杜鹃红山茶的扦插扩繁研究

Study on Cuttage Reproduction Techniques of Camellia azalea

摘要: 杜鹃红山茶是一种珍稀濒危植物，其观赏价值高，花期长。为繁育该物种进行了扦插技术研究，结果表明，杜鹃红山茶插穗最好用1年生枝条；扦插于进口泥炭土 + 珍珠岩(1:1)混合基质的插穗生根率最高，达59.44%；插穗的生长状况与生长调节剂的种类、浓度密切相关，IAA 600 mg∙L⁻¹最有利于提高杜鹃红山茶扦插生根率，对根系的生长起着明显的促进作用。

Abstract: Camellia azalea was a rare and endangered plant. It had high ornamental value. Its florescence was longer than any other camellias’. The research on the cuttage reproduction of Camellia azalea showed that it was best to use 1-year-old branches as cuttings; the rooting rate was up to 59.44% on the mixed medium peat soils + perlite (1:1). The growth condition of the cuttings was closely related to the type and concentration of growth regulator. According to the statistics, IAA 600 mg∙L⁻¹ was the most beneficial to improve the shooting rate of Camellia azalea. It had obvious effect on promoting root growth.