播种密度对谷子农艺性状及产量的影响  

Effects of Sowing Density on Agronomic Characters and Yield of Millet

作　　者：刘鑫[1] 成锴 王振华[1] 刘红 王枫叶 田岗 李会霞 王玉文 余爱丽 张鹏[1] LIU Xin;CHENG Kai;WANG Zhen-hua(Millet Research Institute,Shanxi Agricultural University,Changzhi,Shanxi 046011)

机构地区：[1]山西农业大学谷子研究所,山西长治046011

出　　处：《安徽农业科学》2020年第23期54-56,共3页Journal of Anhui Agricultural Sciences

基　　金：山西省重点研发计划重点项目(201703D211002-6);国家谷子高粱产业技术体系(CARS-06-13.5-A23);山西省农业科学院创新项目(YCX2018414);山西省农科院农业科技创新工程(YGC2019KQ01);山西省重点研发计划项目(201803D221019-3)。

摘　　要：[目的]探索谷子在不同播种密度条件下农艺性状及产量的变化情况。[方法]以长生13为材料,设置60万、57万、54万、51万、48万、45万株/hm 26个不同的播种密度,研究播种密度对谷子农艺性状、单株干物质量及产量的影响。[结果]长生13随着播种密度从60万株/hm 2到45万株/hm 2的逐渐减小,株高变化不显著,穗长、穗粗、千粒重均随着播种密度减小而增加;单株干物质量总体趋势是播种密度越小,单株干物质量越大;产量随播种密度减小先略有提高,后降低,再有较大提高,在播种密度45万株/hm 2时达到最高。[结论]长生13产量在播种密度45万株/hm 2时达到最高。该研究可为谷子高产栽培技术的进一步研究提供理论基础。[Objective]To explore the changes in agronomic characteristics and yield of millet under different sowing densities.[Method]Using Changsheng 13 as the material,six different sowing densities of 600000,570000,540000,510000,480000,450000 plants/hm 2 were set to study the effects of planting density on the agronomic characters,dry matter quality per plant and yield of millet.[Result]As the sowing density of Changsheng 13 gradually decreased from 600000 plants/hm 2 to 450000 plants/hm 2,the plant height did not change significantly,and the ear length,ear diameter,and 1000-grain weight all increased with the decrease of the sowing density;the general trend of dry matter quality per plant was that the lower the sowing density,the greater the dry matter mass per plant;with the decrease of sowing density,the yield increased slightly at first,then decreased,and then increased greatly,reaching the highest when the sowing density was 450000 plants/hm 2.[Conclusion]The yield of Changsheng 13 reached the highest when the sowing density was 450000 plants/hm 2.This research can provide a theoretical basis for further research on high-yield cultivation techniques of millet.

关 键 词：播种密度 谷子 农艺性状 产量 

分 类 号：S515[农业科学—作物学]