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近年来,我省山楂生产发展迅速,山楂苗曾一度供不应求。随之产生了山楂品种良莠混杂问题,新建山楂园中劣种较多,非园艺性状突出,大大降低了山楂果的产量和质量。许多地区采用高接法或换头等,改劣换优,力图挽回败局,实践证明是有效的途径。山楂高接法为种内嫁接,亲缘关系近,成活率较高。为使推广此法时抓住技术要点,进一步提高成活率,我们进行了本项试验。主要探讨影响高接成活的因素,以及恢复树冠、形成产量的规律。现将试验结果介绍如下,供参考。
In recent years, hawthorn production in our province has developed rapidly, hawthorn seedlings once in short supply. As a result, hawthorn varieties are mixed with each other. The new hawthorn garden has more inferior species and prominent non-horticultural traits, which greatly reduces the yield and quality of hawthorn fruit. In many areas, high-handedness or head-to-headmanship are adopted, mercenary schemes are changed, and attempts are made to save the losses. Practice proves to be an effective way. Hawthorn high access for species within the grafting, kinship close, higher survival rate. In order to promote this method to seize the technical points to further improve the survival rate, we conducted this test. Mainly to explore the factors that affect the survival of the high, as well as the restoration of canopy, the formation of the law of production. The test results are introduced below, for reference.