Effects Of Plant Growth Promoters On Cutting And Burying Of Common Shrubs In The Slope Greening Of North China Expressway

This study based on the North Highway Slope shrub of fast-growing, in Jiufeng surrounding Beijing and other field outside the industry investigated the five North China area, a common shrub, respectively, thin wood, Caryopteris mongolica, Amorpha fruticosa, shrubby Clematis lotus, and the vine plants Parthenocissus. And in the cutting tests by applying growth regulators, respectively, the concentration of 500 mg/L and 1000 mg/L NAA and IBA treatment and clean water as control of plant growth promoter of five plant species effects; in buried test strip applied to urge branch bud). According to observation data and statistical results showed that plant growth promoter of five plant species buried impact. The results are as follows.(1) Cutting experiment:five North China area, a common plant in under the influence of naphthaleneacetic acid (NAA) and indole butyric acid (IBA) survival:thin wood suitable growth promoter type and concentration of 500mg/L NAA, survival rate averaged 64.67%; suitable Caryopteris mongolica growth promoter type and concentration of 500mg/1 NAA, the survival rate of average achieved 51.33%; Amorpha fruticosa Huai suitable growth promoter type and concentration of NAA 500mg/L and IBA 500mg/L, survival rate averaged 41.33%; shrubby Clematis suitable growth promoter type and concentration of 500mg/L NAA, survival rate averaged 31.33%; Parthenocissus appropriate growth of different kinds of accelerators and NAA concentration 500mg/L, survival rate of average was 72.67%.(2) Burying test:five North China area of common plants in 30 days, urge branch bud factors, in different conditions (with root or not, buried depth of survival was obtained by applying push branch sprout element groups of germination rate were higher than no applied urged branch sprout element groups, primed branch of plant was buried survival promoting effect; with root seedling bury group was higher than that of without root buried a group, take root and plant survival important factor; whether burying depth is 5cm,10cm,15cm were germinated plants were also not germination of plants, and the germination time also has that burying depth of burying germination has no direct impact.