关键词: 抗性指数, 抗性指数

Abstract: Lilium speciosum var. gloriosoides, which is widely distributing in Zhejiang Province and some other domestic areas.The seeds of induction and germination medium adding different concentration of hormones were studied, the MS basal medium without any hormones was used as control. The germination rate, shoot induction rate,,number of shoots inducted were measured growth of plantlets were observed during the experiment Besides, the seeds gernated plantlets were analyzed using the conventional chromosome preparation in this paper. The results showed that medium adding hormones could enhance the germination rate significantly, the optimum medium was MS media supplemented with 6-BA 1.0 mg.L-1 and NAA 0.1 mg.L-1，the germination percentage, induction rate and average indefinite buds were 88.3%,88.9% and 2.5, respectively. Seeds without peeling treatment did not germinate after inoculating 30 days at all. The seedlings growing 60 days were transferred to MS medium, the growth condition sustained as before. More than 93% seeds belonged to epigeal germination style, only some seeds inoculated only in high concentrations 6-BA(about 1.0 mg.L-1) and low concentration NAA(about 0.1～0.2 mg.L-1) displayed a hypogeal germination styles. The ploidy levels of seeds induction plantlets were diploid(2n=2x=24), and no genetic variation was found.