The answer is: through grafting.

答案就是：通过嫁接。

youdao

Through grafting, the grapefruit tree is another plant that depends on grafting to reproduce.

通过嫁接，葡萄柚树是另外一种通过嫁接生殖的植物。

youdao

Many fruits and nuts have been improved through grafting. Flowers can also be improved this way.

许多水果和坚果仁就是通过嫁接的方式得到优良的品种。各种花也可以通过这种方式进行嫁接。

youdao

Many fruits and nuts have been improved through grafting.

VOA: special.2010.05.18

He created a new architectural language for the government buildings in Dhaka, Bangladesh, grafting a new democracy to the roots of an ancient civilization through archetypal brick forms.

WSJ: Ancient Modernism | 'Louis Kahn: The Power of Architecture' | Vitra Design Museum, Germany | By Colin Amery