浸种时间与播种密度对半枫荷种子萌发和幼苗生长的影响

Effects of Soaking Time and Seeding Densities on Germination and Growth of Semiliquidmbar cathayensis

摘要: 为提高半枫荷苗木质量，通过浸种时间与播种密度对半枫荷种子萌发和幼苗生长影响研究。种子萌发试验以半枫荷的种子为材料，设置0 h、12 h、24 h、48 h、60 h共计5种浸种时间处理，观察记录半枫荷种子的场圃发芽率和发芽势；播种密度试验以半枫荷种子为材料，设置280粒·m^-2、66粒·m^-2、44粒·m^-2、33粒·m^-2共4种不同播种密度，测量1 a生半枫荷幼苗苗高、地径、主根长、一级侧根数及生物量。研究结果表明：半枫荷种子的适宜浸泡时间为48 h，结合半枫荷苗木的质量和数量，半枫荷的适宜播种密度为44粒·m^-2。

Abstract: To improve the quality of Semiliquidmbar cathayensis seedlings, the effects of soaking time and seeding density were studied on seed germination and seedling growth. A total of 5 kinds of immersion time were set in 0 h, 12 h, 24 h, 48 h, and 60 h to observe the germination rate and germination potential of the field garden. A total of 4 different seeding density were set with 280 plants·m^-2, 66 plants·m^-2, 44 plants·m^-2 and 33 plants·m^-2 to Measure seedling height, ground diameter, main root length, primary lateral root number and biomass of annual seedlings. The results showed that the suitable soaking time of seeds was 48 h, combined with the best quality and quantity of seedlings, and the suitable seeding density was 44 plants·m^-2.