摘要
试验设2000,2500,3000,3500,4000和4500株/666.7m2共6个密度,研究密度对鲜食糯玉米产量的影响。结果表明,密度处理间产量差异达极显著水平,品种间产量差异达极显著水平。在低密度稀植条件下,糯玉米双穗率较高,但第二果穗易出现畸形,难以形成有效产量。在高密度条件下,糯玉米产量较高,但果穗短,秃顶长,商品外观性差。在适宜密度条件下,叶面积指数(LAI)动态变化合理,既能保证糯玉米取得高产,又能保证糯玉米果穗加工或鲜食要求。
The experiments of table waxy corn yield under different planting densities were carried out in order to get high yield and good corn ear appearance under rational close planting. The results showed that there was a very significant difference in seed yields between different planting densities. The rate of two ears a plant was high and misshapen second ears commonly occurred under low planting density. Under high planting density the yield was high but the ear was short,, the bare tip was big and the ear appearance was poor. Under rational planting density the dynamic change of leaf area index was rational, and a high yield and a good ear appearance could be obtained.
出处
《上海农业学报》
CSCD
2005年第3期64-67,共4页
Acta Agriculturae Shanghai
基金
国家农业科技成果转化资金项目(编号04EFN213100091)资助
关键词
糯玉米
密度
产量
Table waxy corn
Planting density
Yield
