Author_Institution :
Coll. of Forestry, Central South Univ. of Forestry & Technol., Changsha, China
Abstract :
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
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Mycorrhiza fungi shows important effect on enhancing plants´ ability of absorbing water and mineral nutrition, it can improve resistance to drought, salinization and diseases, promote the growth of plant, and also can improve the tolerability of plants to the toxic pollution, conserve of soil against erosion, enhance the soil activities and the productive forces. So exploitation and utilization of mycorrhiza fungi will be an important technology of high yield and quality, effective construction for forest product. However as one of the important economic forest species in southern China, it had little report about the mycorrhiza fungi on Camellia oleifera. In this paper the mycorrhiza fungi resources of main production areas in Hunan province were investigated. 50 samples of Camellia oleifera rhizosphere soil were collected, which were came from different forest age, soil types and tending measures. We studied the mycorrhiza fungi of Camellia oleifer in different habitats and theirs influence to seedlings growth. The results showed that: 268 specimen of spores or sporocarps of abuscular mycorrhizal fungi(AMF) were isolated by wetsieved method from these collection of the rhizosphere soils. They were identified by morphologic method to 3 genera and 8 species of AMF, which 5 species belong to Glomus, 2 of Acaulospora, and 1 of Scutellospora. In the isolated AMF, only 3 species of AMF Gl.mosseae, Gl.caledonium and Gl.constrictum had more than 10% occurrence frequency, and the spores number of them were significantl- higher than other species. These 3 species of AMF were considered as the dominate species in rhizosphere soil of Camellia oleifera in Hunan province. This research also indicated that AMF were existed in soil of Camellia oleifera, and especially it had high occurrence frequency in barren red soil. At the same time, we studied the relation of environment factors to AMF infection ability, it affirmed the mycorrhiza forming was associated with the environmen- factors. This research will not only provide scientific basis for exploitation of environment friendly biological preparation of mycorrhizal inocula in Camellia oleifera forest, but also improving ecological environment and keep the economy and social sustainable development.
Keywords :
agricultural engineering; agriculture; ecology; forestry; microorganisms; soil; vegetation; AMF infection ability; Camellia oleifera forest; China; abuscular mycorrhizal fungi; ecological distribution; economic forest species; environment factors; mineral nutrition; plant ability enhancement; plant growth promotion; plant resistance; plants tolerability; red soil; rhizosphere soil; seedling growth; water absorption; Immune system; Camellia oleifera; Mycorrhiza fungi; Vesicle-Abuscular; mycorrhizal inocula;
