沙棘硬枝的“饱水土培”扦插技术研究

Research of‘Water Saturated and Soil Culture’Technology of Hippophae rhamnoides Hardwood Cutting

应用创新的"三即时"、"饱水土培"技术措施,研究不同品种的沙棘硬枝插穗的生长调节剂应用、育苗基质对扦插成活率的影响,以及移栽时期与移栽成活率的关系,并且调查移栽后苗木的苗高和新梢长度,旨在为提高沙棘扦插成活率提供理论基础及技术支撑。结果表明:100mg/LABT生根粉浸泡4h处理对硬枝插穗效果最好,可使‘首都’扦插成活率达到89.67%,使‘蒙俄杂14’达到93.67%;田土+有机肥(3:1)作为扦插基质可以显著地提高硬枝扦插成活率,提高幅度最高达到50%;生根后20天扦插苗的移栽成活率最高;扦插苗呈"慢—快—慢"的生长趋势,移栽后75天,‘首都’和‘蒙俄杂14’的苗高分别达到23cm和19.5cm;新梢长分别为21.2cm和18.1cm。

The experiment applied the innovative ＇there instant＇ and ＇water saturated and soil culture＇ technology to study the effect of application of growth regulators, nursery substrate on the sea buckthorn hardwood cutting survival rate, and the relationship of transplanting date and transplanting survival rate, and investigated the height and shoot length of transplanted seedlings. Purpose is to improve the cutting survival rate of sea buckthorn and provide a theoretical basis and technical support. The results showed that there was significant treatment effect which hardwood cuttings were immersed in 100 mg/L ABT rooting-powder for 4 hours, which made the cutting survival rate of ＇Shoudu＇ reached to 89.67%, and ＇Mengeza 14＇ reached to 93.67%; field soil ＋organic fertilizer （3：1） as the nursery substrate can significantly improve the survival rate of hardwood cuttings; the increasing rate was highest increased 50%; there was the highest cutting survival rate when transplanting cutting seedlings after rooting 20 days; and the growth trend of cutting seedlings showed ＇fast-slow-fast＇, after transplanting 75 days, the height of ＇Shoudu＇ and ＇Mengeza 14＇ were 23 cm and 19.5 cm respectively, the new shoot length of ＇Shoudu＇ and ＇Mengeza 14＇ were 21.2 cm and 18.1 cm respectively.