荷花传统上多以莲子、主藕来繁殖,后来,用子藕、莲鞭等进行扦插繁殖的方法也逐渐问世。到今天,用顶芽繁殖等新技术又成为人们致力研究的课题。在这方面,我们做了些有益的尝试,现介绍如下: 一、顶芽繁殖的植物学基础荷花顶芽呈长锥形,实际上是一个极为缩短的枝条,外被以鳞片(即芽鞘),中为芽轴,芽轴顶端为生长点,生长点能分化出叶原基、腋芽原基及花原基。鳞片具有发达的薄壁组织和气腔,起到了很好的保护、贮藏和通气作用。芽轴的各节上均有鳞片,其内又都包着次一级的顶芽,这样,“芽”内套“芽”,即形成层层相套的复什结构。此外,在芽轴基部(即茎上的节部)内还孕育着不定根原基,这一原基是在维管囊一端发生,以后穿过薄壁组织及气腔突出表皮,形成 Traditionally lotus lotus seeds, lotus root to reproduce, and later, with lotus root, lotus root and other cutting propagation methods are also available. To date, new technologies such as breeding of top buds have become the subject of people’s dedication. In this regard, we have done some useful attempts, are described below: First, the top botanic end bud reproductive Lotus bud is long conical, in fact, is a very short branches, the outer layer of scales (ie, sheath ), In the bud axis, Bud shaft top for the growth point, the growth point can differentiate leaf primordium, axillary bud primordium and flower base. Scales have developed parenchyma and air chamber, played a very good protection, storage and ventilation. Each section of the bud shaft has scales, which are also covered with a sub-level of the top bud, so that “bud” inner sleeve “bud”, that is, the formation of layers of sets of complex structure. In addition, adventitious root primordium is also conceived at the basal part of the bud shaft (ie, on the stem portion of the stem), which primordium occurs at one end of the vascular capsule and then protrudes through the parenchyma and air cavity to form the epidermis