9个冬小麦品种在通渭县引种试验初报
2021-06-08张蓉董禄信孙长红许静
张蓉 董禄信 孙长红 许静



摘要:以冬小麦品种陇中1号为对照,对引进的9个冬小麦品种进行了引种试验。结果表明,康庄974主要性状优良,折合产量为3 480.00 kg/hm2,较对照陇中1号增产653.33 kg/hm2,增产率23.11%,丰产性、抗逆性和适应性最好,适宜在通渭县种植;庄浪13号、天选57号、陇中7号综合性状较好,分别比对照陇中1号增产13.44%、12.26%、10.38%,可进一步试验示范。
关键词:冬小麦;新品种;引种;通渭县
Abstract:The crude fat content and fatty acid component content of 43 flax resources in Gansu region were determined and analyzed. The results showed that the range of variation in crude fat content was from 33.46% to 416.80 g/kg, the average value was 207.72 g/kg, and the coefficient of variation was 86.96%. The average contents of the palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid were 5.860%, 4.980%, 27.280%, 14.480% and 47.830%, respectively. The range of variationof the unsaturated fatty acid was from 11.55 to 98.1% with the largest variation coefficient in stearic acid and the smallest one in linolenic acid. According to comprehensive analysis , the fatty acid content from high to low in turn for linolenic acid, oleic acid, linoleic acid, palmitic acid , stearic acid, coefficient of variation from high to low in turn for crude fat, stearic acid , oleic acid , palmitic acid, linoleic acid, linolenic acid.
Key words:Flax;Fat;Fatty acid;Composition analysis;Gansu region
小麥是我国最主要的粮食作物之一,是北方居民的主要口粮[1 - 4 ]。冬小麦在通渭县常年播种面积近2.27万hm2,仅次于玉米、马铃薯,占全县粮食作物播种面积的20%以上,在农业生产中占有十分重要的地位。正确选择小麦品种是实现小麦高产的关键[5 - 6 ]。2009年以来,通渭县引进了一批优良的冬小麦品种,如兰天26号、中梁25号、中梁26号、静麦10号等,产量均在3 000 kg/hm2以上,为全县小麦生产做出了巨大贡献。由于多年种植,小麦品种混杂严重,无论是从抗逆性还是从丰产性均出现退化现象[7 - 8 ],引进优良的冬小麦新品种显得十分重要。2019年秋季,我们引进了9个冬小麦品种进行了比较试验,旨在筛选出适宜当地推广的优良冬小麦品种(系)。
1 材料与方法
1.1 供试材料
供试冬小麦品种陇中6号、陇中7号、中麦175、中麦132、陇鉴115、陇育5号、陇中1号(CK),均由定西市农业科学院小麦所提供;康庄974由甘肃农业大学农学院提供,天选57号由天水市农业科学研究所甘谷试验基地提供;庄浪13号由庄浪县农业技术推广中心提供。
1.2 试验地概况
试验地位于通渭县碧玉镇石滩村。当地海拔1 732 m,年均气温7.5 ℃,无霜期137 d,日照时数2 100~2 430 h,生育期内降水量385.5 mm。……
