新疆农业科学2017，Vol.54Issue(1)：33-42,10.DOI:10.6048/j.issn.1001-4330.2017.01.005
人工老化对大麦种子活力及其萌发早期淀粉分解和内源激素的影响
Effects of Artificial Aging on Seed Vigor, Starch Decomposition and Endogenous Hormones of Barley in the Early Germination
摘要
Abstract
[Objective] [Method] This study aims to explore the effects of artificial aging on seed vigor,starch granule,starch mass fraction and analyze the activity and endogenous hormones in the endosperm of barley seeds with high temperature and high humidity artificial aging treatment in the early stage of germination.[Result]The results showed that:The germination indexes and embryo vitality of 4 varieties decreased gradually with increasing aging time.Artificial aging increased the small starch granules and reduced large starch granules of endosperm in the germination 72 h.In addition to that,artificial aging increased starch mass fraction during the germination,reduced the activity of α-amylase and β-amylase of all barley and there were significant differences between the aging 15 d and the control.Content of GA3 was lower than that of CK in the germination 24 h but higher than that of the CK in the germination 48 to 72 h.However,contents of ABA were always higher than those of the CK in the all germination process.[Conclusion] The balance between GA3 and ABA was broken by aging,which resulted in the decrease of amylase activity and the slow-down of starch decomposition,so then barley seed vigor was decreased and the germination inhibited.关键词
大麦/人工老化/种子活力/淀粉粒/淀粉酶/内源激素Key words
barley (Hordeum vulgare L.)/artificial aging/seed vigor'starch granule/amylase/endogenous hormones分类
农业科技引用本文复制引用
王凤,宋瑞娇,齐军仓,郑许光,郭亚南,龚磊,王少玉,陈阿龙,黄湘怡,李忠豪..人工老化对大麦种子活力及其萌发早期淀粉分解和内源激素的影响[J].新疆农业科学,2017,54(1):33-42,10.基金项目
The earmarked fund for Modern Agro-industry Technology Research System (CARS-05)现代农业产业技术体系建设专项(CARS-05) （CARS-05）
