不同老化处理时间对棉花种子生理生化的影响  

Influence of Different Aging Times on Physiological and Biochemical Characteristics of Cotton

作　　者：姬俊华[1] 孟超敏[2] 何庆飞 

机构地区：[1]洛阳理工学院环境工程与化学系,河南洛阳471023 [2]河南科技大学农学院,河南洛阳471003

出　　处：《种子》2017年第11期14-17,共4页Seed

基　　金：国家自然科学基金项目(31101184);河南科技大学人才基金项目(09001047)

摘　　要：以鲁棉10号棉花种子为实验材料,用LH-80型人工老化箱处理棉花种子0(ck),2,4,6,8d和12d,测定其发芽指标(发芽率、发芽势和发芽指数)和生化指标(SOD、POD和MDA活性)以及相对电导率。结果表明:随着老化程度的加深,发芽指标均呈现下降趋势,与对照相比分别降低7.66%~30.00%、3.34%~28.00%和2.27%~14.82%。老化过程中,SOD和POD活性随着老化时间的延长总体均降低,而MDA活性和相对电导率随老化时间的延长总体逐渐升高。Cotton seed,Lumian No.10 were treated with artificial aging process box of different time 0 （ck） .2,6.8 and 12 d.The germination parameters （germination rate,germination potential and germi- nation index） , chemical parameters（SOD.POD and MDA activity） and leaf relative conductivity were measured.The result showed that the germination parameters were reduced in aged seeds.The above three germination parameters of Lumian No. 10 decreased by 7.66 % -- 30.00 %, 3.34 % -- 28.00 % and 2.27%--14.82%,respectively ;The activity of enzymes including SOD and POD in aged seeds also significantly decreased,while MDA activity and the relative conductivity increased markedly.

关 键 词：棉花种子 人工老化 生理生化特性 

分 类 号：S562[农业科学—作物学]