冬小麦新品系中梁969选育报告

冬小麦新品系中梁969是天水市农业科学研究所小麦抗锈育种中心以“中四”与普通小麦复合杂交所得“90293F5”为母本、“89143F6”为父本进行复合杂交选育而成。该品系株高105．0cm，穗长7．5cm，千粒重44．6g，容重775g／L，籽粒含粗蛋白139．0g／kg（干基）、湿面筋31．1％，抗寒、抗旱性强，稳产性好，对条锈病表现高抗至中抗，轻感白粉病。在2004—2006年甘肃省陇南片区域试验中，2a平均折合产量5756．25kg／hm^2，较对照品种成农4号增产21．76％。适宜天水市及周边干旱和半干旱地区种植。

Breeding Report of Winter Wheat Line Zhongliang 969 With Drought-resistant and High-yielding

Zhongliang 969,a winter wheat line newly bred by Rust-resistant Wheat Breeding Centre,Tianshui institude of agricultural science.It was gained by using female parent of 90293F5 and male parent 89143F6 which is sourced from cross breeding of Zhongsi and ordinary wheat.The plant height is 105.0 cm,ear length is 7.5 cm,thousand grain weight is 44.6 kg,and bulk weight is 775 g/L.The seed contain crude protein of 139.0 g/kg(dry base)and wet gluten of 31.1%.It is especially suitable for middle gluten flour with high yielding potentials,and tolerant to cold and drought conditions,and maintains a stable production.It was also resistant to stripe rust at high-to-medium level,and slightly susceptible to powdery mildew,The average yield is 5 756.25 kg/hm2 at Tianshui regional tests from 2004 to 2006,which is 21.75% higher than of the check of Xiannong 4 in winter wheat regional test.It is fitted to cultivate in arid and semi-arid region in Tianshui and surrounding area.