郑单958和先玉335在高纬寒地的适应性研究  

Study on Adaptability of Zhengdan 958 and Xianyu 335 in High Latitude and Cold Area

作　　者：蔡鑫鑫[1] 吕晓丽[1] 谭娟[1] 王舒[1] 张崎峰[1] 刘显元[1] 太万红 CAI Xin-xin;LYU Xiao-li;TAN Juan;WANG Shu;ZHANG Qi-feng;LIU Xian-yuan;TAI Wan-hong(Heihe Branch,Heilongjiang Academy of Agricultural Sciences,Heihe 164300,China;Agricultural Technology Popularization Station of Heihe City,Heihe 164300,China)

机构地区：[1]黑龙江省农业科学院黑河分院,黑龙江黑河164300 [2]黑龙江省黑河市农业技术推广总站,黑龙江黑河164300

出　　处：《黑龙江农业科学》2020年第4期11-14,共4页Heilongjiang Agricultural Sciences

基　　金：国家玉米产业技术体系(CARS-02-05B)。

摘　　要：为指导玉米品种合理布局,以黑河地区主推品种德美亚1号为对照,研究了种植密度对玉米全生育期及产量的影响,探讨郑单958和先玉335在高纬寒地的适应性。结果表明:先玉335在密度增加至75000株·hm-2时,产量最高,继续增加密度,千粒重降低,产量逐渐下降。但郑单958和先玉335没有达到生理成熟,不适宜在高纬寒地种植,这也进一步限定了郑单958和先玉335的种植北限。In order to guide the rational distribution of maize varieties,taking the main varieties of Demeiya No.1 in Heihe area as control,the effect of planting density on the whole growth period and yield of maize was studied,and the adaptability of Zhengdan 958 and Xianyu 335 in high latitude and cold area was discussed.The results showed that when the density increased to 75000 plants·hm-2,the yield of Xianyu 335 was the highest,the density continued to increase,the 1000 grain weight decreased,and the yield gradually decreased.Zhengdan 958 and Xianyu 335 did not reach physiological maturity and were not suitable for planting in high latitude and cold area,which further limited the planting north limit of Zhengdan 958 and Xianyu 335.

关 键 词：玉米 密度 产量 

分 类 号：S51[农业科学—作物学]