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作者	单位
罗平，杨晓梦，普晓英，李霞，杨丽娥，杨砚斌，杨加珍，曾亚文	（1.云南大学资源植物研究院，云南昆明 650504； 2.云南省农业科学院生物技术与种质资源研究所，云南昆明 650205）

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中文摘要:

为发掘更多高营养成分大麦品种和优质亲本，以526份国内外大麦品种为材料，鉴定了其皮裸性、棱型、籽粒颜色等性状，使用近红外光谱法和分光光度法测定其籽粒β-葡聚糖、蛋白质、淀粉、直链淀粉、总黄酮、生物碱、γ-氨基丁酸和抗性淀粉8种营养成分含量。结果表明，基因型对大麦籽粒营养成分含量影响显著（P＜0.05）。二棱皮大麦的β-葡聚糖含量显著高于六棱裸麦；二棱黄色大麦蛋白质含量显著高于六棱非黄色大麦，淀粉含量显著低于六棱黄色大麦；裸大麦直链淀粉含量显著高于皮大麦，六棱非黄色裸大麦γ-氨基丁酸、总黄酮含量显著高于二棱黄色皮大麦；六棱非黄色皮大麦生物碱含量显著高于二棱黄色裸大麦；非黄色裸大麦抗性淀粉含量显著高于黄色皮麦。526份大麦品种被聚类为5个类群。8个营养成分最高大麦品种分别为CBSS05Y00293S（高β-葡聚糖）、福贡白青稞（高蛋白质）、云啤21号（高淀粉）、云啤10号（高直链淀粉）、宽颖大麦（高γ-氨基丁酸）、冬青17号（高总黄酮）、碧江大麦-1（高生物碱）和景东米大麦（高抗性淀粉）。

英文摘要:

In order to explore high nutritional barley and high-quality parents, 526 domestic and foreign barley varieties were used as materials to identify the traits such as husk, grain colour and row type. The grain nutritional component contents were determined using near-infrared spectroscopy and spectrophotometry, such as β-glucan, protein, starch, amylose, total flavonoids, alkaloids, γ-aminobutyric acid (GABA), and resistant starch. The results showed that genotype had significant impact on the nutritional content of barley grains. The β-glucan content of two-rowed barley is significantly higher than that of six-rowed hulless barley; the protein content of two-rowed yellow barley is significantly higher than that of six-rowed non-yellow barley; the starch content of six-rowed yellow barley is significantly higher than that of two-rowed yellow barley; the amylose content of hulless barley is significantly higher than that of hulled barley; the GABA content and the total flavonoid content of six-rowed and other colors hulless barley is significantly higher than that of two-rowed yellow hulled barley; the alkaloid content of six-rowed other colors barley is significantly higher than that of two-rowed yellow hulless barley and the resistant starch content of other colors hulless barley is significantly higher than that of yellow hulled barley. The 526 barley varieties can be divided into 5 classes. Eight barley varieties with excellent nutritional components were screened: CBSS05Y00293S(high β-glucan), Fugong baiqingke(high protein), Yunpi 21(high amylose), Yunpi 10(high straight-chain amylose), Kuanyingdamai(high GABA), Dongqing 17(high total flavonoids), Bijiang barley-1(high alkaloids), and Jingdong midamai(high resistant starch).

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