定苦荞1号选自西农9920。在2012 — 2014年第十轮国家苦荞品种(北方组)区域试验中，26点(次)折合平均产量2 528.90 kg/hm2，比对照品种九江苦荞增产9.96%。生育期91 d，株高131.5 cm，主茎分枝5.5个，主茎节数16.5节，单株粒重5.0 g，千粒重15.7 g。籽粒含碳水化合物67.19%、脂肪3.02%、蛋白质13.05%、水分10.61%、黄酮2.08%。抗旱、耐褐斑病、丰产稳产性好。适宜在内蒙古达特拉、赤峰、宁夏固原、山西大同等地区种植。

Dingkuqiao 1 is a newly bred tartary buckwheat cultivar by multiple individual selection using Xinong 9920 as parent. In 2012 — 2014， the average yield is 2 528.9 kg/hm2， which is 9.96% higher that of the check Jiujiangkuqiao at 26 points in national variety regional tests. The result shows that the growth period is 91 days， plant height is about 131.5 cm， branch of stem is 5.5， node number of stem is 16.5， 1000-grains weight is 5.0 g and seeds weight per-plant is 15.7 g. In addition， the fat， protein， water content and flavonoids compounds in dry seeds are 67.19%， 3.02%， 13.05%， 10.61% and 2.08%， respectively. It would be high in yield， good in drought and brown spot resistance. It is suitable to be grown in Datela and Chifeng of Inner Mongolia， Guyuan of Ningxia， Datong of Shanxi and other regions of similar ecological conditions.

S512.9

国家燕麦荞麦农业产业技术体系定西综合试验站建设专项(CARS-08-E-2)部分内容。