Abstract:

To evaluate the breeding values of introduced varieties， 33 malting barley from Gansu， Europe and North America were as materials. Agronomic， yield and quality characters were identified. The results showed that there were significant differences among varieties from different regions in agronomic traits. There were more differences among varieties from Europe， varieties from North American were followed， while there were less differences among varieties from Gansu. There were significant differences among varieties in yield traits， and there were significant difference among varieties from Europe and Gansu. The average yield of tow-row varieties from North America was highest， those from Europe， Gansu and multi-row varieties from North America were followed. Among 33 varieties， the yield of Ganpi 7 was the highest with 9 364.28 kg·hm^-2， and Ganpi 6 （9 269.03 kg·hm^-2）， MERIT （9 223.32 kg·hm^-2） and Z090M066M （9 143.31 kg·hm^-2） were followed. There were significant differences among varieties in protein content， thousand-grain weight and fullness， and the average thousand-grain weight of varieties from Gansu were highest， the fullness of varieties from Europe were highest. In terms of malt quality， the turbidity，fine powder extract and the content of water protein in varieties from North American were lower， while the soluble nitrogen， kolbach index， α-amino nitrogen， α-amylase and diastatic power were higher； those varieties from Gansu showed high the turbidity， fine powder extract and contents of water， protein and β-glucanase， and the contents of β-glucan in varieties from European were low. So 33 varieties from European， North American and Gansu had respective advantages and disadvantages， and they should be given full attention and utilizationin the breeding of Gansu barley varieties.

Key words: barley, agricultural characters, yield, quality

摘要：

为全面评价引进的欧洲、北美啤酒大麦种质在甘肃省的育种潜力，选取来自欧洲、北美的26份啤酒大麦及甘肃省自育的7份啤酒大麦种质为试验材料，采用随机区组设计，鉴定了33份材料的农艺、产量和品质性状。结果表明，不同地区来源的参试品种间在农艺性状上具有显著差异，其中，欧洲啤酒大麦品种间差异最大，其次为北美啤酒大麦，甘肃啤酒大麦品种间差异较小。参试品种间产量性状也存在显著差异，其中，欧洲啤酒大麦和甘肃啤酒大麦品种间产量差异显著，北美啤酒大麦品种间差异不显著；北美二棱啤酒大麦平均产量最高，其次为欧洲啤酒大麦、甘肃啤酒大麦、北美多棱啤酒大麦。参试品种中，甘啤7号产量最高，为9 364.28 kg·hm^-2，其次为甘啤6号（9 269.03 kg·hm^-2）、MERIT（9 223.32 kg·hm^-2）和Z090M066M（9 143.31 kg·hm^-2）。参试品种间蛋白质含量、千粒重、饱满度差异均达到显著水平；其中，甘肃啤酒大麦的千粒重最高，其次为北美啤酒大麦；欧洲啤酒大麦的饱满度最高，其次为甘肃啤酒大麦。麦芽品质方面，北美啤酒大麦麦芽的水分、蛋白质含量、浊度和细粉浸出物较低，但可溶性氮、库值含量、α-氨基氮、α-淀粉酶和糖化力较高；甘肃啤酒大麦麦芽的水分、蛋白质含量、浊度、细粉浸出物、β-葡聚糖含量较高；欧洲啤酒大麦品种的β-葡聚糖含量较低。综上所述，欧洲、北美和甘肃啤酒大麦品种互有优劣，在选育啤酒大麦新品种时，不同来源的种质资源都应给予充分的重视和利用。

关键词: 啤酒大麦, 农业性状, 产量, 品质