抗旱丰产冬小麦新品系中梁93646选育报告

冬小麦新品系中梁93646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92348F1为母本,92553F1为父本进行复合杂交,经多年选育而成的新品系。该品系株高100cm,穗长7.4cm,千粒重37.6g,容重789.7g/L,籽粒含粗蛋白11.07%(干基)、湿面筋21.5%、灰分1.52%(干基)、赖氨酸0.46%(干基),属丰产弱筋粉专用优良品系。该品系抗寒、抗旱性强,稳产性好,对条锈病表现高至中抗,对白粉病轻感。经天水市2001-2003年区域试验,平均折合产量5187.75kg/hm2,较对照品种咸农4号增产16.90%。适宜天水市及周边干旱和半干旱地区种植。

Report on the Breeding of Winter Wheat Strain Zhongliang 93646 with a Characteristic of Drought-resistant and High-yielding

Zhongliang 93646, a winter wheat strain, is newly bred by Rust-resistant Wheat Breeding Centre,Tianshui institute of agricultural sciences through years of selections.It was gained by using male parent of 92553 F_1 and female parent 92348 F_1 which is sourced from cross breeding of Zhongsi and ordinary wheat.The stem length of the strain is 100 cm,ear length 7.4 cm,thousand grain weight 37.6 g,bulk weight 789.7 g/L,crude protein content in grain 11.07% (dry base),wet gluten 21.5%,ash 1.52% (dry base),lysine 0.46%(dry base).The strain is especially suitable for weak gluten flour with high yielding potentials.The strain is tolerant to cold and drought conditions,and therefore maintains a stable production.It was also resistant to stripe rust at high-to-medium level,and slightly susceptible to powdery mildew. The strain got an average yield of 5 187.75 kg/hm~2 at Tianshui regional tests in the year 2001-2003, which is 16.90% higher than the control of Xian-nong 4.This strain is fitted to arid and semi-arid region in Tianshui and surrounding area.