We usually use allium cepa root tip, as experimental material to observe the plant cell mitosis.

观察植物细胞的有丝分裂,常用的实验材料是洋葱根尖.

Furthermore, former researchers always ignored the possible effects of age and experimental material on results.

而且, 以往的概念结合实验一般都不考虑年龄和实验材料可能对结果的影响.

Red flesh plum fruits as experimental material, the anthocyanin accumulation and related factors were analyzed systemically.

以红肉李果实为研究对象，对果实中花青苷积累规律及其影响因素进行系统分析。

Red flesh plum fruits as experimental material , the anthocyanin accumulation and related factors were analyzed systemically.

以红肉李果实为研究对象,对果实中花青苷积累规律及其影响因素进行系统分析.

The ultrastructural features of wheat interacting with stripe rust fungus were studied by using typical wheat cultivars of high-temperature resistance to rust as experimental material.

用典型小麦高温抗锈性品种作试材，研究了它们与条锈菌互作的超微结构。