生态环境学报Issue(3)：423-427,5.
生物有机肥对香蕉枯萎病及根系分泌物的影响
The influence of bio-organic fertilizer on banana fusarium wilt and root exudates
摘要
Abstract
Bio-organic fertilizer may be improving soil ecological environment through adjusted community diversity, but the changes of rhizosphere micro-ecology environment depends on the amount and type of root exudates. The influence of bio-organic fertilizer on banana fusarium wilt and root exudates were studied by using in vitro bathing root system under the condition of pot experiment. The results showed that the control effect of banana fusarium wilt by using bio-organic fertilizer were better than organic fertilizer and control treatments,control effect of bio-organic fertilizer and organic fertilizer on banana wilt disease were 55.4%and 28.5%respectively. Oxalic acid, malic acid and fumaric acid were found in organic acid, and organic acid content was dominating of oxalic acid in banana root exudates,the content of oxalic acid was 83.6%-93.0% of organic acid content. In contrast to organic fertilizer treatments, bio-organic fertilizer would reduce malic acid, fumaric acid and organic acid amount in banana root exudates markedly. Organic acids content of different treatment in banana root exudates was:organic fertilizer>bio-organic fertilizer>no fertilizer. The kind and total of amino acid are the most in biological organic fertilizer treatments, followed by the organic fertilizer, and g-ABA, b-Ala, a-ABA, Glu, Asp and P-Ser content in root exudates of biological organic fertilizer treatments are significantly higher than organic fertilizer and no fertilization. Main amino acids (The content of various acids were more than 5%total of amino acid) of biological organic fertilizer treatments have P-Ser, Thr, g-ABA, EOHNH2 and Car, in which P-Ser and g-ABA are significantly higher than organic fertilizer and no fertilization. The index of banana wilt disease was significantly negative correlation with P-Ser, Ser and Ile, the correlation coefficients are-0.99,-0.98 and-0.95 respectively. but it significantly positive correlation with Ans,the correlation coefficients is 1.00. Organic acid amount in banana root exudates was decreased, the kind and total of amino acid were increased by using biological organic fertilizer, and the index of banana wilt disease was significant correlation with some amino acid in banana root exudates, which maybe play very important roles in controlling the banana wilt.关键词
生物有机肥/香蕉枯萎病/根系分泌物/氨基酸/有机酸Key words
bio-organic fertilizer/banana fusarium wilt/root exudates/amino acids/organic acid分类
农业科技引用本文复制引用
赵兰凤,胡伟,刘小锋,张亮,李华兴..生物有机肥对香蕉枯萎病及根系分泌物的影响[J].生态环境学报,2013,(3):423-427,5.基金项目
国家自然科学青年基金项目（41001150）；国家自然科学基金项目 （）
