无性系

例句：

1. 1. The plant is propagated through asexual reproduction, which is known as the "self-fertilization" of thespecies.
   这种植物通过无性繁殖进行传播，被称为该物种的“自交”。
2. 2. In nature, sexual reproduction is more common, but in some cases, asexual reproduction can be advantageous for certainorganisms.
   在自然界中，有性生殖更为常见，但在一些情况下，无性生殖对某些生物体是有利的。
3. 3. This method of propagation allows for the rapid growth and development of new plants without the need for pollination or fertilization.
   这种方法允许植物迅速生长和发育，而无需授粉或施肥。