CAJ | 학술논문

密度是影响糜子分蘖和产量的重要因素之一。为了探索糜子高产个体和群体特性，以榆糜2号为材料，设置3种种植密度（M1：基本苗15万株·hm-2、M2：45万株·hm-2、M3：75万株·hm-2），研究了不同种植密度下糜子农艺性状、产量性状及冠层温度间的差异。试验结果表明，不同种植密度下，糜子灌浆期群体冠层温度表现出明显差异，同一生育时期总体表现为M1＞M2＞M3。不同种植密度下，糜子单株农艺性状和产量性状也存在较大差异，低密度（M1）下，糜子单株生长势较强，分蘖成穗率较高，单株穗重及单株粒重较大；随着密度的增加，分蘖成穗率降低，单株穗重及单株粒重较小，但高密度（M3）下群体产量较高。因此生产上应根据品种特性通过单位面积株数、穗数及粒重的协调发展实现作物的高产优质。
밀도시영향미자분얼화산량적중요인소지일。위료탐색미자고산개체화군체특성，이유미2호위재료，설치3충충식밀도（M1：기본묘15만주·hm-2、M2：45만주·hm-2、M3：75만주·hm-2），연구료불동충식밀도하미자농예성상、산량성상급관층온도간적차이。시험결과표명，불동충식밀도하，미자관장기군체관층온도표현출명현차이，동일생육시기총체표현위M1＞M2＞M3。불동충식밀도하，미자단주농예성상화산량성상야존재교대차이，저밀도（M1）하，미자단주생장세교강，분얼성수솔교고，단주수중급단주립중교대；수착밀도적증가，분얼성수솔강저，단주수중급단주립중교소，단고밀도（M3）하군체산량교고。인차생산상응근거품충특성통과단위면적주수、수수급립중적협조발전실현작물적고산우질。
Density is one of the important factors that affecting the yield and tillers of proso millet. In order to explore the high yield individual and population characters,Yumi 2 was used as the experimental material to analyze the differences between agronomic traits,yield characters and canopy temperature under the densities (M1 15 000 s·hm-2,M2 45 000 s·hm-2,M3 75 000 s·hm-2). The results showed that there were the significant differences of canopy temperature under different destinies in filling stage,and the canopy temperature showed M1>M2>M3 at same growth period. The differences were observed about agronomic traits and yield characters of single plant under different densities. The single plant had the stronger growth vigor,higher percentage of available tiller,heavier single plant spike weight and grain weight per plant under M1. The percentage of available tiller,single plant spike weight and grain weight per plan was decreased with density increasing,but the yield was highest under M3. So the high yield and high quality should be based on the coordinated development of density,numbers of panicles and grain weight on practical production.