种植密度对不同玉米品种农艺性状及产量的影响

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关键词玉米品种；种植密度；农艺性状；产量中图分类号S513文献标识码A文章编号 0517-6611（2025）14-0029-04doi：10.3969/j.issn.0517-6611.2025.14.005

开放科学（资源服务）标识码（OSID）：

Effects of PlantingDensity on Agronomic Traitsand Yield of Different Maize Varieties

GUAN Cheng-ping，WANG Juan，LI Jia-li et al（Zhangye Academy of Agricultural Sciences，Zhangye，Gansu ）

AbstractObjective]oivestigatetheoptialplantingdensityndfurtrexploritsproductionpotential.Mtodeeweari tiessuchas Hongliang2，Heyu102，Heyu106andHeyu8 weretokas tematerals，andsetupsixlevelsofplantingdensitytostudyte effectsonmaiagroomictits，ieldndyieldomponents.Resultlantheight，aright，ndbarentipngthgerallowdan upwardtrendossallveisilengtharametendgrainweightdreasigwitieassoflatigsiye yieldfollwed“paraboli”paeSpecfcallthhghtyesweebsedinthHglang2andHey8varietisudrplanting density of 90 000 plants per hectare， reaching 18 289.00 and 17593.80kg/hm2 ，respectively.For the Heyu 1O2 variety，the highest yield was achieved at 17867.55kg/hm2 under planting densityof 82 5OO plants per hectare.The Heyu106 varietyatained its highest yield under planting density of 97 500 plants per hectare，with 1 9 701.15kg/hm2 . [Conclusion]The best planting density of Hongliang 2 and Heyu 108 was 90 000 plants per hectare，the best planting densityof Heyu 102 and Heyu106 were 82 50Oand9750O plants per hectare.

KeywordsMaize varieties;Planting density;Agronomic traits;Yield

玉米是我国种植面积最大，且总产量最高的第一大作物，发展玉米生产对于保障我国粮食安全占有举足轻重的地位[1]。（剩余6886字）