英语语法分析

They are complex polyploids, being partly tetraploid and partly hexaploid.

它们是复杂的多倍体，其中一部分是四倍体，一部分是六倍体。

However, there is no complete waxy mutant in hexaploid wheat under the natural condition and it need to be produced artificially.

然而，在自然条件下六倍体小麦中则无全糯质小麦存在，需要人工创造。

The number of chloroplast and chlorophyll content in the dodecaploid are more than hexaploid, stomatal density are lower than hexaploid.

同时，十二倍体较六倍体的叶绿体数目明显增多，叶绿素含量提高，但气孔密度减小。