农学学报2011，Vol.1Issue(6)：12-15,4.
不同浓度的水杨酸处理对木槿种子萌发和幼苗生理特性的影响
Effects of Salicylic Acid of Different Concentrations on Seed Germination and Physiological Characteristics of Hibiscus syriacus Linn
摘要
Abstract
In order to study the effects of salicylic acid of different concentrations on the seed germination and physiological characteristics change of Hibiscus syriacus Linn.,a soilless culture trial with the SA at four concentrations （ 30,60,120 and 240 mg/L） was conducted,with clear water as the control.The seed germination rate and germination potential of Hibiscus syriacus at 0-60 mg SA/L gradually increased,and those were decreased at more than 120 mg SA/L.The treatment with 30 mg SA/L had higher radicle extension growth and higher conductivity than the control.The MDA content was increased with the SA concentration.The activities of protection enzymes in the SA treatments were lower than those in the control.Moreover,the SA could enhance proline content in cotyledons and reduced soluble sugar content.The SA at 30-120 mg/L could increase the soluble protein content,but that at 240 mg/L reduced the soluble protein.Based on comprehensive analysis,it is inferred that the SA at 60-120 mg/L could promote the seed germination and improve the seedling resistance.关键词
水杨酸/木槿/种子萌发/生理特性Key words
Salicylic Acid/Hibiscus syriacus Linn./Seed Germination/Physiological Characteristics分类
农业科技引用本文复制引用
崔继光..不同浓度的水杨酸处理对木槿种子萌发和幼苗生理特性的影响[J].农学学报,2011,1(6):12-15,4.
