美国杏李高接换种及无公害丰产栽培技术

目的]为了提高美国杏李的产量及其品质。方法]用高接换种改造的方法,通过4年试验,研究了美国杏李不同时期不同嫁接方法的无公害丰产栽培技术。结果]早春各种嫁接方法成活率为90%以上,立秋前后是芽接的适宜季节,初夏芽接,当年冠幅明显低于其他嫁接方法。结论]美国杏李高接换种的最佳时期是早春3月上旬,带木质部芽接法平均产量较高,劈接、插皮接次之。

Varietal Substitution by High Grafting and Non-polluted and High Yield Cultivation Technologies of American Pluot

Objective The purpose of the study was to enhance the yield and quality of American pluot.Method Through the alteration experiment with varietal substitution by high grafting for 4 years,the non-polluted and high yield cultivation technologies of American pluot with different grafting methods in different stages were studied.Result Survival rates of all kinds of grafting methods were over 98% in early spring.The period before and after autumn begins was suitable season for bud grafting.If the bud was grafted in early summer the crown width in the year was smaller than that by other grafting methods.Conclusion The optimum period for varietal substitution by high grafting of American pluot was the first ten days of March in early spring and the average yield of bud grafting with xylem was higher and that of chop grafting and cortex inserted grafting was next.