花榈木人工种子胶囊制作及其萌发效果研究  

Study on the Preparation and Germination of Artificial Seed Capsule for Ormosia henryi

作　　者：吴高殷 韦小丽[1,2] 王晓 桂平 Wu Gaoyin;Wei Xiaoli;Wang Xiao;Gui Ping(College of Forestry,Guizhou University,Guiyang Guizhou 550025,China;Institute for Forest Resources&Environment of Guizhou,Guiyang Guizhou 550025,China;College of Life Science,Guizhou Normal University,Guiyang Guizhou 550025,China)

机构地区：[1]贵州大学林学院,贵州贵阳550025 [2]贵州省森林资源与环境研究中心,贵州贵阳550025 [3]贵州师范大学生命科学学院,贵州贵阳550025

出　　处：《西南林业大学学报（自然科学）》2022年第3期10-17,共8页Journal of Southwest Forestry University：Natural Sciences

基　　金：贵州省高层次创新人才培养计划项目((2016)5661)资助;贵州省林业厅项目(黔林科合(2010)重大02)资助;国家自然科学基金项目(31460193)资助。

摘　　要：为筛选优良物理性质人工种子胶囊的制作方法和附加物,设计 3 种人工种子胶囊的制作方法和 5 种附加物,并以 4 组植物生长调节剂和 5 个低温贮藏时间对花榈木人工种子进行萌发诱导,分析不同植物生长调节剂和低温贮藏时间对花榈木人工种子萌发的影响。结果表明:双层包埋法较单层包埋法和空心珠法是制作人工种子胶囊较好的方法。其中双层包埋法人工种子胶囊中添加保水剂,初始质量、直径、长径、硬度和复水指数上较活性炭、纳米 SiO;、纳米 TiO;和壳聚糖高,且失水率低;综合评价得分以添加 20 g/L 保水剂的人工种子胶囊最高。4 组植物生长调节剂影响花榈木人工种子萌发率,但差异不显著。花榈木人工种子萌发率随低温贮藏时间的增加呈逐渐下降趋势。可见,人工种子胶囊的物理性质受制作方法和附加物的影响,其中双层包埋法人工种子胶囊以添加20 g/L 保水剂的物理性质最好,花榈木人工种子含水量高、不透气和长时间低温贮藏可能是造成其萌发率低的原因。In order to screen the making methods and additives of artificial seed capsules with excellent physical properties, and study the effects of plant growth regulators and low-temperature storage time on the germination of artificial seeds in Ormosia henryi. Three kinds of making methods and 5 kinds of additives of artificial seed capsules were designed in this experiment. Four combinations of plant growth regulators and 5 low-temperature storage time were used to induce the germination of artificial seeds. The findings indicated that double-layer embedding method was better than single-layer embedding method and hollow beads method. The initial weight diameter, length, hardness and rehydration index of the artificial seed capsules with water retaining agent were higher than those of activated carbon, nano-SiO;, nano-TiO;and chitosan, and the water loss rate was lower. The comprehensive evaluation score of the artificial seed capsules with 20 g/L water retaining agent was the highest Four combinations of plant growth regulators affected the germination rate of artificial seeds in O. henryi, but the difference was not significant, the germination rate of artificial seeds decreased with the increase of low temperature storage time in O. henryi. The physical properties of artificial seed capsules were affected by the making methods and additives. The physical properties of artificial seed capsules in double-layer embedding method supplemented with 20 g/L water retaining agent was the best. The high water content, airtight and long time low temperature storage of the artificial seed capsule in O. henryi may be the reasons for its low germination rate.

关 键 词：花榈木 种子 双层包埋法 萌发率 低温贮藏 

分 类 号：S723.13[农业科学—林木遗传育种]