There were phloem fiber bundle of stem outside vascular bundles.

茎微管束外具韧皮纤维束；

Sepals contain several vascular bundles, and are thought to be derived from leaves.

根据萼片内的许多维管束结构，通常认为其由叶发育而成。

The number of vascular bundles in neck-panicle was mainly controlled by genetic factors.

穗颈维管束数主要受遗传因素控制，环境条件的影响相对较小。

Results show that the large parenchymatous cells of vascular bundles are the mainly storage site of aloin.

结果表明，叶维管束内的大型薄壁细胞为芦荟素的主要贮存结构。

Jinhui12 is an excellent parental candidate in improving the characteristic of neck-panicle vascular bundles.

缙恢12号是改良穗颈维管束性状的优良亲本。