摘要
【目的】探讨3种不同株型鲜食糯玉米品种的适宜种植密度,为鲜食糯玉米的种植提供参考。【方法】采用双因素裂区设计,主处理设5个密度,副处理设3个品种,调查鲜食糯玉米生育期、株高、穗长和产量等性状。【结果】随着密度的增加,穗长、穗粗、行数、行粒数、千粒重逐渐减小,秃尖长、株高和穗位高逐渐增加,生育期略有延长。高秆大穗型品种京科糯2000种植密度为48000株/ha时产量最高,达12787.7kg/ha;矮秆型品种都市丽人种植密度为60000株/ha时产量最高,达10473.0kg/ha;紧凑型品种玉美头601种植密度为54000株/ha时产量最高,达12214.4kg/ha。【结论】高秆大穗型品种京科糯2000、矮秆型品种都市丽人和紧凑型品种玉美头601的适宜种植密度分别为48000～54000、54000～60000和54000～60000株/ha。
[Objective]The present experiment was conducted to find out the optimum planting density for 3 different types of fresh edible waxy corn in order to optimize their production practices.[Method]Two-factor split-plot design experiment was conducted to study the major agronomic characteristics,viz.,growth period,plant height,ear length and yield using five planting densities（42000,48000,54000,60000 and 66000 plants/ha） and three varieties（Jingkenuo 2000,Dushiliren and Yumeitou 601）.[Result]The results showed that ear length,ear diameter,rows per ear,kernels per row and 1000-kernel weight reduced gradually with increasing the planting density,while barren ear tip,plant height and ear height increased gradually,and growth period extended slightly.Three corn varieties,viz.,Jingkenuo 2000（high-stalk type maize）,Dushiliren（dwarf type maize） and Yumeitou 601（compact type maize） recorded the highest yield as 12787.7,10473.0 and 12214.4 kg/ha when planted with 48000,60000 and 54000 plants/ha planting density,respectively.[Conclusion]It was concluded that 48000-54000,54000-60000 and 54000-60000 plants/ha were suitable planting density for varieties Jingkenuo 2000,Dushiliren and Yumeitou 601,respectively.
出处
《南方农业学报》
CAS
CSCD
北大核心
2012年第3期315-317,共3页
Journal of Southern Agriculture
基金
国家现代农业产业技术体系广西创新团队(玉米)玉林综合试验站项目(2011)
关键词
鲜食糯玉米
株型
种植密度
性状
生育期
产量
fresh edible waxy corn
plant type
planting density
agronomic traits
growth period
yield
