亚麻(Linum usitatissimum L.)在我国栽培历史悠久,品种类型较多。尤其是经过近几十年大量的育种工作,已育成不少丰产性高、品质好、抗逆性强的品种,并逐步得到推广。关于亚麻染色体的数目,曾有2n=30,2n=32,2n=60的报道。作者选用了交城胡麻和晋亚3号两个品种作为试验材料进行了 Flax (Linum usitatissimum L.) cultivation in our country has a long history, more types of varieties. Especially after a large number of breeding work in recent decades, a number of cultivars with high yield, good quality and strong resistance have been bred and gradually popularized. Regarding the number of flax chromosomes, there have been 2n = 30,2n = 32,2n = 60 reports. The author chose Jiaocheng flax and Jinya 3 as test materials