tetraploid

a tetraploid species.

四倍体种

Tetraploid plants exhibited sighificant difference in morphology of flowers，pollens，stomates，shape and size of seeds and fruits comparted with the diploidy.

四倍体植株在花冠、气孔、花粉、种子和果实的形态和大小方面均二倍体植株现出明显的差异。