论文部分内容阅读
目的:了解长柱金丝桃形态变化、生长状况及人工繁殖技术。方法:利用现场观察记录形态的变化,测量长柱金丝桃的株高和直径,利用SPSS软件建立生长的数学模型;在人工栽培地进行有性和无性繁殖。结果:长柱金丝桃于每年4月末萌发,5月末出现分枝、6月末开花,8月初为盛果期,10月初种子成熟。株高、叶和分枝变化的Verhaulst模型分别为:H=127.109/1+23.7441×e-0.062t、L=23.343/+11.303×e-0.062t、B=22.037/1+73.068×e-0.068t。无性繁殖中整株移植成活率为100%,分株成活率为67.2%;有性繁殖中种子发芽率为15.2%,移苗成活率在36%。结论:长柱金丝桃生长发育期为4~10月,可以进行人工繁殖。
Objective: To understand the morphological changes, growth status and artificial propagation of long-column Hypericum. Methods: The changes of plant morphology were observed and recorded. The height and diameter of Hypericum perforatum were measured. The mathematical model of growth was established by SPSS software. Sexual and asexual reproduction was carried out in artificial cultivation. Results: Hypericum perforatum germinated at the end of April each year. Branches appeared at the end of May and flowered at the end of June. In early August, it was the full fruit stage and the seed was mature in early October. The Verhaulst model of plant height, leaf and branch changes were: H = 127.109 / 1 + 23.7441 × e-0.062t, L = 23.343 / + 11.303 × e-0.062t, B = 22.037 / 1 + 73.068 × e- 0.068 t. The survival rate of whole plant transplantation in asexual reproduction was 100% and the survival rate of ramets was 67.2%. The germination rate of seeds in sexual reproduction was 15.2% and the survival rate of transplanted seedlings was 36%. Conclusion: The long-column Hypericum grows from April to October and can be artificially propagated.