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Seed germination techniques of hybrid mid-season seeds
In recent years, China's agricultural production and seed production have suffered frequent disasters, and seed quality disputes arising from the germination rate of hybrid mid-season seeds have emerged in an endless stream, which has brought huge economic losses to seed companies and seed farmers each year. In order to fully germinate the seeds of hybrid rice as much as possible and to protect the legitimate rights and interests of both the farming households and the seed companies as much as possible, the author combines many years of work experience to propose the following simple but easy-to-grasp hybrid seeds for germination. method. 1 Before seed soaking in the sunseed, the seed is spread on a sieve or a mat, and directly exposed to sunlight for 2 to 4 hours to break the seed dormancy, increase its vitality, and promote seed water absorption. 2 Clean water selection Seed washing with clean water or 10% to 15% of salt water to completely remove pods, semi-full granules or diseased granules. 3 Seed soaking in running water or fresh water, strengthening panning, short dipping and more dew. Put seeds selected by fresh water into transparent, well-ventilated woven bags during the day. The amount of seeds contained in each bag should not exceed 10 kg. It is best to put it in flowing river water (the condition does not have to be at least clean and unpolluted water) for 6-8 hours per day. In the middle of soaking, the seeds should be lifted, cleaned once, spread, and the seeds fully contact with the air, and then dip. In the afternoon, put the seeds on the home and fully spread them so that the seeds can fully absorb oxygen, and the thickness of the spreads should be 6-10 cm. There are many farmers who just cause a lack of oxygen in the seeds because they are not fully spread. So repeated 2 ~ 3d, you can ensure that the seed normally breaks the chest germination. In the process of spreading, it is necessary to observe the change of seed moisture at any time, and it is strictly forbidden that the hull will lose white water. 4 If sowing seeds are soaked and their seeds are soaked, they can be sown in the valley after sowing. In principle, no warming and germination of farm produce will be promoted. If germination technology is used, the temperature and seed permeability must be controlled to prevent high temperature burning and seed return. Sugar sticky and anoxic poisoning. 5 Soaking time The seed soaking time of mid-season hybrid rice should be arranged in fine weather with stable temperature above 15°C to avoid the bad weather caused by low temperature and rain.