陇蜀杜鹃种子发芽率的研究

A Study on Germination Percentage for Rhododendron Przewalskii Seeds

对陇蜀杜鹃(Rhododendron przewalskii)种子做了不同处理的发芽试验,结果表明:陇蜀杜鹃种子发芽的适宜温度为10℃～15℃;用纯乙醚,95％乙醇溶液及一定浓度的硫酸、盐酸、硝酸、氢氧化钠等处理种子后,均能显著地提高种子发芽率;不覆土播种较覆土3mm的发芽率高;种子贮藏19个月后的发芽率较贮藏7个月后的发芽率高.

Rhododendron przewalskii seeds were germinated under the conditions of different treatments. By statistical analysis, results showed that suitable temperature for Rhododendron przewalskii seed germintion is 10 - 15℃; After seeds were treated by 100% ether,95%ethanol solution and certain consistency H2SO4、HCl、HNO3、NaOH ect,the per cent of seed germination can be increased outstandly; germination percentage of seeds uncovered is higher than that of covered 3mm soil, the germination percentage of seeds stored 19 monthes is higher that of seeds 7 monthes.