红花桉种子繁殖研究

对红花桉 ( Eucalyptusficifolia.F.Muell.)的种子发芽与育苗技术进行了研究。结果表明 ,种子为黑色类型的发芽势最高 ,为 4 8% ;发芽率为 75% ,种子的质量最好。播种时间最好在 4～ 5月份 ;播种采用种子基部直立向下插入基质中 ,然后覆盖土 0 .5cm的方法可提高出苗率。它生长最快的时间是在 7～ 8月份。培育红花桉最好的基质配方是 :腐叶土∶砂∶红土∶滇池草炭 =1∶ 1∶ 1∶ 1。

The seeding propagation technic of Eucalyptus ficifolia

Various ways of raising Eucalyptus ficifolia F. Muell. seedlings were studied. The results showed that the black seeds had the highest germination energy percentage,which was 48% and their germination percentage was 75%. The black color seeds were the best quality seeds compared with other color types of seeds. The optimum seed sowing period is between April and May. To sow seeds in upright position and cover with 0.5 cm soil resulted the highest percentage of germination. The fast growing period of Eucalyptus ficifolia in Kunming is between July and August. The best medium for growing Eucalyptus ficifolia is a mixture of humus,sand,red soil and peat(1∶1∶1∶1).