油菜下胚轴与幼苗生长关系的初步探讨

• 作 者: 陈维培 张四美 严素珍 黄志和
• 机 构: 南京师范学院生物系,南京师范学院生物系,南京师范学院生物系,南京师范学院生物系
• 出 处: 江苏农业科技
• 发表日期: 1978年05期
• 关键词: 下胚轴 幼苗 油菜 植物形态解剖学 油菜幼苗 油莱 次生生长 轴体 主根 次生组织

一般认为,油菜幼苗期以营养生长为主,主要表现在叶片的生长和根系的增加。但是根据我们从植物形态解剖学的角度观察,作为主根与幼茎之间连接的轴体——下胚轴,它和根、叶一样是显示幼苗期营养生长特征的重要器官,并且对幼苗生长有很大的影响,它的形态、结构变化常会直接或间接地影响幼苗的长势和长相。因此,弄清楚下胚轴的内部结构、功能,摸清它的变化规律,以及这些变化与幼苗生产的内在联系,对于油莱的生产有一定的参考价值。现以甘兰型油菜宁油7号为材料,作如下探讨。

Generally believed that rapeseed seedlings to vegetative growth, mainly in the growth of the leaves and the root system. However, from the point of view of plant morphology and anatomy, as the axis-hypocotyl connecting the main root and the young stem, it is an important organ that shows the vegetative growth characteristics at the seedling stage like the roots and leaves, Has a great impact, its morphological and structural changes often directly or indirectly affect the growth and appearance of seedlings. Therefore, to clarify the hypocotyls of the internal structure, function, to find out its changing rules, as well as the inherent relationship between these changes and seedling production, oil Lai for the production of a certain reference value. Brandy Ningyou 7 is now the material for the following discussion.