不同处理方式对刨花楠种子萌发特性的影响研究

Effect of Different Treatments on Germination of Machilus pauhoi Seed

摘要: 研究了不同发芽床、不同浸种方式、不同加温措施和不同贮藏时间对刨花楠（Machilus pauhoi）种子萌发的影响。结果表明：4种不同发芽床中，珍珠岩是刨花楠最适发芽介质，种子发芽率达75.2%；不同浸种方式可提高刨花楠种子发芽进度，其中以100 mg/L GGR浸种处理效果最佳，第25天时发芽率可达18.8%；相比浙江省地方标准要求，25℃恒温处理种子发芽进度明显较快，尤其在第20天和第25天的以芽率为对照的3~4倍；贮藏时间对刨花楠种子萌发影响较为明显，不贮藏直接萌发，最终发芽率达75.2%，0 ~ 5℃贮藏10 d最终发芽率为52.4%，贮藏20 d最终发芽率下降至27.6%。

Abstract: Experiments were conducted on germination of Machilus pauhoi seed treated by different substrates, soaking in different solution, treated with different temperature and different storage time. The results showed that germination rate topped 75.2% on pearlite. Seeds soaked in 100mg/L GGR had germination rate of 18.8% in the 25th day. Seed treated with constant 25℃ had faster germination, especially in the 20th and 25th day, germination rate was 3-4 times than that treated with the local standard for temperature. Storage time had evident effect on germination rate. Seed without storage had germination rate of 75.2%, while with storage of 10 and 20 days at 0-5℃ had 52.4% and 27.6%.