花期沼液喷施对大豆光合作用的影响.doc

河　南　科　技　学　院 2013届本科毕业论文（设计） 论文题目 花期喷施沼液对大豆光合作用的影响 学生姓名： 汪 亮 所在院系： 生命科技学院 所学专业： 种子科学与工程 导师姓名： 徐新娟 完成时间： 2013年5月 花期沼液喷施对大豆光合作用的影响 摘要 为探讨沼液叶面喷施处理对大豆光合作用的影响，在田间条件下，选取两个花期一致的大豆品种，在始花期和盛花期进行喷施处理。沼液与清水的比例为1:1、1:3、1:5，测定处理后植株的叶绿素含量、净光合速率、气孔导度、胞间CO2浓度、蒸腾速率及收获后的百粒重。研究结果表明：经过1:1浓度的沼液喷施处理后，郑97196的净光合速率和蒸腾速率分别比对照增加了13.92%和18.88%，周豆11的净光合速率和蒸腾速率分别比对照增加了27.18%和25.09%，差异显著。气孔导度和胞间CO2浓度与对照差异不显著。与对照相比，郑97196和周豆11的叶绿素总含量分别增加了26.56%和24.67%，差异显著。两个大豆品种的百粒重分别比对照增加了8.72%和7.21%。初步的研究表明：1:1的沼液处理能有效的提高大豆叶片的净光合速率、蒸腾速率、叶绿素总含量和产量。 关键词：大豆，沼液，净光合速率，气孔导度，胞间CO2浓度，蒸腾速率，叶绿素总含量，产量 Effects OF soybean Photosynthesis on Biogas slurry IN FLOWERING PHASE Abstract In order to investigate the effect of biogas slurry spraying treatment on Photosynthesis in soybean, in field conditions, we selected two different soybean cultivars at flowering and flowering stage, spraying processing. Biogas slurry and water ratio of 1:1, 1:3, 1:5, determination of chlorophyll content in plant after treatment, the net photosynthetic rate, stomatal conductance, intercellular CO2 concentration and transpiration rate. The results show that: after the biogas slurry spraying treatment of 1:1 concentration, Zheng 97196 of net photosynthetic rate and transpiration rate were increased by 13.92% and 18.88%, net light week bean 11 photosynthetic rate and transpiration rate were increased by 27.18% and 25.09%, significant difference. The difference between CO2 concentration and stomatal conductance and intercellular no significant contrast. Zheng 97196 and Zhoudou 11 total chlorophyll content were increased by 26.56% and 24.67%, significant difference. Seed Zheng 97196 and Zhoudou 11 weight were increased by 8.72% and 7.21%. Preliminary studies have shown: 1:1 slurry treatment can effectively improve the soybean leaf net photosynthetic rate, chlorophyll content and yield rate, transpiration. Key words：Soybean，biogas