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1.化学药剂处理。利用赤霉素26～50ppm处理小麦种子,能增加呼吸酶的活性,促进呼吸作用的旺盛进行,使细胞分裂加快,有利于胚的生长而萌发;利用硫酸处理棉籽,既可脱去短绒,又能使种皮腐蚀,增加其通透性,促使种子萌发;利用双氧水处理禾谷类休眠种子,可以有效地打破休眠。如小麦可用29%以上的原液浸渍5分钟;大麦用1.5%稀释液浸24小时,水稻用3%稀释液浸24小时,或用0.1当量的硝酸浸16～24小时.
Chemical treatment The treatment of wheat seeds with 26-50 ppm of gibberellin can increase the activity of respiratory enzymes and promote the vigorous respiration so as to accelerate the cell division and promote the germination of the embryos. Sulfuric acid treatment of cottonseeds can remove the short fibers, But also makes the seed coat corrosion, increase its permeability, promote seed germination; use of hydrogen peroxide treatment of dormant seeds of cereals can effectively break dormancy. Such as wheat can be used for more than 29% of the original liquid immersion for 5 minutes; barley 1.5% diluted solution for 24 hours, rice with 3% diluted solution for 24 hours, or with 0.1 equivalent of nitric acid for 16 to 24 hours.