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扦插繁殖是保持月季品种性状不发生变异的常用繁殖方法之一,容易进行集约化生产。但是,用传统方法生产的扦插苗长势弱,生长缓慢,很难应用于生产中,其主要缺陷在根系上。同嫁接时用做砧木的蔷薇根比较,蔷微根的数量多达15—20条,且直接着生在切口的形成层上;而扦插苗根的数量少,且大都着生在由形成层长出的愈伤组织上。愈伤组织内部结构排列不整齐,根通过它与枝干维管束连结,导致水份和营养物质疏导不畅,这是造成植株生长缓慢、长势弱的根本原因。实践证明,
Cutting propagation is one of the common breeding methods to keep the traits of roses without variation. It is easy to carry out intensive production. However, cutting seedlings produced by traditional methods have weak growth and slow growth and are difficult to apply to production. The main defect is root system. Compared with the rose root used as rootstock during grafting, the number of roses root is up to 15-20, and it is directly on the formation layer of the incision. However, the number of cuttings root is small, Growing on the callus. The internal structure of the calluses is irregularly arranged, and the root is connected with the branch vascular bundles through the bundles, leading to poor drainage of water and nutrients, which is the root cause of slow growth and weak growth of the plants. Practice shows that,