不同处理对麻黄种子生理生化特性的影响  

Effects of seed treatment on Ephedra sinica physiological and biochemical characteristics

作　　者：李胜[1] 张真[1] 杨广兴[1] 李婷[1] 张青松[1] 刘媛[1] 吴媛媛[1] 汪建政 

机构地区：[1]甘肃农业大学生命科学技术学院 [2]甘肃顺意生物科技有限公司,甘肃兰州730010

出　　处：《草业科学》2007年第1期59-62,共4页Pratacultural Science

基　　金：国家科技部中小企业创新基金(03C26226201184);甘肃省自然基金(3ZS051-A25-063);兰州大学博士后基金(31455);甘肃农业大学科技创新基金(GAU-CX0515)

摘　　要：应用低温层积、GA3、CaCl2、KH2PO4处理人工老化处理的麻黄Ephedra sinica种子,研究不同处理对麻黄种子生理生化特性的影响。结果表明:麻黄种子随着人工老化时间的增加,种子活力和发芽率逐渐下降。在利用最佳处理组合的物理或化学方法处理已老化的麻黄种子,种子电导率和丙二醛含量随着老化时间的增加而增加,脱氢酶和过氧化氢酶活性的变化则相反,4种最佳处理组合处理后种子的电导率与丙二醛含量均低于对照,2种酶活性均高于对照,且CaCl2.2H2O和KH2PO4处理的2种酶活性均高于层积和GA3处理。Effects of different seed treatments including low temperature stratification, GA3, CaCl2 and KH2PO4 On aging seed physiological characteristics were studied with aging seed of Ephedra sinica stapf. The results indicated that the seed vitality and germination rate of all seeds gradually increased with prolonging the aging days. Under the best combination of the same physical or chemical treatments, the relative electric conductivity （REC）and the content of MDA of aged Ephedra seeds gradually increased with the increasing aging time, the activity of dehydrogenase （ADG） and hydrogen peroxidase （AHP） were on the contrary, the REC and MDA contents were all below the CK. The ADG and AHP were all higher than CK, the ADG and AHP of T2 and T3 were all higher than T1 and T4.

关 键 词：麻黄 种子 人工老化 层积 活力 发芽率 

分 类 号：S567.19[农业科学—中草药栽培] S548[农业科学—作物学]