摘要： 本实验以萱草为研究材料，以萱草叶片中叶绿素含量、可溶性糖含量和光合速率为测试指标，研究农药对萱草光合速率等影响，以期为农药的生态风险评估提供依据。试验结果表明在10%苯醚甲环唑作用下，萱草的光合速率表现出先上升，后下降的变化趋势；10%苯醚甲环唑在药后1d、3d在400倍、600倍、800倍以及1000倍浓度下光合速率变化影响很大，1200倍浓度下影响不大，药后6d和10d各浓度下变化影响不大。10%苯醚甲环唑在800倍浓度下药后10天对萱草可溶性糖含量的影响最大，达到了0.4211mg/Kg，10%苯醚甲环唑在1200倍浓度下药后1天和药后5天对萱草叶绿素总含量的影响最大，达到了169.87和194.80，1000倍浓度下在药后9天影响达到最大，数值为70.48。在不同农药处理的过程中，百菌清对光合速率的影响最大，其次是代森锰锌。10%苯醚甲环唑在800倍浓度的时候对萱草可溶性糖含量影响最大。同一浓度的不同农药二氰醌悬浮液对萱草叶绿素含量影响最大。10%苯醚甲环唑在1000和1200倍浓度时对萱草叶绿素含量影响都很显著。50520

毕业论文关键词：苯醚甲环唑；可溶性糖含量；叶绿素含量；光合速率；

Effect of the benzene on the day lilies photosynthesis

Abstract: This experiment by day lilies as research materials, day lilies leaf chlorophyll content, soluble sugar content and photosynthetic rate as the index, study the effects of pesticides on day lilies photosynthesis, pesticide effect on plant growth and development, in order to provide the basis for ecological risk assessment of the pesticide. Experimental results show that in 10% of benzene ether JiaHuan azole, day lilies of the photosynthetic rate showed up first, after declining trend; 10% phenyl ether JiaHuan azole in medicine after 1 day, 3 days in 400 times, 600 times, 800 times and 400 times the concentration affected the photosynthetic rate, concentration of 1200 times, drug concentration of 6 and 10 days after the change. 10% phenyl ether JiaHuan azole in 10 days after 800 times the concentration of remedy to the case of day lilies of soluble sugar content, reached 0.4211 + / - 0.0630, 10% phenyl ether JiaHuan azole in 1200 times the concentration after the remedy to the case 1 and medicine after five days of day lilies of the total amount of chlorophyll had the greatest influence, reached 169.87 + / - 35.85 and 35.85 + / - 33.49, 1000 times the next 9 days after drug concentration 

reached maximum, numerical value was 70.48 + / - 39.28. In the process of different pesticide processing, chlorothalonil effect on photosynthetic rate, the largest followed by mancozeb. 10% of benzene ether JiaHuan azole to day lilies at the time 800 times the concentration of soluble sugar content. The same concentration of different pesticides two cyanide quinone suspension of day lilies chlorophyll content. 10% of benzene ether JiaHuan azole in 1000 and 1200 times the concentration of day lilies chlorophyll content were significantly affected.

Keywords: benzene ；Soluble sugar content ；Chlorophyll content ；Photosynthetic rate;

 目录

1 绪论 2

1.1 萱草的生态学特征及观赏价值 2

1.2 农药简介 2

1.2.1  苯醚甲环唑水分散粒剂 2

1.2.2  百菌清可湿性粉剂 3

  1.2.3  氯溴异氰尿酸   4

  1.2.4  代森锰锌可湿性粉剂 5

    1.2.5  二嗪农可湿性粉剂   6

2 实验材料与方法