Compared with inundatory condition,aerobic condition retarded the formation of aerenchyma of hybrid rice roots and made the cortex sclerenchymatous cells array loosely in conventional japonica root.

• 与淹水条件相比,旱作条件下杂交稻根通气组织形成较迟,常规粳稻根皮层厚壁细胞排列较疏松。