花楸属植物繁育技术研究进展  

Research Progress on Breeding Technology of Sorbus L.

作　　者：陈刚 闫克林 王咏梅 CHEN Gang;YAN Ke-lin;WANG Yong-mei(Academy of Water Resources Conservation Forests in Qilian Mountain of Gansu Province,Zhangye Gansu 734000;National Center for Local Joint Engineering for Breeding andPromotion of Endemic Plants in Qilian Mountains)

机构地区：[1]甘肃省祁连山水源涵养林研究院,甘肃张掖734000 [2]祁连山特有植物繁育及推广国家地方联合工程研究中心

出　　处：《现代农业科技》2019年第24期110-111,共2页Modern Agricultural Science and Technology

基　　金：甘肃省祁连山特有珍稀树种保护繁育工程研究中心(甘发改高技〔2014〕1037号);祁连山特有植物繁育及推广国家地方联合工程研究中心(发改办高技〔2019〕180号);甘肃省林业科技计划项目“祁连山特有观赏树种天山花楸繁育技术研究”(2015kj012);甘肃省林业和草原科技计划项目“祁连山特有珍稀树种保护及树木园建园技术研究”(2018kj017)资助

摘　　要：花楸属植物具有较高的药用价值和观赏价值。国内外的文献研究显示,花楸属植物果肉、种子、去皮种子中均含有水溶性萌发抑制物质,种子的发芽率、出苗率不高,实生苗繁育的关键是播种前需经低温催芽,也可以采取植物激素诱导;采用吲哚丁酸(IBA)、萘乙酸(NAA)、植物生长调节剂GGR等植物激素诱导,能明显提高花楸属植物扦插的成活率;嫁接繁育不仅加快了天山花楸的成苗速度,还提高了观赏价值;组织培养育种周期短,利于商业化规模生产,是今后一个阶段需要突破的方向。The genus Sorbus L.plants have high medicinal and ornamental value.Literatures at home and abroad show that water-soluble germin-ation inhibitors are found in the pulp,seeds and peeled seeds of Sorbus L.,and the germination rate of seeds is not high.The key to seedling propagation is to germinate at low temperature before sowing,or to induce with plant hormones.The induction of plant hormones such as indolebutyric acid(IBA),naphthalene acetic acid(NAA)and plant growth regulator GGR can obviously improve the survival rate of cuttings of the genus Sorbus L.plants.Grafting breeding not only accelerates the seedling growth rate of Sorbus tianshanica Rupr.,but also improves the ornamental value.The breeding period of tissue culture is short,and it is conducive to commercial scale production,which is the direction to break through in the next stage.

关 键 词：花楸属 繁育 研究进展 

分 类 号：S792.25[农业科学—林木遗传育种]