农学学报2012，Vol.2Issue(5)：32-35,4.
旱地不同种植密度对中晚熟矮秆高粱品种农艺性状及产量的影响
Effects of Planting Density on Agronomic Characters and Yield of Middle-late Maturing Short-Stalked Sorghum in Dry Areas
摘要
Abstract
The suitable combination of planting density was favorable for the yield increase of sorghum cultivar. In order to determine rational planting density of sorghum and to fully develop yield-increasing effect, a field trial with a sorghum variety‘Jinzhong 911’was conducted in Taigu, Shanxi Province, China to investigate the effects of different planting densities （ranging from 75000 to 150000 plants/hm2） on main agronomic characters and yield in a randomized block design. The results showed that with the increase of planting density, stem diameter tended to decrease, while the plant height, leaf area and leaf number seen no significant change in trend. The effects of planting density on yield traits were mainly 1000-kernel weight and weight/panicle, and yield both showed a significant negative correlation, and both have a higher impact coordination on yield. In the late-maturing sorghum growing areas of dry land, by increasing planting density could significantly increased grain yield. It was concluded that when planting density 15.00 × 104 plants/hm2, the highest sorghum grain yield. The study of middle-late maturing short-stalked sorghum in dry areas to increase plant density provides a theoretical and technical support.关键词
矮秆/高粱/种植密度/产量/变异系数Key words
Short-stalked/Sorghum/Planting Density/Yield/Variation Coefficient分类
农业科技引用本文复制引用
刘贵锋,白文斌,赵建武,王金转,郑香萍,申慧勇..旱地不同种植密度对中晚熟矮秆高粱品种农艺性状及产量的影响[J].农学学报,2012,2(5):32-35,4.基金项目
山西省科技厅科技成果推广计划项目“酿造高粱新品种‘晋杂23号’推广” （）
山西省农业科学院重点项目“黄土旱塬地优质高粱丰产增效生产关键技术集成研究与示范” （）
