农业环境科学学报2012，Vol.31Issue(4)：645-653,9.
吡虫啉和多菌灵单施及同时施用对番茄生长的影响
Effects of Imidacloprid and Carbendazim on the Growth of Tomato
摘要
Abstract
Effects of insecticide imidacloprid and fungicide carbendazim whether in single use or their combinations on the growth, physiological and biochemical characteristics of two tomato varieties i.e. Zhongza No.9 and 106 which were widely cultivated in Shouguang, Shandong Province were investigated in the laboratory. The results showed that the two varieties performed different tolerance to imidacloprid and carbendazim, which was higher for Zhongza No.9 than that of Zhongza No. 106. Regardless of single or complexes application, plant fresh weight and chlorophyll content of two tomato varieties demonstrated facilitation within 0～0.07 mg·L-1 of imidacloprid and 0～0.4 mg·L-1 of carben-dazim. With the concentration improvement of single or complexes application, the inhibition of plant fresh weight and chlorophyll content of two tomato varieties were more and more obvious beyond 0.14 mg ·L-1 of imidacloprid and 0.8 mg·L-1 of carbendazim. Under high concentration of complexes application, the plant fresh weight of Zhongza No.106 was significantly low (P<0.05), e.g. B28D1.6 was only 20% of B0.035D0.2; the chlorophyll content of Zhongza No.9 and 106 was significantly decreased (P<0.05), e.g. B2.8D1.6 was only 8% of CK. The per-oxidase activity of the two tomato varieties was significantly increased along with imidacloprid concentration increasing(P<0.05 ), while carbendazim concentration had no significant effects on it. The catalase activity of Zhongza No.9 was significantly increased (P<0.05) with the two pesticides either single or complexes application. Effects of pesticides application on catalase activity of Zhongza No.106 were not significant, because CK was already at high level. Malondialdehyde content and cell membrane permeability of two tomato varieties were so high that effects of pesticides application were less prominent. The free proline concent of Zhongza No.106 was significantly increased to 2.4, 2.4 times and 2.6 times respectively than that of CK with B28, D16 single application and B28D16 complexes application.关键词
吡虫啉/多菌灵/叶绿素/过氧化物酶/过氧化氢酶/游离脯氨酸Key words
imidacloprid/ carbendazim/ chlorophyll/ peroxidase/ catalase/ free proline分类
资源环境引用本文复制引用
董国政,杨俊诚,姜慧敏,张建峰,李玲玲,李树山,潘攀,路超..吡虫啉和多菌灵单施及同时施用对番茄生长的影响[J].农业环境科学学报,2012,31(4):645-653,9.基金项目
国家自然科学基金项目(20877101,21107139) （20877101,21107139）
公益性行业科研专项(201103007) （201103007）
