Research On Key Techniques Of Seedling Raising Of Wild Ornamental Flowers Enkianthus Quinqueflorus

Enkianthus quinqueflorus,also known as bellflower,belongs to the azalea family(Ericaceae)and is a rare scarce alpine azalea species.In this study,we conducted in-depth research on Enkianthus quinqueflorus expansion and breeding techniques,cultivation techniques,and Enkianthus quinqueflorus forest management techniques by conducting experiments such as seedling cultivation,cutting seedling cultivation,circle seedling cultivation,bead seedling cultivation,and large tree transplantation.Provide technical support for production applications.The result shows:(1)Through plot analysis,it is found that the coefficients of variation of plant height and ground diameter of the overall plot and each plot are small,22%-36%;the coefficient of variation of crown width and branch number is large,84%-103%,indicating hanging The plant height and ground diameter of Enkianthus quinqueflorus grow relatively stably,and the crown width and branch number growth vary greatly.The genetic diversity of the natural population of Enkianthus quinqueflorus in the forest park is relatively rich,which can provide important support for the future selection of superior tree selection and breeding of Enkianthus quinquefloruss.(2)Through seedling cultivation,the number of single fruit seeds and 1000-grain weight of single bell seedlings per plant are significantly different,and the germination rate is low.The survival rate of 2-year-old shoots is the highest,reaching 80%;except for4-year-old shoots,the germination rate of other shoot-age shoots is basically the same,not exceeding 40%;2-year-old shoots are most suitable for beading.(3)Through cutting seedling cultivation,the transpiration effect of the Enkianthus quinqueflorus branch is small,so the survival rate of the branch that retains the leaf during cutting is the highest,the survival rate of the branch cutting is 10.52% and the sensitivity of the branch to the rooting water is not strong,the most suitable rooting water The concentration is 50 ppm.Therefore,the best combination of planting seedlings for Enkianthus quinqueflorus cuttings is to use formula three(peat soil 45% + perlite 45% +yellow heart soil 10%)as the cutting substrate,choose 1-year-old branch-age branches,simply trim mature leaves,and retain youngness Leaves,soak in 50 ppm rooting water for30 min.(4)Through bead seedling cultivation,the smaller the branch age and branch thickness of the Enkianthus quinqueflorus,the higher the germination rate,and the survival rate is not related to the size of the branch age;it is more reasonable to use 1/3 ring cutting.Therefore,the best bead processing method is to select two-year-old branches with a branch thickness of 0.3 cm for 1/3 ring cutting treatment.(5)Through circle seedling cultivation,yellow heart soil is a good root-promoting medium,the survival rate and germination rate of branches are better,and the germination effect of formula two is better,but the survival rate of branches is lower and the compaction rate is higher.Therefore,the best treatment method for circle branches obtained by single-factor comparison test is to select 2-year-old branches,cut 1.5 cm,dry six angel wounds to form callus tumors,and then bandage with yellow heart soil.(6)The transplanting test of bell tree shows that the overall survival rate and preservation rate of transplanting are low,but as long as the measures are taken properly,the Enkianthus quinqueflorus can survive from higher altitude(about 500m)to low altitude.