论文部分内容阅读
鸡桑枝条扦插比其它桑品种容易生根,成活率高达90%以上.对鸡桑、湖桑32号、桐乡青,南一号、广东桑等枝条解剖表明,鸡桑的皮孔特别大,皮部、韧皮部、木质部均薄,髓部极大,髓射线多,扦插后其皮层、形成层、木质薄壁组织、髓射线交界处均有细胞分裂分化形成新根.我们认为,鸡桑扦插成活率高与其枝条解剖构造有密切关系,与扦插容易生根的葡萄、夹竹桃、泡桐、刺桐、黄桷树等枝条解剖构造相近。
The cuttings of chicken mulberry branches are easier to root than other mulberry varieties, and the survival rate is as high as 90% .Analyses of the branches of chicken mulberry, Husang 32, Tongxiang Qing, South No.1 and Guangdong mulberry show that the mulberry skin is particularly large, Department of phloem, xylem are thin, great pith, medullary ray more, after cutting its cortex, the formation of layers, wood parenchyma, medullary ray junction cells divide and differentiate to form a new root .In our opinion, The high rate is closely related to the anatomical structure of its branches and similar to the anatomical structures of the branches such as grape, oleander, paulownia, catharanthus roseus, which are easily rooted by cutting.