耐密高产玉米新品种荣鑫338的选育及配套栽培技术.doc
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耐密高产玉米新品种荣鑫338的选育及配套栽培技术
摘要 荣鑫338是以A101为母本、以B101为父本组配育成的耐密中熟玉米新品种,2008―2009年参加山西省玉米区试试验,2年平均产量13 396.5 kg/hm2,比对照郑单958增产1.8%。2008―2009年参加山西南部复播玉米区域试验,2年平均产量9 508.5 kg/hm2,比对照增产6.1%。2009年进行生产试验,平均产量9 796.5 kg/hm2,比对照增产5.2%。在生产中表现出高产、优质、抗病、生育期适中等的特点,同时在多年高产创建的基础上,总结提出了荣鑫338配套高产栽培技术,实现了优良品种与高产栽培技术组装集成。
关键词 玉米;耐密高产;荣鑫338;品种选育;栽培技术
中图分类号 S513;S233.73 文献标识码 B 文章编号 1007-5739(2016)19-0054-02
Abstract Rongxin338 was a density-bearing and middle maturing maize developed by cross-breeding with A101 as its maternal plant and B101 as its paternal plant. The mean yield was 13 396.5 kg/hm2 in Shanxi Province regional test from 2008 to 2009,1.8% higher than that of the control variety Zhengdan958.And The mean yield was 9 508.5 kg/hm2 in the south regional trial of Shanxi Province multiple cropping test from 2008 to 2009,6.1% higher than that of the control variety Zhengdan958.And its mean yield was 9 796.5 kg/hm2 in the production test of 2009,5.2% higher than that of the control variety Zhengdan958. The cultivator has the features of high yield,good quality,disease-resistance,moderate growth period etc..At the same time,the high-yielding cultivation technology of Rongxin338 was stated after about several years of high-yielding technology research to achieve tiny varieties combining with suitable cultivation method. It is suitable for planting in spring maize area of Shanxi Province.
Key words maize;density-bearing and high yield;Rongxin338;variety breeding;cultivation techniques
目前,种子市场以郑单958和先玉335为代表的耐密型玉米品种占据主导地位,育种家们主要以此为目标来选育新品种。据不完全统计,截至2009年,山西省玉米播种面积已逾133.3万hm2,产量占全省粮食总产量的60%以上。仅晋东南地区玉米播种面积即达28万hm2。若采用耐密型品种,晋东南地区每年将增加玉米产量42万t;若推广到全省,玉米产量可增加699万t[1-3]。山西省农科院玉米研究所山西瑞普种业有限责任公司经过6年的选育,成功选育出耐密高产新品种荣鑫338,于2010年5月通过山西省农作物品种审定委员会五届七次会议审定(审定编号:晋审玉2010029)。
1 育种目标和技术路线
育种的最终目标是培育出高产、优质、高抗、适应性广的优良品种,选育适合在山西省中晚熟区春播种植的玉米杂交种。要求配组的母本自身产量高、抗性好、株高及穗位适中,父本早熟耐密,配合力高。同时在玉米高产创建的基础上开展高产高效栽培技术研究,发挥玉米新品种的增产潜力,实现良种良法配套组装集成[4]。
采用的育种技术路线是定位于主导育种模式“Reid×Lancaster”,以选育抗逆
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