优质旱地春小麦新品种甘春25号的选育及栽培技术研究

摘要

优质旱地春小麦新品种甘春25号,原代号A005-1,为甘肃农业大学与会宁县农牧局合作,以会宁15号为母本,五月黄为父本杂交,历时12年(1999 ～2011年)选育而成.2011年12月31日通过技术鉴定.2012年1月9～12日经甘肃省农作物品种审定委员会审定定名为甘春25号.该品种丰产性好,品质优,抗旱、抗病、抗倒性强,千粒重高,成熟落黄好.2009、2010年2年22点(次)国家西北春麦旱地组区域试验中,折合产量平均3 185.40 kg/hm2,较统一对照定西35号增产9.06％,2011年参加国家西北春麦旱地组生产试验,5点(次)均表现增产,折合平均产量1 936.35 kg/hm2,较统一对照定西35号增产18.01％,居参试材料第1位,增产显著.2010年在干旱半干旱地区对甘春25号进行了适宜密度和施肥量的研究,当种植密度为375万株/hm2、磷酸二胺施量为96 kg/hm2时,产量最高,为1 985.69 kg/hm2.%High-quality dryland spring wheat variety Ganchun No. 25, the original code is A005-1, selected by Gansu Agricultural University and Huining Agriculture and Animal Husbandry Bureau with the parental combination of Huining No. 15 and mature of May for 12 years( 1999-2011) , passed technical appraisal in December 31, 2011 and named Ganchun No. 25 by Gansu Provincial Crop Variety Approval Committee during January 9-12, 2012. This variety has high productivity, good quality, drought tolerance, disease resistance, lodging resistance, high grain weight, mature yellowing. The average yield is 3 185.40 kg/hm2, more than CK (Dingxi 35) by 9.06% , in regional trial from 2009 to 2010,1 936.35 kg/hm2 and more than CK (Dingxi 35) by 18.01% in production demonstration in 2011. The study on Ganchun No. 25 of suitable density and amount of fertilizer in the arid and semi-arid regions showed that when planted density is 3. 75 million plants/hm , ( NH4) 2HPO4 is 96 kg/hm2, the yields is the highest reached 1 985. 69 kg/ hm2.