镁及镁与芸苔素内酯配合对香蕉幼苗生长的影响

Effect of applying magnesium fertilizer and magnesium fertilizer brassinolide compound on the growth of young banana plants

镁和芸苔素内酯是植物生长发育的重要营养与调节物质。通过对威廉斯香蕉苗期施用镁肥和芸苔素内酯进行研究,结果表明:镁肥和芸苔素内酯均能提高叶片抽生速度,促使假茎伸长、增粗和叶片增厚,并能提高单株干物质积累量;二者配施效果更明显。

Magnesium and brassinolide（BRs） are important nutrition and regulator in plant growth and development. The magnesium fertilizer and brassinolide were applied on Williams banana at young plant stage. The results showed that both magnesium fertilizer and brassinolide could increase the growth rate of leaf, the elongation and wideness of cauloid and the thickness of leaf, and the accumulation of dry matter per plant. The effect was more significant by applying magnesium fertilizer mixed with brassinolide.