欢迎访问《中国农学通报》,

中国农学通报 ›› 2016, Vol. 32 ›› Issue (7): 1-5.doi: 10.11924/j.issn.1000-6850.casb15090013

• 林学 园艺 园林 •    下一篇

沙生柽柳扦插生根过程及其插穗内源营养物质的变化

张锦春   

  1. 甘肃省治沙研究所
  • 收稿日期:2015-09-06 修回日期:2016-01-22 接受日期:2015-10-23 出版日期:2016-03-18 发布日期:2016-03-18
  • 通讯作者: 张锦春
  • 基金资助:
    :甘肃省基础研究创新群体“典型沙生植物生态适应性机制及其进化策略研究”(145RJIA335);国家自然基金项目“固定流沙先锋树种沙生柽柳无性繁殖生根机理研究”(31460069);甘国家科技支撑项目“甘肃民勤风沙运动监检测及沙化防治技术集成优化与示范”(2013BAC07B01)。

Cuttings Rooting Process and Changes of Endogenous Nutriments During the Rooting of Tamarix taklamakanensis

  • Received:2015-09-06 Revised:2016-01-22 Accepted:2015-10-23 Online:2016-03-18 Published:2016-03-18

摘要: 为了探讨沙生柽柳无性繁殖生根机理,在室内扦插培养的条件下,笔者对沙生柽柳扦插生根过程进行观察,并对插穗培育过程中的内源营养物质进行动态测定分析。结果表明:沙生柽柳插穗生根类型为皮部生根型,切口处未形成愈伤组织,不定根可突破插穗表面皮层而长出;沙生柽柳扦插生根过程中,可溶性糖含量先升高后降低最后呈现稳定的变化过程,可溶性蛋白质呈现平缓降低到加速升高的变化趋势;IBA可诱导沙生柽柳插条内源营养物质的形成,测定插条可溶性糖及可溶性蛋白质含量变化幅度明显高于对照;1 年生硬枝插条中可溶性糖与可溶性蛋白质含量变化幅度高于多年生老枝,这由枝条木质化程度及其代谢的强弱不同所致。

关键词: 植物, 植物, 静电场, 离子束, 紫外线, 微波, 激光, 生物效应

Abstract: In order to explore asexual reproduction rooting mechanism of Tamarix taklamakanensis, under the condition of indoor cuttings cultivation, the morphologic observations were conducted and changes of soluble sugar and protein content in Tamarix taklamakanensis cuttings during rooting were measured. The results howed that the cuttings rooting type of Tamarix taklamakanensis was primordiums rooting, there was no callus on the cut and adventitious roots grew from the surface layer of the cuttings. The soluble sugar content increased firstly, then decreased and became stable in the last during Tamarix taklamakanensis cuttings rooting process, in the meantime, the soluble protein content reduced gently firstly, then had an accelerated rise. IBA could induce the endogenous nutrients formation of Tamarix taklamakanensis cuttings, with the variation range of soluble sugar and soluble protein content was significantly higher than that of the comparison. The variation range of soluble sugar and soluble protein content of one year hard branch cutting was higher than that of the perennial old branch, which was caused by the difference of the branch lignification degree and their metabolism strength.

中图分类号: