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本文用６０Ｃｏγ射线慢照射大豆苗期植株，研究其效果。结果表明，慢照射对Ｍ１代（当代）大豆植株的生长发育和籽粒产量有明显的抑制作用，不同剂量，以及同一剂量的不同剂量率间，对株高，每株英数，叶片的长宽比等性状的影响不同。而且出现种子急性照射从未有过的变化，如出现１、２、４小叶的复叶，２个以上的多生长点。Ｍ２代幼苗出现１片、３片真叶或子叶，且子叶连体或皱折。小剂量率的辐射效果大于大剂量率。苗期惺照射可以引起大豆后代籽粒蛋白质含量的突变，如９１－４４０４的蛋白质含量达５０．０２％，较原材料增加３％。
In this paper, 60Co γ-ray irradiation of soybean seedlings slowly to study the effect. The results showed that slow irradiation significantly inhibited the growth and grain yield of M1 generation (contemporary) soybean plants. Different doses and the same dose of different dose rates, the plant height, number of leaves per plant, length and width of leaves Different than other traits. And there have been unprecedented changes in the seed acute irradiation, such as the emergence of 1, 2, 4 lobular compound leaves, more than 2 more growth points. M2 seedlings appear one, three true leaves or cotyledons, and cotyledons or folds. Low dose rate radiation effect is greater than the high dose rate. Seedling exposure can cause sudden changes in the grain protein content of soybean offspring, such as 91-4404 protein content of 50.02%, an increase of 3% compared with the raw materials.