The invention discloses a method for plug-tray greenwood
cutting seedling culture of rhododendron ovatum. A semi-lignified
twig grown in a current year is clipped and taken as a
cutting, and a cuttingshoot is clipped from the
cutting and soaked in an ABT
reagent of concentration of 50-100 mg / L for 4-6 h; after soaking, the cutting
shoot is inserted into a
seedling culture plug tray for cutting, thorough watering is conducted immediately after cutting, a sterilizing agent is sprayed, and the
seedling culture plug tray is coated with a thin film and shielded; and then, watering is conducted incase of
dryness, and
transplantation can be conducted when an
axillary bud of the cutting
shoot germinates and a new root of the cutting
shoot grows to 1-3 cm. In this way, the method can greatly increase a cutting rooting rate of rhododendron ovatum, can increase a cutting
survival rate of rhododendron ovatum to about 73.33%, can save a matrix and space of seedling culture, does not need establishment of a dedicated arc shed, realizes good
moisture preservation effects, does not need frequent water supplementation, is simple and easy in operations, low in production cost and high in economicbenefits, can promote
transplantation survival and has a high application value.