EMS和^60Co对海甘蓝种子萌发及其M1代农艺性状的影响

用ＥＭＳ及＾６０Ｃｏ处理海甘蓝种子，对其萌发种子细胞内呼吸代谢有明显的影响。低浓度的ＥＭＳ或低剂量的＾６０Ｃｏ刺激呼吸，可提高抗坏血酸氧化酶和过氧化物酶的活性，促进种子的萌发和幼苗的生长。较高剂量的ＥＭＳ和＾６０Ｃｏ抑制呼吸，与之有关的抗坏血酸氧化酶和过氧化物酶的活性，种子发芽势和发芽率、幼苗生长高度和根系活力等随之下降，用不同剂量的ＥＭＳ和＾６０Ｃｏ处理海甘蓝种子，对Ｍ１代的产量和抗病性等有一定

EFFECTS OF EMS & 60 Co ON SEED GERMINATION OF CRAMBE ABYSSINICA AND ITS AGRONOMIC CHARACTER OF M 1 GENERATION

Physiological process of germinating Crambe seeds was significantly influenced by the treatment of different concentration and dose of EMS & 60 Co. Low-level of them could stimulate the respiration and raise the activities of ascorbic acid oxidase and peroxidase which associated with higher rate of seed germination and growth of seedling. High-level had inhibiting effects on respiration and the activities of related enzymes, the germinating potential of seed and the rate of germination and the vigor of root system decreased. The yield per plant and the resistance to disease of M 1 generation of Crmbe abyssinica were also influenced by the treatment of different concentration and dose of EMS & 60 Co.