短蔓型甘薯品种‘赣薯2号’茎蔓穴盘育苗技术研究  

Technique of Plug Seedling Production of Short Vine Type Sweet Potato Variety ‘Ganshu No.2'

作　　者：刘小三[1] 叶川[1] 肖小军[1] 李涵 李亚贞[1] 郑伟[1] 吕伟生 黄天宝[1] 肖富良 吴艳[1] 肖国滨[1] Liu Xiaosan;Ye Chuan;Xiao Xiaojun;Li Han;Li Yazhen;Zheng Wei;Lv Weisheng;Huang Tianbao;Xiao Fuliang;Wu Yan;Xiao Guobin(Red Soil Institute of Jiangxi Province,Jinxian Jiangxi 331717)

机构地区：[1]江西省红壤研究所,江西进贤331717

出　　处：《中国农学通报》2018年第20期34-39,共6页Chinese Agricultural Science Bulletin

基　　金：江西省科技成果转化与推广应用项目"水果型甘薯新品种‘赣薯2号’示范推广"(20161BBI90039);江西省现代农业科研协同创新项目"薯类作物协同专项"(JXXTCX201704)

摘　　要：研究不同茎蔓节段育苗的效果,探索优质、高效的甘薯育苗新方法。以短蔓型‘赣薯2号’茎蔓为试验材料,设置单节、双节和顶芽带三节3个苗段,分别通过红壤土、腐叶土和塘泥3种土壤基质进行穴盘育苗,观察各处理育苗方式下薯苗生长、发苗天数等相关性状,并考察其叶数、苗长、根数及根长情况。结果表明:以双节苗段+腐叶土处理的茎蔓发苗时间最快(3天),成活率最高(86.6%),发根数最多(9.2根),根长最长(5.9 cm)。因此,甘薯茎蔓双节苗段+腐叶土穴盘育苗具有发苗时间短、成活率高、成本低等特点,短期内(20天)可达成苗标准,提高了甘薯扩繁系数和育苗速度,值得推广应用。The aim is to study the effect of different vines＇ cuttings and develop a new method for high-qualityand high-efficiency sweet potato seedlings. The vine of short vine type‘Ganshu No.2＇was used as thematerial, three seedling sections, including single node, two nodes and top buds with three nodes, were set up.Plug seedling production was conducted with red soil, leaf mud and pond mud. The seedling growth andseedling days and so on were detected with different seedling raising methods. The growth of leaf number,seedling length, root number and root length were also detected. The results showed that two nodes with rottenleaf soil had the fastest vine sprouting of 3 days, the highest survival rate of 86.6%, the most root number of9.2, and the longest root length of 5.9 cm. The treatment of two nodes with rotten leaf soil had the advantagessuch as short sprouting time, high survival rate, low cost and so on. The seedling standard was accomplishedwith short time（20 days）, and the propagation coefficient and seedling speed were increased. Therefore, thetreatment of two nodes with rotten leaf soil is worth to be popularized.

关 键 词：赣薯2号 茎蔓 单节苗段 双节苗段 顶芽带三节苗段 穴盘育苗技术 

分 类 号：S531[农业科学—作物学]