杜鹃花的种子繁殖

SEED PROPAGATION OF RHODODENDRON

本文探讨了杜鹃花Rhododendron的种子繁殖。试验中系统地观测了在昆明黑龙潭地区杜鹃花的种子的生长发育特性。研究结果表明:杜鹃花种子发芽率的高低及幼苗的生长与播种时间、播种基质及温湿度相关。杜鹃花的播种时间以3—5月份为宜;比6-8月播种的种子发芽率高20％—30％;播种基质以腐叶土和腐叶土+山土(1:1)为佳;播种的适宜气温为9℃—28℃,空气湿度为60％—75％;基质温度为6.7℃—25℃,基质含水量为30％—40％。

Seed propagation of Rhododendron was researched in this paper. The character istics of seedling's growing of Rhododendron was observed in kunming. The result shows that height and low per cent of seed germination of Rhododendron and seedling's growing are with relation to time of sowing, media of sowing and temperature, humidity. The best sowing time is March to May; the per cent of seed germination in March to May is more 20-30% than June to August, The best media of sowing is leaf mould and leaf mould+gray forest soil (1 : 1); the suitable temperature of sowing is 9℃-28℃. The air humidity is 60-75%. The temperature of sowing media is 6.7-25℃, the humidity of media is 30-40%.