| 刊名 | Agricultural Biotechnology |
| 作者 | Chunxiu GUO1,2,3*, Lide WANG3, Fanglan HE2,3, Qianyun ZHAO1,3, Dacheng SONG2,3, Zixuan WANG2,3, Fangyin HE1,3 |
| 作者单位 | 1.Key Laboratory of Desertification Combating, Gansu Province, Lanzhou 730070, China; 2.Gansu Hexi Corridor Forest Ecosystem Research Station, Wuwei 733000, China; 3. Gansu Desert Control Research Institute, Lanzhou 730070, China |
| DOI | DOI:10.19759/j.cnki.2164-4993.2025.06.013 |
| 年份 | 2025 |
| 刊期 | 6 |
| 页码 | 65-68 |
| 关键词 | Amygdalus tangutica; Introduction; cultivation; Germination rate; Growth; Arid desert area |
| 摘要 | [Objectives] Amygdalus tangutica is a new and excellent tree species for afforestation in arid areas of central China for soil and water conservation. It has the characteristics of drought resistance, cold resistance and tolerance to poor soil, and has strong ecological, landscape and economic value. To provide a theoretical basis for the propagation and application of A. tangutica in Minqin and similar arid sandy areas of Northwest China, this paper explored its introduction and cultivation technology through field experiments, considering the natural geographical conditions of the study area. [Methods] High-quality seeds were introduced from forest farms of Chankou Town, Anding District, Dingxi City, and Dian'ga Town, Diebu County, Gannan Prefecture, and the introduction and cultivation experiments of A. tangutica were carried out in the greenhouse of Wuwei Oasis Station. [Results] (1) Soaking treatment at different temperatures combined with gibberellin treatment and stratification germination could effectively break the dormancy of A. tangutica seeds, thereby accelerating germination and shortening the germination cycle. The germination peak appeared 15-20 d after sowing, and the final germination rate could reach about 50%. (2) In the introduction and cultivation of A. tangutica in arid areas, large fruit seeds with higher thousand-grain weight should be given priority. The emergence rate of large fruit seeds was significantly higher than that of small fruit seeds, with the highest reaching 57%, while the highest of small fruit seeds was only 20%. Soaking treatment at different temperatures had no significant difference in the germination performance and germination potential of A. tangutica seeds, but the germination index of large fruit seeds was higher than that of small fruit seeds. (3) Under the current conditions, seedling propagation is a reliable way to propagate A. tangutica in arid areas. The cutting propagation technology, particularly hardwood cutting which exhibits an extremely low survival rate, is not yet mature and is currently unsuitable for large-scale production. Consequently, future efforts should prioritize more in-depth research on softwood cutting techniques. [Conclusions] This study provides a theoretical foundation for the propagation and broader application of A. tangutica in Minqin and similar arid sandy areas of Northwest China. |
