应用秋水仙素和二甲基亚砜混合液对中国西南地区的三种苦荞麦品种进行染色体加倍,获得了同源四倍苦荞新品系.与原种相比,同源四倍苦荞新品系具有发达的根系、较大的籽粒和高大植株,其产量得到明显提高.新品系的蛋白质、氨基酸、维生素经及其他药用成分的含量也有明显的提高.此外,新品系有较高的接实率,能稳定遗传,具有较强的抗逆能力. Chromosome doubling of three kinds of tartary buckwheat cultivars in southwestern China with colchicine and dimethyl sulfoxide was used to obtain a new strain of four-fold homology tartary buckwheat.Compared with the original one, The strain has a well-developed root system, larger kernels and tall plants, and its yield has been significantly increased.The content of protein, amino acids, vitamins and other medicinal ingredients in the new line has also been significantly improved.In addition, the new line has a higher Real rate, stable genetic, with strong resilience.