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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (25): 229-233.

所属专题： 马铃薯

• 林学 园艺 园林 • 上一篇    下一篇

接种3种AM菌对盆栽木薯‘华南205号’的生长影响

苏凤秀 刘君昂 罗晓莹 朱鹏飞 卿贵华 周国英   

  • 收稿日期:2011-12-27 修回日期:2012-04-23 出版日期:2012-09-05 发布日期:2012-09-05
  • 基金资助:

    广西区青年科学基金

The Effects of AM Fungi on the Growth of Cassava

  • Received:2011-12-27 Revised:2012-04-23 Online:2012-09-05 Published:2012-09-05

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摘要：

为探讨丛枝菌根真菌作为薯类作物菌肥应用的可行性，以木薯作为供试作物进行优势菌肥的筛选，并研究其对菌根感染率和生长的影响。应用盆栽试验法，研究了3种AM菌种，包括根内球囊霉Glomus intraradices (Gi)、木薯球囊霉G. manihotis (Gm)和疣状无梗囊霉Acaulospora tuberculata (At)在单菌接种和混合接种条件下对木薯(Manihot esculenta)‘华南205号’生长的影响。初步研究结果显示，单菌接种处理中，Gm对木薯有较高的感染频率，菌根的形成对木薯的株高生长及茎的P含量吸收有较好的促进作用；Gi和At处理组对木薯的生长促进作用不明显。总体来说，混合接种处理2G和2G+At对木薯生长的促进作用优于单菌接种，2G处理在生物量累积方面和2G+At处理在菌根感染强度方面表现尤为出色。本实验结果揭示接种AM真菌对木薯产量的提高有一定的积极作用。

关键词: 发展策略, 发展策略

Abstract:

To investigate the possibility of using arbuscular mycorrhizal fungi on tuber crops culture, experiments were conducted with cassava as test crop to screen the advantageous fungi and to study the effects of AM fungi on the infection rate and the growth of cassava. The effects of AM fungi, including Glomus intraradices (Gi), G. manihotis (Gm) and Acaulospora tuberculata (At), on the growth of cassava by the pot culture method with single inoculum treatments and mixed inocula treatments were studied. The results showed that there was higher infective frequency and the growth of plant and the absorption of phosphorus in stem were improved by inoculating Gm in single inoculum treatments. The effects on the growth of cassava by inoculating Gi and At were not obvious. In general, the effects of mixed inoculua treatments of Gi and Gm (2G) or 2G+At were better than single inoculum, treatments, especially in biomass accumulation by inoculating 2G and infection intensity by inoculating 2G+At. The experimental results revealed that incoculation with AM fungi made positive contributions to improve the yield of cassava.