三丁基锡2,4-二氯苯氧乙酸酯对紫花苜蓿、苏丹草种子萌发和幼苗生长的影响  

The effect of tri(n-butyl) tin 2,4-dichloro-phenoxy acetate on seed germination and seedling growth of Medicago sativa L.and Sorghum sudanense

作　　者：刘健晖 汪心恬 龙德彪 蒋伍玖 匡代治 谭星宇 任永霞 LIU Jianhui;WANG Xintian;LONG Debiao;JIANG Wujiu;KUANG Daizhi;TAN Xingyui;REN Yongxia(Key Laboratory of Functional Organometallic Materials of Hunan University,Hengyang 421008,China;College of Life Sciences and Environment,Hengyang Normal University,Hengyang 421008,China;Ningxiang County Environment Protection Bureau,Ningxiang 410600,China)

机构地区：[1]功能金属有机材料湖南省普通高校重点实验室,湖南衡阳421008 [2]衡阳师范学院生命科学与环境学院,湖南衡阳421008 [3]宁乡县环境保护局,湖南宁乡410600

出　　处：《黑龙江畜牧兽医》2018年第22期130-133,249,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：功能金属有机材料湖南省普通高校重点实验室开放基金资助项目(13K08);衡阳师范学院自然科学产学研合作类项目(14CXYY04);国家自然科学基金项目(31201750);2016衡阳师范学院大学生研究性学习与创新性实验项目(CX1633)

摘　　要：为了研究不同浓度三丁基锡2,4-二氯苯氧乙酸酯对紫花苜蓿、苏丹草种子萌发和幼苗生长的影响,试验采用水培法分别用不同浓度（0,50,100,150 mg/L）三丁基锡2,4-二氯苯氧乙酸酯溶液培养紫花苜蓿、苏丹草种子后测定其发芽指数、发芽势、发芽率以及幼苗的过氧化物酶（POD）活性和叶绿素含量。结果表明：三丁基锡2,4-二氯苯氧乙酸酯对紫花苜蓿、苏丹草种子萌发的抑制效果极为显著（P〈0. 01）,但不同浓度的抑制效果差异不明显;幼苗阶段根部生长均受抑制,但对苏丹草根的生长抑制更明显,POD活性明显增加,叶绿素含量随三丁基锡2,4-二氯苯氧乙酸酯浓度升高而降低。说明三丁基锡2,4-二氯苯氧乙酸酯对紫花苜蓿、苏丹草种子萌发和幼苗生长有较强的抑制作用,能够表现出一定的除草生物活性。In order to study the effect of tri （n-butyl） tin 2,4-dichloro-phenoxy acetate on seed germination and seedling growth of Medicago sativa L. and Sorghum sudanense, Hydroponics method was used in this experiment with different concentrations of tri （ n-butyl ） tin 2,4 -dichloro - phenoxy acetate （0,50,100,150 mg/L）for cultivating seeds of alfalfa and Sudan grass and, germination index, germination potential, germination rate, peroxidase aetivity and chlorophyll content of seedlings were determined. The results showed that the inhibiting effect of tri （n-butyl） tin 2, 4-dichloro-phenoxy acetate on seed germination of Medicago sativa L. and Sorghum sudanense was very significant（ P〈0. 01 ）, but no obvious difference in the inhibiting effect between different concentrations. Root growth was inhibited at seedling stage, especially more obvious inhibition to the growth of Sudan grass roots. The activity of peroxidase （POD） increased obviously, and the content of chlorophyll decreased with the increase of the concentration of tri（n-butyl） tin 2,4-dichloro-phenoxy acetate. The results suggested that tri（n-butyl） tin 2,4-dichloro-phenoxy acetate has a strong inhibitory effect on the seed germination and seedling growth of alfalfa and Sudan grass, which can show certain herbicidal biological activity.

关 键 词：三丁基锡2 4-二氯苯氧乙酸酯 紫花苜蓿 苏丹草 种子萌发 幼苗生长 

分 类 号：S541.1[农业科学—作物学] S604.1