大华1409玉米新品种区域试验
2020-06-21王朋孙杰赵青
王朋 孙杰 赵青



摘要 玉米品种大华1409(原名DJ1409)是江苏省大华种业集团有限公司育种研究院最新通过审定的玉米单交种。为明确大华1409玉米在各区域的种植表现,对该品种进行了区域试验。结果表明,尽管试验期间天气条件不利,但是大华1409仍然表现出较好的丰产性和稳产性,在参加区域试验的年份,各试验点均较对照显著或极显著增产,增产点数为100%,增产幅度全部在5.0%以上。从产量构成因素上分析,大华1409的产量构成三因素相当协调,因而能够在大多数试验点获得较高的产量。受天气影响,个别试验点出现轻微空秆和倒伏现象,但总体在可接受的范围内。大华1409对目前江苏夏玉米主要病虫害均表现为R或HR,这也是其广适性的一个重要表现。
关键性 玉米;大华1409;性状;产量;抗性
中图分类号 S513.037 文献标识码 A
文章编号 1007-5739(2020)11-0036-02 开放科学(资源服务)标识码(OSID)
Regional Test of New Maize Variety Dahua 1409
WANG Peng SUN Jie ZHAO Qing
(Jiangsu Dahua Seed Enterprise Co.,Ltd Breeding Research Institute,Lianyungang Jiangsu 222344)
Abstract Dahua 1409(formerly known as DJ1409)is the latest single cross maize variety approved by the Breeding Research Institute of Dahua Seed Industry Group Co.,Ltd. in Jiangsu Province. In order to clarify the performance of Dahua 1409 maize in different regions,the regional test of this variety was carried out. The results showed that despite the adverse weather conditions,Dahua 1409 still showed good characteristics of high and stable yield. In the regional test,the yield of each test point increased significantly or extremely significantly compared with the control,the number of yield-increasing points was 100%,and the increase range was all over 5.0%. From the analysis of yield components,the three factors of yield components of Dahua 1409 were quite coordinated,so it obtained higher yield in most test points. Under the influence of weather,some test points showed slight empty culm and lodging phenomenon,but generally within the acceptable range. Dahua 1409 showed R or HR to the main diseases and insect pests of summer maize in Jiangsu Province,which was also an important performance of its wide adaptability.
Key words maize;Dahua1409;character;yield;resistance
玉米新品種大华1409是江苏省大华种业集团有限公司育种研究院最新选育的玉米单交种,该品种历经2016年、2017年2年区域试验和2018年生产试验,表现出了较好的丰产、稳产、高抗、广适的特性,并以特别优异的表现于2019年正式通过江苏省农作物品种审定委员会审定。经过多年多点试验示范,证明该品种具有高产、稳产、广适的优点,是一个极具推广价值的玉米新品种。本文通过分析大华1409参加区域试验时的表现,以期为该品种的科学推广提供参考[1-3]。
1 材料与方法
1.1 试验地情况
江苏省夏玉米区域试验共设10个试验点,分别为岗埠、神农、金色天华、睢宁、东辛、淮安、沭阳、保丰、丰县和宿迁。……
