提高防风种子发芽率的实验研究

目的：提高防风种子发芽率，加大黑龙江省地道药材防风的开发力度。方法：分别采用45℃温水浸种12、24h；150w微波辐射15s、20s、25s 30s；流水冲洗防风种子3—4h；柳枝浸出液为萌发剂培养防风种子，同时培养未经处理的种子作为对照组。结果：对照组发芽率为36．67％；温浸组为60．33％；微波15s组发芽率为68．00％，20s组为74．33％，25s组为71．17％，30s组为67．33％；流水组发芽率为84．00％；柳枝组发芽率为68．67％。结论：大规模播种可采用45℃温水浸种12-24h、150w微波辐射20s、流水冲洗3—4h、柳枝浸出液为萌发剂均可提高发芽势、发芽率，缩短发芽历期，改善出芽不齐等现象。

Studies on improving germination rate of Saposhnikovia Divaricata

Objective: To improve the germination rate( GR) of Saposhnikovia Divaricata ( Turcz. ) Schischk seeds. Methods: Soak the seeds in warm water( 45 ?? ) ( 12~ 24h) ( group 1) ; radiatewith microwave( 150w) for 15s, 20s, 25s, 30s respectively( group 2) ; rinse the seeds with running water ( 3~ 4h) ( group 3) ; soak the seeds with the lix ivium of willow branch( group 4) , at the same time, the unsettled seeds are treated as contrast( group 5) . Results: The GR of group 5 is 36. 67%; group 1 60. 33%; group 2 68. 00%( 15s) , 74. 33%( 20s) , 71. 17%( 25s) , 67. 33%( 30s) respectively; group 3 84. 00%; group 4 68. 67%. Conclusion: For large- scale sowing, the following meth?? ods can be used: soaking the seeds in warm water( 450C) for 12- 24 hours, radiating the seeds with microwave( 150w) for 20s, rinsing the seeds with running water for 3- 4h, and soaking the seeds with the lixivium of willow branches, which can increase vigour of germination and germina?? tion rate and improve the sprouting of the seeds.