红小豆新品种陇红小豆1号选育报告

Breeding Report of A New Red Bean Variety Longhongxiaodou 1

红小豆新品种陇红小豆1号以泾川红小豆-2为母本,冀红1号为父本进行有性杂交,采用系谱法选育而成。在2009—2011年区域试验中,陇红小豆1号平均折合产量1 903.1 kg/hm2,较对照品种泾川红小豆-2增产15.7%。该品种直立型,有限结荚习性,生育期98 d,株高31.8 cm,分枝4.3个,单株荚数34.6个,荚粒数7.8粒,荚长8.6cm,百粒重23.6 g。籽粒含粗蛋白233.1 mg/kg(风干基),粗淀粉535.2 mg/kg(风干基),粗脂肪4.10 g/kg(干基),水分13.1%(风干基)。田间高抗叶锈病,较抗叶斑病。

Longhongxiaodou 1 was a new red bean variety bred by crossing with the parental combination of Jingchuanhong xiaodou--2/Jihong 1. The average yield of Longhongxiaodou 1 was 1 903.1 kg/hm2 and 15.7% higher than of the check Jingchuan- hongxiaodou--2 which was conducted during the period 2009--2011 in the regional test. The results showed that Longhongxiaodou 1 was upright, semi-determinate podding habit, and growth period, plant height, plant branches, pods per plant pod, pod length, 100-grain Weight were 98 d, 31.8 cm, 4.3 branches, 34.6 ind, 7.8 pod, 8.6 cm, 23.6 g, respectively. The results also indicated that content of crude protein in grain （dry base）, crude starch （dry base）, crude fat （dry basis）, water （dry basis） were 233.1 mg/kg, 535.2 mg/kg, 4.10 g/kg, 13.1%, respectively. It was high resistance to leaf rust field, representing resistance to a leaf spot.