormancy-relieving. The seeds which relieved dormancy grow better. It was suitable to sow at a depth of 1.5-2. 0 cm, the seedling can grow better at the 70% transmittancy.
出处
《北方园艺》
CAS
北大核心
2010年第11期199-201,共3页
Northern Horticulture
基金
黑龙江省科技攻关资助项目(GB07C322)
关键词
穿龙薯蓣
种子
育苗
Dioscorea nipponica
seed
raise seedling
