The invention relates to a cold-resistant excellent lance-leaved red anise strain
cutting propagation technology for
evergreen broad-leave
ornamental tree species illicium lanceolatum, which comprises the steps of sterilizing a
cutting pond; mixing mediums which consist of
peat soil,
pearlite, sand and
vermiculite according to volume ratio of 1:1:1:1, sterilizing a
seedling bed by using
potassium permanganate solution with concentration being 0.5 percent, sterilizing the mediums by using 50% Mildothane 800-time solution and keeping the thickness of
cutting mediums to be 30cm; selecting annual shoots at the middle part of the sunny side of a crown, keeping the length of the shoots to be 10cm to 12cm and cutting off one half of leaves at the top end of the shoots for cutting; using IAA50ppm+IBA50ppm to treat scions and soaking 3cm-long to 4cm-long lower part of the shoots for cutting for 24 hours; keeping cutting depth to be 4cm to 5cm, keeping cutting density with row spacing being 6cm * 8cm and using a sprinkling can to spray water to enable the shoots for cutting to be in full contact with the mediums; and arranging a sunshade net and an automatic spray device above the cutting pond to reduce illumination intensity and increase
air humidity, and in the first month after cutting, keeping
daytime relative humidity above 65 percent to 80 percent. The
survival rate of
cut shoots can reach 80 percent. By using the annual shoots and after
hormone treatment, the propagation of cold-resistant excellent lance-leaved red anise strains can be conducted rapidly, the method is simple, the operation is simple, the
survival rate is high and the like. The technology not only can provide technical supports and excellent strain seedlings for the popularization and the application of lance-leaved red anises which are
evergreen broadleaved ornamental trees, but also can provide references for the cutting propagation of the cold-resistant excellent strains of other trees.