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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (10): 108-112.

• 林学 园艺 园林 • 上一篇    下一篇

AM真菌接种剂与栽培基质对牡丹容器苗丛枝菌根侵染的影响

曾端香 袁涛 王莲英   

  • 收稿日期:2011-03-21 修回日期:2011-04-02 出版日期:2011-05-15 发布日期:2011-05-15

The Effects of AM fungus and Culture Substrates on Colonization of Arbuscular Mycorrhizal for Tree Peony Container Seedling

  • Received:2011-03-21 Revised:2011-04-02 Online:2011-05-15 Published:2011-05-15

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摘要：

为了探索AM真菌（AMF）在牡丹种苗生产和观赏栽培中的合理应用，更好地利用其优势AM真菌菌种资源，培育优质牡丹菌根化容器苗，笔者以牡丹（Paeonia suffruticosa）容器苗为接种对象，设计筛选AM真菌接种剂、接种期和栽培基质最佳组合。结果表明：AM真菌接种剂对牡丹丛枝菌根形成均有显著影响，以Glomus geosporum（Gg）和Glomus mosseae（Gm）混合接种剂在第3剂量水平下效果最显著；随着株龄增大，丛枝菌根侵染效果显著降低，当年生苗侵染率、侵染强度、丛枝着生率、侵入位点数与菌丝长度均最高，分别为94.64%、13.2、51.8%、6.3个/mm根长、9.58 m/g干土，均显著地高于1年生苗、2年生苗和3年生苗；在备选的4种栽培基质中，以泥炭:珍珠岩:河沙（1:1:1）基质最合适，在接种后112天时侵染率、侵染强度、菌丝长度最高，分别为90.20%、22.50和2.2 m/g干土，均显著（P＜0.05）大于其他基质。因此，以当年生牡丹容器苗接种Gg+Gm，以及采用泥炭:珍珠岩:河沙（1:1:1）栽培基质最佳。

关键词: 毛竹, 毛竹, 辐照, 防霉性能, 尺寸稳定性

Abstract:

In order to make use of dominant species of AMF on seedling production and ornamental culture of tree peony, and cultivate high quality container seedlings and potted flowers, the effects of species and dose of AMF, culture substrates, and age of plant on colonization of arbuscular mycorrhizal for tree peony container seedling were investigated. The colonization frequency and intensity of Glomus geosporum (Gg) mixed Glomus mosseae (Gm) at level 3 holded the highest among all treatments. Colonization frequency, colonization intensity, abusculars rate, entry points and hyphal length of annual seedlings holded the highest, which were 94.64%, 13.2, 51.8%, 6.3 point/mm root length and 9.58 m/g dry soil, respectively. They decreased with the age of plants. In the 4 cultivating substances, there was a significant difference among turf: perlite：sand (1:1:1) with other media among colonization frequency (90.2%), colonization intensity(22.50) and 12.2 m/g dry soil. So, it was optimal that annual seedlings inoculated with Gg+Gm were cultivated in substrates for turf: perlite: sand (1:1:1).