CAJ | 학술논문

为了研究水杨酸对木槿种子萌发及子叶生理活性物质的影响,在无土栽培条件下,设置了4个水杨酸浓度处理,即S1：30mg/L,S2：60mg/L,S3：120mg/L,S4：240mg/L,1个对照（CK）,3次重复。结果表明：在水杨酸浓度为0~60mg/L范围内,木槿种子发芽率、发芽势逐渐升高,浓度高于120mg/L时降低;S1处理胚根加长生长量高于对照,其余处理低于对照;S1处理子叶内电导率高于对照,其余处理低于对照;所有处理丙二醛含量随处理浓度的增加而增加,保护酶活性均低于对照;水杨酸处理可以提高子叶内脯氨酸含量,降低可溶性糖含量;水杨酸浓度在30~120mg/L范围内可以提高可溶性蛋白含量,浓度达到240mg/L时降低可溶性蛋白含量。综合分析认为,60~120mg/L的水杨酸处理对促进种子发芽以及提高幼苗抗性作用良好。
위료연구수양산대목근충자맹발급자협생리활성물질적영향,재무토재배조건하,설치료4개수양산농도처리,즉S1：30mg/L,S2：60mg/L,S3：120mg/L,S4：240mg/L,1개대조（CK）,3차중복。결과표명：재수양산농도위0~60mg/L범위내,목근충자발아솔、발아세축점승고,농도고우120mg/L시강저;S1처리배근가장생장량고우대조,기여처리저우대조;S1처리자협내전도솔고우대조,기여처리저우대조;소유처리병이철함량수처리농도적증가이증가,보호매활성균저우대조;수양산처리가이제고자협내포안산함량,강저가용성당함량;수양산농도재30~120mg/L범위내가이제고가용성단백함량,농도체도240mg/L시강저가용성단백함량。종합분석인위,60~120mg/L적수양산처리대촉진충자발아이급제고유묘항성작용량호。
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.