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正常的种子在适宜的温度、水分、氧气条件下都能萌发生长,而硬实种子在同样条件下则萌发很慢或不萌发。通过研究,豆科牧草的硬实种子种皮具有一层排列紧密的长柱状大石细胞组成的栅栏层,由于这一特殊结构,造成了种子的不透水性,使萌发很慢或不萌发,给生产上带来了极大的困难。因此,在播前对硬实种子含量高的种子进行处理,寻求降低硬实率的方法就显得尤为重要。于是,我们对紫花苜蓿和红三叶进行了研究。一、材料和方法1.试验材料收获一年后的紫花苜蓿、红三叶种子。2.试验处理设对照组和处理组,对照组的种子不作任何处理,处理组的种子分别进行硫酸处理、液氮处理和高温处理。3.处理方法硫酸处理是将种子分别
Normal seeds germinate and grow under suitable temperature, moisture and oxygen conditions, while hard seeds germinate slowly or not under the same conditions. Through the research, the hard seed seed coat of leguminous pasture has a layer of closely packed columnar columnar stone cells composed of the barrier layer, due to this special structure, resulting in impermeable seeds, germination is very slow or non-germination, to the production Brought great difficulties. Therefore, it is particularly important to find seeds with high seed content before sowing, and to find ways to reduce hardwood yield. So, we studied alfalfa and red clover. First, materials and methods 1. Experimental materials Alfalfa harvest after a year, red clover seeds. 2. Experimental treatment The control group and the treatment group, the control group of seeds without any treatment, the treatment group of seeds were sulfuric acid treatment, liquid nitrogen treatment and high temperature treatment. 3. Treatment Sulfuric acid treatment will be the seeds separately