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作 者 ：陆卫平;张其龙;卢家栋;王昭;宗寿余

期 刊 ：作物学报 1999年 25卷 06期 页码：718-722

关键词：玉米；根系；物质积累；产量；

Keywords:Maize, Root system, Dry matter accumulation, Grain yield,

摘 要 ：以玉米中熟种苏玉9号为材料，通过施氮量和种植密度处理，研究群体根系伤流强度动态和节根组成与物质积累、产量构成的关系。结果表明：玉米群体气生根数与节根量、灌浆结实期根系伤流强度、总粒数、抽丝后干物质积累量及产量呈正相关。生育过程中抽丝期的群体根系伤流量强度与抽丝后干物质积累量、总干物质积累量及籽粒产量

Abstract:The experiments with different densities and fertilizer levels were carried out on corn hybrid SuYu9 to investigate the activity of root system relating to dry matter accumulation and grain yield. The results showed that there were positive correlations between brace root number and total root numbe

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