有时，伯班克通过把不同的果树枝嫁接在一起加快自然的进程。
1·Careers in this field include ecologist, conservationist, taxonomist, horticulturist, agronomist, plant geneticist, and many others.
在这一领域的工作机会包括生态学家，保育，分类学家，园艺家，农学家，植物遗传学家，等等。
2·But Burbank (American horticulturist) decided that he could produce the trees.
但伯班克(美国园艺家)断定他能够生产出这些树。