论文部分内容阅读
金丝小枣是我国特产,因其含糖量高,干枣掰开后能拉出金色糖丝而得名。它在国内久负盛名,并远销二十多个国家和地区。过去采用根蘖分株培育金丝小枣,繁殖系数低,利用酸枣做砧木嫁接繁殖,又易传染枣疯病。因而长期限制了金丝小枣的发展。为了解决苗木快速繁殖的问题,中国科学院植物研究所的王玉英、付凯、顾晓红等在河南新郑枣树所、河北省南皮县农林局的帮助下,利用金丝小枣休眠芽进行离体培养,芽萌动后发育成丛生芽,将带3—5片叶的嫩枝剪下,接种到生根培养基中,两周后就诱导出根。另外还得到了无核小枣,乐陵小枣,冬枣,大叶无核枣的外植体。正处芽的分化及根的诱导的试验过程中。他们从乐陵小枣茎段形成层细胞诱导出芽,进而培育成完整的植株(见下图)。
Jizi jujube is a specialty of our country, because of its high sugar content, dry jujube can pull out golden sugar after the name. It is prestigious in the country and exported to more than 20 countries and regions. Past the use of root tillers ramets jujube cultivation, breeding coefficient is low, the use of jujube rootstock grafting, but also easy to transmit jujube mad. Thus long-term limit the development of jasmine jujube. In order to solve the problem of seedling rapid propagation, Institute of Botany, Chinese Academy of Sciences, Wang Yuying, Fu Kai, Gu Xiaohong and other Henan Xinzheng jujube, Nanpi County, Hebei Province, Agriculture and Forestry Bureau with the help of dormant buds of jujube Bud sprouting developed into clusters of shoots, the shoots with 3-5 leaves cut, inoculated to the rooting medium, two weeks after the induction of roots. In addition, we also obtained the explants of seedless jujube, Leling jujube, jujube and big-leaf non-nuclear jujube. Is in the process of bud differentiation and root induction. They induced budding from the stem cells of the Leolingzao stem and grew into complete plants (see below).