由澳洲坚果高接换种试验研究表明：7种嫁接方法中合接和改良切接的嫁接成活率最高达38．9%；

Experiment on top grafting of Macadamia integrifolia showed that the survival rate could reach the highest (38.9%)with splice grafting and joint grafting of 7 grafting methods.

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They knew the techniques for grafting and improving, and domesticating species of grapes and olives particularly.

他们知道植物嫁接和改良的工艺,和为葡萄和橄榄培育良种的技术

耶鲁公开课 - 古希腊历史简介课程节选