贵州铜仁地区油茶扦插繁殖试验

Study on Cutting Propagation of Camellia oleifera in Tongren District,Guizhou

为筛选出适合铜仁地区的油茶最佳扦插繁殖技术,采用不同处理对铜仁地区优良油茶品种进行了夏季扦插繁殖试验。结果表明,扦插基质以60%的黄心土+40%细砂为基质插条生根效果最好,生根率可达92.7%;在常用的生根促进剂中,ABT处理生根效果最好,生根率可达94.0%;NAA处理效果较差,生根率仅为78.0%。几种生根促进剂均能有效提高插穗生根率。生根剂不同浓度和处理时间以ABT100 mg/L处理2 h生根效果最好,生根率可达93.3%。

ABT, NAA, and IBA were applied for Camellia oleifera to screen the suitable cutting propagation technique in summer in this study. The results showed that the best cutting medium was 60% yellow subsoil ＋ 40% fine sand with 92.7% rooting rate. For the common rooting accelerators, ABT was the best with rooting rate of 94.0%, in contrast the effect of NAA was less, with 78.0% of rooting rate. Overall, all rooting accelerators could effectively improve the rooting rate of cuttings. In terms of concentration and treatment time, 100 mg/L ABT with 2 hours had best rooting rate of 93.3%.