密度对不同玉米品种果穗维管束结构的影响

研究表明,密度对玉米果穗维管束的数目、面积影响显著,高密度下,三品种穗柄、穗轴内的大维管束数显著减少,单个大维管束的平均面积著降低;不同类型品种间对密度的反应有差异,平展大穗型品种沈单7号受密度影响最大,而紧凑型品种掖单13号、掖单4号则表现出较耐密植的特点。

The Influence of Plant Density on the Ear Vascular Bundle of Different Types of Maize

Study shows that plant density had a significant effect on the number and area of ear vascular bundle. The number of big vascular bundle and the average area of single big vascular bundle in ear-pedical and axis were noticeably decreased under high plant density. The responses of different types to density was different, flat-type Shendan No. 7 was severely influenced by high plant density while compact-type Yedan No. 4 and Yedan No. 13 showed a well endurance to high planting density.