论文部分内容阅读
山楂树性强健,枝条脆硬,萌芽力中等,成枝力强,具顶端结果特性。苗木定植后,缓苗易,次年冒长条,扩冠快,分枝少,易光秃,树冠不紧凑,结果部位易外移,如不加控制,对幼树密植丰产将带来困难。为了探讨植物生长调节剂乙烯利对山楂幼树促花、控冠、增产的效果,在加强土、
Hawthorn strong, hard brittle branches, sprouting medium, strong branch, with the top results of the characteristics. Seedling planting, the Huanmiao easy, the next year, take a long, fast expansion of the crown, fewer branches, easy to bald, crown is not compact, the results of the site is easy to relocate, such as uncontrolled, young plant close planting will bring difficulties . In order to investigate the effects of ethephon, a plant growth regulator, on promoting the flowering, controlling crown and increasing yield of hawthorn seedlings,