摘要
为了解决中国沙棘果实小、产量低、棘刺多等问题,榆林市林业站先后引进大果沙棘品种16个。栽培试验结果表明,大部分品种在引入后生长良好、繁殖正常,没有发现早衰现象或严重的病虫危害,同时保持了果实大、产量高、无刺或刺少等优良特性。其中,果实横径5.06mm～6.51mm、纵径7.46mm～10.33mm,向阳、齐棘1号等9个品种的果实产量达到10000kg/hm2以上,单株平均拥有克隆子株2.0～5.0株,混合种子的生活力达95%。
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 recent 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.
关键词
大果沙棘
生长情况
果实特征
繁殖能力
榆林地区
Hippophae rhamnoides
genetic improvement
reproduction technology
planting patterns
