不同割苗期对大麦籽粒及麦苗功能性成分的影响  

Effects of different cut seedling periods on functional ingredients in barley grain and barley grass

作　　者：杜娟[1,2,3] 曾亚文[1,2,3] 普晓英[1,2,3] 杨涛[1,2,3] 杨晓梦[4] 杨树明[1,2,3] 

机构地区：[1]云南省农业科学院生物技术与种质资源研究所 [2]云南省农业生物技术重点实验室 [3]农业部西南作物基因资源与种质创制重点实验室,云南昆明650223 [4]云南农业大学农学与生物技术学院,云南昆明650201

出　　处：《云南大学学报（自然科学版）》2014年第3期446-454,共9页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(31260326);云南省重点新产品开发计划项目(2010BB001);云南省技术创新人才培养项目(2012HB050)

摘　　要：云南常年大麦种植面积22～23万hm2，居全国之首．为了在云南省选择合适的大麦麦苗和籽粒两用型品种，以南方大麦区域12个品系为试验材料，三叶一心（Ⅰ）、五叶一心（Ⅱ）与对照不割苗（CK）等不同时期进行刈割处理，研究不同割苗时期对籽粒和麦苗功能性成分的影响以及籽粒和麦苗功能性成分的相互关系．结果表明：①不同割苗期籽粒黄酮含量为CK〉Ⅱ〉Ⅰ；籽粒抗性淀粉为Ⅰ〉CK〉Ⅱ；γ-氨基丁酸、生物碱差异不显著，γ-氨基丁酸为CK〉Ⅰ〉Ⅱ，生物碱为Ⅱ〉Ⅰ〉CK；选择三叶一心刈割（割苗Ⅰ），籽粒功能性成分较高．②割苗Ⅱ比割苗Ⅰ平均生物碱、总黄酮显著升高；麦苗γ-氨基丁酸含量差异不显著，Ⅱ〈Ⅰ；五叶一心刈割（割苗Ⅱ）麦苗功能性成分较高．③不同割苗期冬性、半冬性及春性大麦籽粒和麦苗功能性成分存在差异；二棱和多棱功能性成分存在差异．④相关分析显示籽粒γ-氨基丁酸与麦苗γ-氨基丁酸、麦苗总黄酮之间，籽粒总黄酮与籽粒γ-氨基丁酸之间呈显著正相关，且与产量性状之间呈显著正相关．⑤初步筛选出苏啤3号、2008品22作为适宜麦苗生产、籽粒生产的两用型大麦品种．The area of barley planting in Yunnan （ perennial 220 000--230 000 hectares） ranks the first in China. To explain the change of functional ingredients in barley grain and barley grass by different cut seedling periods and the correlation between the functional ingredients in barley grain and barley grass,tests of 12 barley lines from six provinces of Southern barley region were conducted in different cut seedlings period as stage Ⅰ （ cut seedlings at the stages of three mature leaves and one new leaf ）, stage Ⅱ （five mature leaf and one new leaf） and no cut seedlings （CK） ,which provided theoretical basis for screening out the dual functional barley varieties available both in producing grains and providing barley grass in Yunnan. The main results were as follow：① Totalflavones in barley grains ranked as CK 〉 Ⅱ 〉 Ⅰ ~ Resistant starch in barley grains ranked as Ⅰ 〉 CK 〉 Ⅱ. There was no significant difference in the change of - aminobutyric and alkaloid, CK 〉 Ⅰ 〉 Ⅱ was found in nobutyric;while CK 〉 Ⅰ 〉 Ⅱ in alkaloid. It was the best way to cut seedlings at the stage Ⅰ when the - ami- highest functional ingredients of barley grains were obtained. ②Alkaloid and total flavones in barley grass ranked as 11 〉 Ⅰ. There was no significant difference in - aminobutyric change in barley grass, and Ⅱ 〈 Ⅰ.Ⅰt was suitable to cut seedlings at the stage Ⅱ to have the highest functional Ⅰngredients in barley grass. ③In different cut seed- lings stages, functional ingredients of barley gains and grass showed difference among springness varieties, semi - winterness and wintemess varieties;between poly -rowed barley and two -rowed barley. ④ Correlation analysis showed that - aminobutyric acid between barley gains and barley grass was positively related,so was the total fla- vones in barley grass among different varieties, and - aminobutyric acid and total flavones of barley gains. There was positive correlation between yield trait and functional ingredien

关 键 词：割苗 籽粒 麦苗 功能性成分 相关分析 

分 类 号：S512.3[农业科学—作物学]