Abstract:

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’ reach to 89.67%, and ‘Mengeza 14’ reach 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 d; and the growth trend of cutting seedlings show “fast-slow-fast”, after transplanting 75 d, 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.