|
|||||
|
|
| 三七设施栽培根际微生物菌群变化及其与三七根腐病的相关性研究 | |
| 引用本文： | 官会林,杨建忠,陈煜君,崔秀明,王 勇,张云峰.三七设施栽培根际微生物菌群变化及其与三七根腐病的相关性研究[J].土壤,2010,42(3):378-384. |
| 作者姓名： | 官会林 杨建忠 陈煜君 崔秀明 王 勇 张云峰 |
| 作者单位： | 1. 云南师范大学能源与环境科学学院,昆明,650092 2. 云南文山三七研究院,云南文山,663000 3. 云南师范大学生命科学学院,昆明,650092 |
| 基金项目： | 国家自然科学研究基金项目（40861019，30660075）和云南省重点产业创新工程项目（2008IF025-1）资助。 |
| 摘 要： | 本研究通过对三七免耕种植的定位研究,探讨三七根腐病发病过程中的菌群变化及其与三七根腐病的相关性。结果表明:设施栽培条件下三七根际土壤中各类微生物数量及种群结构均随着季节气温而变化,其消涨变化规律与三七根腐病高发期吻合,是诱发三七根腐病发生的根本原因。进一步的研究表明三七根腐病的发生,与土壤中厌氧细菌、真菌及放线菌数量的增加及其种群数量比例变化有密切的关联性,这三类菌群的数量及其比例变化是诱导三七根腐病害发生的主要原因;土壤温度与根腐发病率没有直接的关联作用,但是温度可改变土壤微生物种群变化并导致三七根腐病的发生发展;根际土壤中好氧细菌数与厌氧细菌数比例及真菌与细菌总数比值可作为三七根腐发病及病害防治的预期参考指标。 |
| 关 键 词： | 三七 土壤微生物 种群比例 根腐病 相关性 |
Change of rhizospheric microbe colony in cultivated soil and its correlation to root rot disease in panax notoginseng |
|
| GUAN Hui-lin,YANG Jian-zhong,CHEN Yu-jun,CUI Xiu-ming,WANG Yong,ZHANG Yun-feng.Change of rhizospheric microbe colony in cultivated soil and its correlation to root rot disease in panax notoginseng[J].Soils,2010,42(3):378-384. | |
| Authors: | GUAN Hui-lin YANG Jian-zhong CHEN Yu-jun CUI Xiu-ming WANG Yong ZHANG Yun-feng |
| Institution: | College of Energy and Environment, Yunnan Normal University |
| Abstract: | Rhizospheric soils from health plants and disease plants at fixed spots were used to study the relation between the change of rhizospheric microflora colony and root rot in Panax notoginseng. The results showed that the quantity of various microbes and the structure of microbe population could change along with the season temperature, and their fluctuation characteristic was coherent with the happening time of root rot at cultivation condition, which implied that certain microbe quantity and rhizospheric microflora could be attributed to root rot. Further experiment revealed that the changes of the quantity of anaerobe, fungi and yeast and their population ratio had a high correlation with root rot at fixed spots in cultivation Panax notoginseng. The three kinds of microbe quantity and their ratios could be the direct factors of root rot. Although temperature could not result in the occurrence of root rot directly, it could influence the growth of anaerobe, fungi and yeast, further influence the occurrence of root rot in Panax notoginseng. By comparison microbe quantity, we concluded that the ratios of aerobic/anaerobe and fungi/total bacteria could be used as the consulting index for anticipating root rot in Panax notoginseng cultivation. |
| Keywords: | Panax notoginseng Soil microorganism Population ratio Root rot disease Relevance |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《土壤》浏览原始摘要信息 | |
| 点击此处可从《土壤》下载免费的PDF全文 | |