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甜荞种子经60CO－γ射线照射后从10000RAD的剂量组中选出了两个优良高产突变体Ⅱ－45－1和Ⅲ－36－1.研究表明,Ⅱ－45－1、Ⅲ－36－1的过氧化物酶活性均比对照(未经辐照处理的甜荞种子)高2倍.过氧化物酶同工酶酶谱显示,Ⅱ－45－1和Ⅲ－36－1均比对照增加一条RF值为0.43的酶带,减少一条RF值为0.84的酶带.“,”Two fine high yielding mutants (Ⅱ 45 1 and Ⅲ 36 1)of common buckwheat were obtained from 10 000 rad seed radiation by 60 Co γ ray.The results indicates that the peroxidase activity of Ⅱ 45 1 and Ⅲ 36 1 is three times that of unradiated buckwheat.The isoenzymes zymogram of peroxidase shows that both Ⅱ 45 1 and Ⅲ 36 1 have an additional band (Rf=0.43)while a band (Rf=0.84)is missing in comparison with the unradiated buckwheat.