不同种植密度对早熟玉米‘晋单84号’产量及品质的影响  

Effect of Different Density on the Yield and Quality of Early Maturing Maize‘Jindan No.84'

作　　者：郑丽萍[1] 田森林[1] 李爱军[1] 李作一[1] 穆婷婷[1] 

机构地区：[1]山西省农业科学院高粱研究所,山西晋中030600

出　　处：《中国农学通报》2014年第3期201-204,共4页Chinese Agricultural Science Bulletin

基　　金：山西省2011年科技攻关计划项目"早熟;抗旱玉米自交系的创制及新品种选育"(20110311002-2);山西省农业科学院育种工程项目"早熟;抗旱及粮饲兼用玉米新品种选育"(11yzgc027)

摘　　要：为了研究不同种植密度条件对早熟玉米‘晋单84号’生长性状及品质的影响,以玉米品种‘晋单84号’为试验材料,在4.5万株/hm2、5.25万株/hm2、6万株/hm2、6.75万株/hm2、7.5万株/hm25个不同种植密度条件下,研究‘晋单84号’的农艺性状表现、产量及籽粒品质的变化规律。结果表明‘:晋单84号’的产量随着种植密度的增加呈先增加后减少的趋势,在密度6.75万株/hm2时最高,为12825.8 kg/hm2;籽粒品质蛋白质含量随密度增大表现为逐渐下降的趋势;粗脂肪含量表现为与密度负相关的变化趋势;粗淀粉含量在6.75万株/hm2密度下达到最高73.4%。以上试验研究为确定‘晋单84号’在山西中部地区最适宜密度及高产栽培提供科学依据。In order to study the impact of different planting densities of early maturing maize‘Jindan No.84’ growth traits and quality,we take new varieties of early maturing maize‘Jindan No. 84’as experimental material,the effect of different planting density on yield,agronomic traits and quality were studied under the five different planting density conditions. Planting density respectively were 45000 plants/hm2,52500 plants/ hm2,60000 plants/hm2,67500 plants/hm2.The results showed that,the yield of‘Jindan No. 84’first increased and then decreased with the increasing of planting density,when the density of 67500 plants/hm2achieved the highest yield of 12825.8 kg/hm2. With the increasing of planting density,the protein and crude fat contents in ‘Jindan No. 84’decreased and the highest starch content of 73.4% at 67500 plants/hm2. This experimental in order to determine the optimum density of‘Jindan No. 84’in central Shanxi Province,and provide a scientific basis for high-yield cultivation.

关 键 词：玉米 种植密度 籽粒品质 产量 农艺性状 

分 类 号：S311[农业科学—作物栽培与耕作技术]