不同玉米品种的耐密性比较  

Study on Density Tolerance of Different Maize Varieties

作　　者：英敏 任洪 毕世敏[2] 王良平 李星 

机构地区：[1]贵州省旱粮研究所,贵州贵阳550006 [2]遵义市农业科学研究所,贵州遵义563102 [3]铜仁地区农业科学研究所,贵州铜仁554304 [4]黔东南州农业科学研究所,贵州凯里556000

出　　处：《贵州农业科学》2010年第7期43-44,49,共3页Guizhou Agricultural Sciences

基　　金：贵州省科技厅"贵州省粮食(水稻;玉米)高产示范工程"[黔科合重大专项字(2009)6001]

摘　　要：为比较不同玉米品种的耐密性,筛选耐密品种应用于生产,在遵义、铜仁和凯里3个地点对8个玉米品种进行耐密性比较试验。结果表明:所有品种在4 400株/667m2的密度下,产量均高于3 300株/667m2密度条件。中单808和先玉508适应性和丰产性较强,在4 400株/667m2和3 300株/667m2密度下都可以取得较高产量;黔259在密度高的条件下,增产更加突出。Eight maize varieties were tested under different densities to screen density tolerance varieties for maize production by comparing their density tolerance in Zunyi,Tongren and Kaili.The results showed that the yields of all tested maize varieties under 4400 plants/667 m2 was higher than that under 3300 plants/667 m2,Zhongdan 808 and Xianyu 508 with good adaptability and yielding ability could obtain higher yield under 4400 plants/667 m2 and 3300 plants/667m2,and the increasing yield effect of Qian 259 was significant under higher density.

关 键 词：贵州东部 玉米品种 耐密性 密度 高产 

分 类 号：S513[农业科学—作物学]