stomatal size的用法和样例：
例句
- The stomatal size was positively related with the chromosomal ploidy.
气孔大小与染色体的倍性有一定的正相关关系。 - The stoma size and chloroplast number in guard cells could be regarded as the reliable indicators of ploidy levels to identify seedlings in the early stage.
再生植株叶片气孔大小和气孔保卫细胞内叶绿体数目可以作为从再生植株中早期鉴别四倍体植株的可靠指标。
