不同温度对油樟种子生理及萌发的影响  

Effects of Different Temperatures on Physiology and Germination of Cinnamomum longepaniculatum Seed

作　　者：赵鑫 王慧娇 何秀燕 严悦 刘孟婕 廖世宏 魏琴[1,2] Zhao Xin;Wang Huijiao;He Xiuyan;Yan Yue;Liu Mengjie;Liao Shihong;Wei Qin(Yibin University,Yibin 644000,China;Sichuan Oil Cinnamon Engineering Technology Research Center,Yibin 644000,China;Yibin Dream Country Development Co.,Yibin 644000,China)

机构地区：[1]宜宾学院,四川宜宾644000 [2]四川省油樟工程技术研究中心,四川宜宾644000 [3]宜宾梦想农旅发展有限公司,四川宜宾市644000

出　　处：《中国野生植物资源》2022年第10期42-47,共6页Chinese Wild Plant Resources

基　　金：宜宾学院2019年度科研启动项目(2019QD08);四川省高校重点实验室2019年度开放基金(2019XLZ007)。

摘　　要：油樟种子为顽拗性种子,为解决其萌发率低、采收后不易保存等问题,以不同温度处理(-20℃、2℃、15℃、55℃)油樟种子,分析胚与胚乳显微结构,测定种子相对电导率、含水量、可溶性蛋白含量、抗氧化酶活性及MDA含量。结果表明:2℃低温处理能够提高种子内可溶性蛋白含量与抗氧化酶(SOD、POD、CAT)活性,有效降低含水量、MDA含量和相对电导率。因此,2℃处理能够有效保持种子活性,提高种子萌发过程中的各项生理指标,利于油樟种子贮藏与萌发。The Cinnamomum longepaniculatum seeds are racdcitrous seeds.In order to solve the problem of low germination rate and difficult precervation,we select the seeds as experimental materials and treated with different temperatures(-20℃,2℃,15℃,55℃),then analyze the physiological and anatomical structure changes of the seeds.The results showed:after 2℃treated,the soluble protein content and antioxidant enzyme(SOD,POD,CAT)activity of seeds increased dramatically,but the water content,MDA content and relative conductivity decline sharply.Therefore,2℃could effectively maintain seed activity and improve seed germination.

关 键 词：油樟种子 温度 萌发 

分 类 号：S722.14[农业科学—林木遗传育种]