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。
The number of chloroplast and chlorophyll content in the dodecaploid are more than hexaploid, stomatal density are lower than 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。
They are complex polyploids, being partly tetraploid and partly hexaploid.
小麦与六倍体燕麦杂交其F1杂种植株体细胞染色体不完全排除，表明可以将燕麦优良基因导入小麦，以拓宽小麦的种质资源。
The somatic cell chromosomes in F1 hybrid plants indicated that good genes of oats can be introduced into the bread wheat to enrich the germ plasm resources of the wheat.
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