不同破除休眠处理对小麦新种子POD活性的影响  

Effect of Different Methods for Breaking Dormancy on POD Activity of just Harvest Wheat Seeds

作　　者：覃鹏[1] 孔治有[2] 刘叶菊[3] 陈佳[1] 王硕[1] 

机构地区：[1]云南农业大学农学与生物技术学院,昆明650201 [2]保山学院资环学院,保山678000 [3]云南农业大学研究生处,昆明650201

出　　处：《中国粮油学报》2012年第6期5-8,共4页Journal of the Chinese Cereals and Oils Association

基　　金：国家自然科学基金(31000712)

摘　　要：为研究不同方法破除休眠处理对小麦种子POD活性的影响,将新收获小麦种子用低温(2、4、6、8℃分别处理3、6、9、12 d)、H2O2(质量分数为0%、0.31%、0.63%、0.95%,在18、20、22℃下分别处理8、16、24 h)、GA3(质量分数为0、0.025‰、0.050‰、0.075‰、0.1‰,在18、20、22℃下分别处理8、16、24 h)进行处理,并测定分析种子过氧化物酶(POD)活性。结果表明:低温处理小麦新种子时,处理时间对POD活性无显著影响;H2O2处理小麦新种子时,随处理浓度的升高和处理时间的延长,POD活性呈显著降低趋势;各GA3处理浓度对POD活性的影响无显著差异,但均显著低于对照,各试验材料之间无显著差异。In order to research the different methods on POD activity of dormancy wheat seeds, new harvest wheat seeds were treated with low temperature （2,4,6,8 ℃for 3,6,9,12 d, respectively） , H2O2 （0% , 0.31% , 0.63% 0.95% under 18,20 and 22℃ for 8 ℃, 16 and 24 h） , GA3 （0% ,0. 025%o,0.050%o,0. 075%o,0.1%o, un- der 18,20,22℃ for 8,16,24 h）,the result showed that the POD activities were unaffected by treatment time under low temperature; the POD activities were trend to decrease with the increasing H2O2 concentration and treatment time; though the POD activities were unaffected by GA3 concentration, which of them were lower than the control, there were no difference of POD activities among materials.

关 键 词：小麦 POD活性 新种子 休眠 

分 类 号：S512.1[农业科学—作物学] S311