杉木良种扦插育苗试验

Cutting Seedling Test of Cunninghamia lanceolata

摘要: 为了研究杉木扦插育苗技术，本试验研究了不同激素种类及其不同浓度对杉木扦插苗的生根率、生根根数的影响；不同扦插时间对杉木扦插苗的成活率、苗高及地径生长量的影响。结果表明：在头年10月~翌年1月、2~5月，使用激素浓度200 mg/L~500 mg/L的NAA扦插杉木，成活率可达95%，平均苗均高达35.9 cm以上，平均地径达0.54 cm以上，苗木根系发达、粗壮，苗高适宜，最适上山造林。

Abstract: In order to study the cutting propagation technology of Cunninghamia lanceolata, this experiment studied the effects of different hormone types and their different concentrations on the rooting rate and rooting number of Cunninghamia lanceolata cuttings and the effects of different cutting time on survival rate, seedling height and ground diameter growth of Cunninghamia lanceolata cutting seedlings. The results showed that the use of 200 mg/L - 500 mg/L NAA in the period of Last October-January and February-May cutting of Cunninghamia lanceolata, the survival rate was 95%, the average height of seedlings was above 35.9 cm, the average diameter was above 0.54 cm, the seedling root was developed, the seedlings were thick and the seedling height was suitable, and it was most suitable for afforestation.