刺槐接种VA菌根真菌与环境条件的关系

应用生态学报 ›› 1992, Vol. 3 ›› Issue (4): 389-391.

刺槐接种VA菌根真菌与环境条件的关系

苏凤岩, 徐卿德, 李维光, 雷启迪

中国科学院沈阳应用生态研究所, 沈阳 110015

收稿日期:1991-04-29 修回日期:1992-04-09 出版日期:1992-10-25 发布日期:1992-10-25
基金资助:
国家“七五”攻关项目

Relationship between Robinis pseudoacacia inoculated with vesicular-arbuscular mycorrhizal fungus and environmental condition

Su Fengyan, Xu Qingde, Li Weiguang, Lei Qidi

Institute of Applied Ecology, Academia Sinica, Shenyang 110015

Received:1991-04-29 Revised:1992-04-09 Online:1992-10-25 Published:1992-10-25

摘要/Abstract

摘要： 国内外众多的试验表明,VA菌根真菌侵染植物根系后,促进植物对养分吸收和物质转化,从而大幅度增加寄主生物量,但也有试验表明,接种VAMF后,寄主生物量并无明显增加,这可能与菌根接种物本身的特点及外界条件有关,其中土壤中磷的含量是重要因素之一。据报道,土壤P过高,对菌根的形成有影响。本文就刺槐接种VAMF,在不同立地环境下寄主生长变化及不同施磷量对VAMF侵染能力、孢子产生量、植株生物量等进行了研究。

Abstract: After inoculated with vesicular-arbuscular mycorrhizal fungus(VAMF),the growth of R. pseudoacacia,its infection ability and spore number are varied with soil condition and phosphorus application rate. In a pot experiment applicated with P, the host plant biomass and infection rate are higher when the total Pcontent in soil is 0.073%, but decreased markedly,when the Pcontent is up to 0.08%. More spores are found at 4-6cm depth of rhizosphere soil when the soil total Pcontent is 0.076%. In an inoculated drab soil, the infection rate of seedlings at 3 months old is 65.8%, but their biomass is not significantly increased. After forestation with inoculated seedlings on an infertile hilly land, the biomass of host plant at 5 months old is increased by 17.6%.

Key words: Robinia pseudoacacia, Vesicular-arbuscular mycorrhizal fungus, Inoculation test, Environmental effect

苏凤岩, 徐卿德, 李维光, 雷启迪. 刺槐接种VA菌根真菌与环境条件的关系[J]. 应用生态学报, 1992, 3(4): 389-391.

Su Fengyan, Xu Qingde, Li Weiguang, Lei Qidi . Relationship between Robinis pseudoacacia inoculated with vesicular-arbuscular mycorrhizal fungus and environmental condition[J]. Chinese Journal of Applied Ecology, 1992, 3(4): 389-391.