冬小麦新品种平凉45号选育报告

冬小麦新品种平凉45号是平凉市农业科学研究所以82RB(62)/庆82]F1为母本,中间材料84W(21)为父本杂交,经系谱法选育而成。2003—2005年参加甘肃省平凉市山塬组冬小麦区试,2 a 10点(次)折合平均产量4 942.50 kg/hm2,较对照兰天10号增产16.00%,居13个参试品种(系)的第1位;2004—2006年在甘肃省陇东片(平凉)冬小麦区试中,折合平均产量4 200.90 kg/hm2,较对照西峰20号增产5.72%,居11个参试品种(系)的第3位。该品种株高87.0～92.3 cm,平均穗长7.4 cm,平均穗粒数26.4粒,平均千粒重41.3 g。抗冻抗旱性好,高抗条锈病,耐瘠,适应性好;茎叶功能期长,落黄正常,丰产稳产性好,品质优良。适宜在平凉市山塬旱地、高寒阴湿山区和丘陵干旱山区及周边类似地区种植。

Breeding Report of A New Winter Wheat Variety Pingliang 45

Pingliang 45 was a new winter wheat varieties bred by crossing with the parental combination of 82 RB（62）/Qing82]F1/intermediate materials,84 W（21）by Pingliang Institute of Agricultural Sciences.The average yield of Pingliang 45 was 4 942.50 kg/hm2 and 16.00% higher than that of the check Lantian 10 in winter wheat regional test of pingliang city which was conducted during the period 2003—2005;The average yield of Pingliang 45 was 4 200.90 kg/hm2 and 5.72% higher than that of the check Xifeng 20 in winter wheat regional test of eastern Gansu province which was conducted during the period 2004—2006.The result showed that the height 87.0~92.3 cm,average of ear length 7.4 cm,average of the number of grains per spike 26.4,average of grain weight 41.3 g.The drought-resistant varieties with good frost resistance,high resistance to stripe rust resistance,good adaptability and barren;leaf features a long period,the yellow normal,high and stable yield,good quality.It is suitable to cultivate in dryland of Longdong district and the similar ecological areas.