优质甜荞新品种定甜荞3号选育报告

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。

Breeding Report on Buckwheat Variety Dingtianqiao 3 with High Quality

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 is70 ~ 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 the1 800 ~ 2 400 m above sea level in Dingxi city,Baiyin city and other similar ecological areas.