沙棘遗传改良及繁殖栽培研究进展

沙棘是黄土高原及其周边地区的主要造林树种，掌握其遗传改良和繁殖栽培研究进展对沙棘资源建设具有指导意义。由于沙棘是多用途树种，因此其遗传改良涉及多个性状、栽培模式也因造林目的不同而异。近年来，通过以选为主以及选、引、育兼顾的系统遗传改良，获得了许多果实大、产量高、无棘刺的优良品种，同时在良种的繁殖和栽培技术研究方面取得了显著进展。今后，应加强生长性状和雄株的遗传改良、积极开展造林模式以及现有林分改造技术等方面的研究。

Research Progress on the Genetic Improvement and Silviculture of Seabuckthorn

It has guidance function to resource construction to master the research progress of genetic improvement and silviculture for Hippophae spp. , witch are the main plantation tree species in the Loess Plateau and its surrounding area. And the genetic improvement of the species relates to many properties and planting patterns because of multiple purpose and different silvicultural purpose. In re- cent years, a lot of varieties with Macro-fruit, high yield and without thorn have been obtained by system genetic improvement what includes selection, introduction and breeding. At the same time, the marked developing has also gained on the research of reproduction, propagation and silviculture. In the future, the growth properties and genetic improvement of male individual should be enhanced. Moreover, the studies should be actively developed at the aspect of planting patterns and reformation of existence stand.