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冬小麦新品系天919R是天水市农业科学研究所小麦抗锈育种中心以“15th12”为母本、“8845-①-①”为父本进行有性杂交,采用系谱法经多年选育而成。在2004-2006年甘肃省陇南片半山组区试中折合平均产量5 485.50 kg/hm2,比对照品种咸农4号增产16.28%。该品系株高92~100 cm,穗长7.5~8.0 cm,千粒重38.0~41.0 g,容重820 g/L。籽粒含粗蛋白169.7 g/kg(干基)、湿面筋333.0 g/kg(14%湿基),沉降值为33.2 mL(14%湿基),形成时间6.2 m in,稳定时间5.0 m in,拉伸面积56 cm2,延伸性152 mm,最大抗拉阻力255 EU。苗期和成株期对混合菌和水14(中梁17-S)、条中32号(中梁17、中梁22-S)、水14(中梁17、中梁22-S)、水4、条中32号(中梁17-S)、条中29号生理小种及致病类型免疫。适宜在渭河上游海拔1 400~1 900 m、肥力中等的半干旱、半湿润山地冬麦区种植。
The new winter wheat line Tian 919R is a cross between the male parent of “Tianshui Agricultural Research Institute of Wheat Rust Resistance and Breeding Center” with “15th12” as the female parent and “8845-①-① ” as the male parent. Education. In 2004-2006 Gansu Province Longnan Pianan Mountain Group trial equivalent to an average yield of 5 485.50 kg / hm2 than the control variety Xiannong 4 16.28% increase. The strain has a plant height of 92-100 cm, a spike length of 7.5-8.0 cm, a grain weight of 38.0-41.0 g, and a bulk density of 820 g / L. Grains with crude protein 169.7 g / kg dry basis, wet gluten 333.0 g / kg wet basis, sedimentation 33.2 mL (14% wet basis), formation time 6.2 mins, settling time 5.0 mins, Stretching area of 56 cm2, extension of 152 mm, the maximum tensile resistance of 255 EU. Seedlings and adult plants were treated with mixed bacteria and water 14 (middle beam 17-S), No. 32 (middle beam 17, middle beam 22-S), water 14 (middle beam 17, middle beam 22-S) Water 4, Article No. 32 (Zhong Liang 17-S), Article 29 race and pathogenicity type of immune. It is suitable for planting in winter wheat area of semi-arid and semi-arid mountainous area with average fertility of 1 400-1 900 m in the upper Weihe River.