论文部分内容阅读
用低浓度（０．２％）秋水仙素溶液较长时间于温箱中处理华椒１７种子及幼芽，使其染色体结构发生变异，从变异群体中选出优良性状的单株，育成的Ｍ－Ⅲ株系，其主要性状均能稳定遗传，产量极显著地高于华椒１７和湘研１号（杂交种），果色、果肉比华椒１７增深、增厚，果实商品性进一步提高。用Ｇ──显带法比较了华椒１７和Ｍ２－Ⅲ的Ｇ──显带核型，两者之间的部分染色体在臂比、着丝粒位置等方面具有明显的差异。
With a low concentration (0.2%) of colchicine solution for a long time in the incubator treatment of 17 Chinese prickly ash and saplings, the chromosomal structure of variation, selected from the mutant population of fine traits, breeding The main characters of M-Ⅲ were stable and their yield was extremely significantly higher than that of Huazao 17 and Xiangyan 1 (hybrids). The fruit color and fruit flesh were deeper and thicker than that of Jiaojiao 17, and the commerciality of fruit was further improved . G-banding method was used to compare the G-banding karyotypes of Zanthoxylum 17 and M2-Ⅲ, and some of the chromosomal differences between the two were significant differences in arm ratio and centromere.