荞麦新品种定甜荞3号从甜荞品种吉荞10号的优良单株中提纯选育而成。2008 — 2010年在定西市区域试验中，3 a 18点(次)折合平均产量2 224.5 kg/hm2，较对照品种定甜荞1号增产10.3%，居6个参试品种(系)第1位。该品种中早熟，生育期70～80 d，株高70～90 cm，单株粒重2.1～2.5 g，千粒重28.3～29.2 g。籽粒含粗蛋白159.1 g/kg、粗淀粉605.5 g/kg、赖氨酸7.32 g/kg、粗脂肪28.0 g/kg、芦丁11.3 g/kg、水分12.0%。表现抗倒伏、抗旱，耐褐斑病。适宜在甘肃省定西市、白银市等海拔1 800～2 400 m的干旱、半干旱及同类生态区种植。

Dingtianqiao 3 is a newly buckwheat variety by purification bred from fine individual of Jiqiao 10 . The average yield of Dingtianqiao 3 reached 2 224.5 kg/hm2 which is 10.3% higher than of the check in Dingxi city regional trial， ranking the six tested varieties(lines) the first one . The results shows that the early maturing varieties， the grow period is 70 ~ 80 d， plant height is 70 ~ 90 cm， seed weight is 2.1 ~ 2.5 g， 1 000-grain weight is 28.3 ~ 29.2 g . The results also indicates that the centent of grain crude protein， crude starch， lysine， fat， rutin， moisture were 159.1 g/kg， 605.5 g/kg， 7.32 g/kg， 28.0 g/kg， 11.3 g/kg， 12.0%， respectively . It is resistant to lodging， drought resistance， leaf spot . It is stuitable to be grown in arid， semi-arid regions of the 1 800 ~ 2 400 m above sea level in Dingxi city， Baiyin city and other similar ecological areas .

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甘肃省科技重大专项“小杂粮作物品种创新与增产提质技术研究示范”(0801NKDA016)部分内容