南美油藤播种育苗技术 - 中国桉树.pdf

第32 卷 第4 期 桉树科技 Vol.32 No.4 2015 年12 月 EUCALYPT SCIENCE TECHNOLOGY Dec.2015 南美油藤播种育苗技术 尚秀华，高丽琼，张沛健，陈鸿鹏，彭 彦＊ ( 国家林业局桉树研究开发中心，广东 湛江 524022) 摘要：以南美油藤种子为对象，研究不同品种、气温、播种基质对其发芽情况的影响。结果显示：细沙以及珍珠 岩+泥炭两种基质不利于南美油藤种子发芽，轻型基质(黄心土：稻壳：珍珠岩=3:4:3)可使其发芽率超过90%；不 同品种的南美油藤种子发芽率差异显著，C 和H 两个大果种子不发芽，V2 和V4 发芽率低于15%，V3 发芽率可达 90%；不同气温影响南美油藤种子发芽率，以气温25 ~ 35℃播种为宜。 关键词：油藤；种子；发芽率 中图分类号：S604 文献标识码：A Growing Techniques of Plukenetia volubilis Seedlings SHANG Xiu-hua, GAO Li-qiong, ZHANG Pei-jian , CHEN Hong-peng, PENG Yan (China Eucalypt Research Centre, Zhanjiang 524022, Guangdong, China) Abstract : Germination of seeds of different varieties of Plukenetia volubilis was examined with different growing media and temperatures in this study. Media comprising pure sand or perlite+peat was not conducive germination (0% germination) but over 90% germination was achieved with a growing media comprising yellow soil:rice-husk:perlite (3:4:3). Seeds of the five P. volubilis varieties tested also differed significantly in their germination rates; varieties C and H, which on average had the biggest seeds, didn’t germinate at all, varieties V and V had low average germination rate of 15%, whilst germination of variety V averaged more 2 4 3 than 90%. Temperature was found to impact germination rates of the P. volubilis seed, and the optimum o temperature was found to be in range of 25 to 35 C.