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用~(60)Coγ射线、快中子辐照白沙1016等5个花生品种,获得175份稳定的突变体。对它们及其原品种作发芽势、发芽率及出苗率的耐盐性测定。结果表明:辐射可以诱发花生耐盐性突变,而且均为双向突变,但耐盐性比原品种变弱的突变体较多。选用耐盐性较强的品种进行辐照,可以诱发出更耐盐的材料。耐盐性较强的突变体,其种子脯氨酸含量较高,叶面积较小;经盐处理后,子叶过氧化物酶活性下降较多。
Five peanut varieties including Baisha 1016 were irradiated with ~ (60) Coγ-ray and fast neutron, and 175 stable mutants were obtained. The salt tolerance of germination potential, germination rate and emergence rate of them and their original varieties were determined. The results showed that radiation induced peanut salt tolerance mutation, and both of them were two - way mutant, but more salt - tolerant mutants were weaker than the original variety. Selection of salt-tolerant species for irradiation, can induce more salt-tolerant materials. The mutant with higher salt tolerance had higher proline content and smaller leaf area. After salt treatment, the activity of cotyledon peroxidase decreased more.