高产节水春小麦新品种陇春41号选育报告

Report on Breeding of a New Spring Wheat Variety Longchun 41 with High-yield and Water-saving Characteristics

陇春41号是甘肃省农业科学院小麦研究所和中国科学院西北高原生物研究所于2004年将高产品种陇春23号、陇春19号、陇辐2号、银春8号加入矮败轮选群体,通过连续2年的群体自由授粉,2006年从矮败轮选群体中选择优异可育株,后代选择以系谱法为依据。2017—2018年参加甘肃省水地春小麦西片区域试验,2 a平均折合产量分别为8496.5、7686.5 kg/hm^(2),分别较对照品种宁春4号增产7.90%、5.18%;2019年参加甘肃省水地春小麦区域生产试验,平均折合产量8012.7 kg/hm^(2),较对照宁春4号增产6.02%。陇春41号容重806 g/L,粗蛋白含量140.4 g/kg(干基),湿面筋含量275 g/kg,面团吸水量590 mL/kg,形成时间4.2 min,稳定时间4.0 min,拉伸面积62 cm^(2),延伸性184 mm,最大拉伸阻力230EU。该品种集高产、节水、优质、广适性为一体,适宜在甘肃省河西灌区及沿黄灌区种植。

To promote the popularization and application of Longchun 41,its breeding process,characteristics,yield performance and key cultivation techniques of longchun 41 were introduced in detail. Longchun 41 was selected by Wheat Research Institute Gansu Academy of Agricultural Sciences and Northwest Institute of Plateau Biology,Chinese Academy of Sciences. In2004,high-yielding varieties Longchun 23,Longchun 19,Longfu 2 and Yinchun 8 were added into the dwarf abortion rotation population. After two consecutive years of population free pollination,excellent fertile strains were screened from dwarf abortion rotation selection population in 2006,and offspring selection was based on genealogy. From 2017 to 2018,the average yield of spring wheat was 8 496.5 kg/hm^(2)and 7 686.5 kg/hm^(2),which increased by 7.90% and 5.18% compared with Ningchun 4,respectively. In 2019,it participated in the spring wheat production experiment of irrigated land in Gansu province,with an average equivalent yield of 8 012.7 kg/hm^(2),an increase of 6.02% compared with Ningchun 4. Its bulk density was 806 g/L,the content of crude protein was 140.4 g/kg,the wet gluten content was 275 g/kg,the water absorption capacity of dough was 590 mL/kg,the formation time was 4.2 min,the stability time was 4.0 min,the tensile area was 62 cm^(2),the elongation was 184 mm,and the maximum tensile resistance was 230 EU. This cultivar has high yield,water saving,high quality and wide adaptability charcteristics,which is suitable for planting and spreading in Hexi irrigated area of Gansu province and along the Yellow River irrigated area.