低温下硅对春小麦幼苗生长及离子含量的影响  

Effect of Different Silicon Concentration Application on Seedling Growth and Absorption of Ion Content

作　　者：张婷婷[1] 赵培培[1] 于崧[1] 于立河[1] Zhang Tingting Zhao Peipei Yu Song Yu Lihe(College of Agronomy , Heilongjiang Bayi Agricultural University, Daqing 163319)

机构地区：[1]黑龙江八一农垦大学农学院,大庆163319

出　　处：《黑龙江八一农垦大学学报》2017年第2期1-7,共7页journal of heilongjiang bayi agricultural university

基　　金：国家公益性行业(科研)专项(本地与引进种质资源高效结合与利用研究:201303007);黑龙江省农垦总局科技攻关专项(垦区引进小麦种质资源本地化的研究与示范:HNK125A-01-02);黑龙江省农垦总局(低洼耕地改造与粮食丰产配套技术集成研究与示范:HNK125B-06-01);研究生创新科研项目(YJSCX2015-Y02)

摘　　要：为了解低温胁迫下硅缓解对春小麦幼苗的生长以及对氮、磷、钾、硅的吸收的影响,研究以春小麦品种龙麦26和克旱16为试验材料,分别进行0℃和4℃短期低温胁迫,测定其幼苗生长及离子含量,探讨低温胁迫下硅对小麦养分的吸收机制,结果表明:适当浓度的硅处理显著促进小麦幼苗的生长,以1.0 mmol·L^(-1) Si浓度处理对低温缓解效果最佳,小麦各器官氮、磷、钾和硅的含量增加,小麦植株在硅浓度为0.5 mmol·L^(-1)和1.0 mmol·L^(-1)水平上对硅和氮的吸收、在0.5 mmol·L^(-1)水平上对磷和钾的吸收具有明显的促进作用。To reveal the effect of different silicon concentration application on seedling growth and absorption of nitrogen, phosphorus, potassium and silicon, two spring wheat cuhivars Longmai 26 and Kehan 16 were used as experiment materials under short-term low temperature conditions to determine the seedling growth and the ion content, and to discuss the absorption mechanism of silicon on the wheat nutrition under low temperature .It indicated that appropriate concentration of silicon processing promoted the seedling growth of wheat seedlings significantly and the positive effect of 1.0 mmol· L^-1 silicon was significant. The content of nitrogen, phosphorus, potassium and silicon increased, the absorption of nitrogen and silicon increased after 0.5 mmol· L^-1 and 1.0 mmol· L^-1 silicon treatment, and 0.5 mmol· L^-1 silicon treatment was significant to the absorption of phosphorus and potassium.

关 键 词：硅 小麦 低温胁迫 幼苗生长 离子含量 

分 类 号：S512.1[农业科学—作物学] S312