黄芪种子萌发特性的研究

Germination Characteristics of Astragalus membranaceus Seeds

运用室内测定方法,对黄芪野生种子和栽培种子的吸水率及其不同处理下的种子发芽率进行了比较试验,结果表明,采用砂磨方法可使黄芪种子的萌发率明显高于其它方法,黄芪种子种皮的机械抑制是导致发芽率低的直接原因;黄芪种子在2 3℃/15℃变温条件下的萌发率高于其它温度条件下的萌发率;不同采收期也会通过影响种子的成熟度而影响发芽率.

The water absorptions of the seeds of wild and domesticated Astragalus membranaceus and the germination rates of Astragalus membranaceus seeds under different treatments were indoors measured and then compared,which denoted that the Astragalus membranaceus seeds rubbed with sand germinated at a remarkably higher rate than the seeds treated in other ways and thus it followed that the mechanical inhibition resulting from the testa of Astragalus membranaceus seeds was the direct reason why Astragalus membranaceus seeds germinated at a low rate;Astragalus membranaceus seeds under the alteration treatment of 15℃ and 23℃ germinated at a higher rate than those under other temperature treatments did;Different harvesting dates could exert influence on seed germination through affecting seed maturity.