摘要
为开发污染环境的化工废渣磷石膏农业资源化利用,本试验以小麦种子为材料,考察磷石膏对作物种子的影响。用浓度为1∶1000,1∶800,1∶400,1∶200,1∶100的磷石膏浸提液和清水(CK)浸种处理小麦种子2 h,测定小麦种子中α-淀粉酶活性、可溶性糖含量、吲哚乙酸氧化酶活性、吲哚乙酸含量、种子生命力等指标,研究磷石膏浸提液浸种对小麦种子及萌发过程中生理生化参数的影响。结果表明,磷石膏浸提液对小麦种子中的α-淀粉酶活性有促进作用,浓度为1∶400的磷石膏浸提液的促进作用最强,用其处理过的小麦种子中的α-淀粉酶活性比对照增加了56.7%;但是磷石膏浸提液对小麦种子下胚轴中的吲哚乙酸氧化酶活性有抑制作用,用浓度为1∶100浸种后的小麦种子其吲哚乙酸氧化酶的活性比对照下降了83.4%。可溶性糖含量和吲哚乙酸含量随着浸提液浓度的升高逐渐下降,低浓度的磷石膏浸提液提高了小麦种子生命力,而高浓度的磷石膏浸提液则对小麦种子生命力有抑制作用。
Phesphogypsum was investigated to assess its utilization potential in farm so as to solve the environmental pollution of the solid wastes. In this study, wheat seeds were used to evaluate the effect of phesphogypsum extracts on wheat seeds in lab. The amylase activity, soluble sugar content, indole acetic acid exidase activity, indole acetic acid content and vitality of wheat seeds were checked 2 h after the treatment of phosphogypsum extracts under the concentrations of 0,1 ： 1000,1 ： 800,1 ： 400,1 ： 200, 1 ： 100. Results showed that the amylase activity of wheat seeds was increased by phosphogypsum extract, particularly 56.7 % more than control （CK） at concentration of I ： 400. The indole acetic acid oxidase activity of wheat seeds was inhibited by phesphogypsum and was 83.4 % lower than that of CK at concentra- tion of 1 ： 100. Soluble sugar and indole acetic acid content decreased with the increasing concentration of phesphogypsum. Wheat seed vitali- ty increased at lower concentration and decreased at higher concentration of phesphogypsum.
出处
《西南农业学报》
CSCD
北大核心
2012年第3期940-944,共5页
Southwest China Journal of Agricultural Sciences
基金
国家科技支撑计划(2009BADC6B03)
江苏省六大人才高峰培养计划(2009142)
江苏省科技支撑计划(BE2009346)
关键词
小麦
种子
磷石膏
生理生化
Wheat
Seed
Phosphogypsum
PhyBiology and biochemistry
