摘要
为了探索适合迪庆州开展的大花红景天育苗技术,进行了赤霉素(GA_3)溶液处理种子、播种方式、根茎扦插等试验。结果表明,800mg/L和1 000mg/L浓度的赤霉素溶液处理种子,种子发芽率和发芽势最大;以0.5g/m^2的播种量,条播的方式进行播种,覆土厚度0.1cm,出苗率、壮苗数最大,出齐苗时间最短;种子从出苗到停止生长新叶的期间,生长速度逐渐加快;根茎扦插时应采用较低的扦插密度。为促进幼苗健壮生长,在进行大花红景天播种、扦插育苗时,需要加强人工管理,适时合理施用磷钾含量较高的复合肥,及时进行间苗和除草。
In order to exploring Rhodiola crenulata nursery technology of Diqing,we have done the gibberellin( GA_3) treated seed,sowing,collum cutting tests. Results showed that,800mg/L and 1 000mg/L concentration of gibberellin solution processing seed,can effective improve seed germination and germination potential. Seeding rate of 0. 5g/m^2,drills for sowing,soil thickness 0. 1cm,could have a higher germination rate and seedling number and a faster align time. Seedling growth is gradually accelerating during sprouting to the growth of new leaves stop; Collum cutting at lower density could obtain more robust seedlings. When use seeds and collum to seedling,to promote Rhodiola crenulata seedling growth,it is needed to strengthen management and reasonable application of high content of phosphorus and potassium fertilizer at the right time,and thinning and weeding manner timely.
出处
《西部林业科学》
CAS
2017年第4期133-137,共5页
Journal of West China Forestry Science
基金
迪庆州科技计划项目社会发展类(2013S03)
关键词
大花红景天
迪庆州
育苗技术
Rhodiola crenulata
Diqing
seedling technique
