【摘要】 以青海格尔木产黑果枸杞种子为材料,研究了不同采种时间的种子质量和发芽率,拱棚、覆盖、露地等不同育苗方式和0.3、0.6、0.9 cm等不同播种育苗覆土厚度对出苗的影响以及黑果枸杞幼苗生长规律,结果为不同采摘期所采种子质量与发芽率不同,8月中旬所采种子平均千粒重1.2 g,发芽率88.9%,优于10月上旬采集的千粒重(0.9 g)和发芽率(69.6%);不同育苗方式对出苗期、出苗率等有影响,拱棚育苗出苗早、出苗整齐、发芽率高,露地育苗出苗最晚、出苗最不整齐、出苗率最低,覆盖育苗介于之间;播种覆土厚度对播种出苗迟早和出苗持续时间有影响,对出苗率影响不显著,覆土越薄越有利;生产中应采取拱棚或覆盖育苗方式,覆土厚度0.3 cm;黑果枸杞1 a生幼苗高度、地径等生长分为3个时期即缓慢生长前期、快速生长中期、缓慢生长后期,缓慢生长前期幼苗弱小、抗逆能力弱,应注意洒水,适时盖、揭塑料拱棚或覆盖物等,保暖、保湿、遮阳。更多还原

【Abstract】 Lycium ruthenicum was studied regarding the quality and the germination rate of seeds collected at different time, the effect of different seeding depth and covering materials on emergence rate and seedling survival rate. Additionally, we observed the seedling growth rhythm and resistance. Results showed that seeds at different time of harvest were different in quality and germination rate, seeds harvested in middle of August had TKW(Thousand Kernel Weight) of 1.2 g and germination rate of 88.9%, superior to those harvested early October with TKW of 0.9 g and germination rate at 69.9%. Protected culture measure can have earlier germination, higher germination rate and uniform seedlings, superior to open field culture. Mulching measure generated effect between the two above. Thickness of covering soil during sowing would influence the time for germination but not influence the germination rate. Generally, the thinner of the soil covering, the better for early germination. In practice, protected culture or mulching plus soil covering about 0.3 cm were adopted. Lycium ruthenicum at 1 a would experience three stages of growth in height and stem: slow growing in early period, fast growing in middle period and slow growing in later period. During slowing growing in early period, the seedlings were small and weak to tolerate stress. Protected measures like spraying water and properly covering and opening greenhouse should be taken.更多还原