Rapid Determination of Seed Germination Rate of Maize

Rapid Determination of Seed Germination Rate of Maize

Germination rate is one of the most concerned issues for farmers when they purchase corn seeds. Now we introduce a simple and quick method to test the germination rate:

Take a small amount of seeds randomly from the seed bag, pick out the damaged grains, and randomly take 200 seeds, divided into 2 pieces, each 100 pieces, and soak in 30°C water for 3-4 hours, then remove and remove the stalks with tweezers ( The crown of the seed), while torn off the seed coat of the embryo. Put two new towels in boiling water and boil them for half an hour. After cooling, remove excess water and flatten it on a clean tabletop. Put the two treated seeds evenly on a half towel, towel. Leave 4 cm on both sides. Keep a distance equal to the seed size between the seeds and the grains. When the seeds are aligned and the seeds are aligned, fold the other half of the towel over and cover the aligned seeds. At one end of the towel Put a chopstick as a shaft, and then roll the towel into a loose stick to facilitate ventilation. The ends of the towel roll are tied with ropes. The thermos bottle is filled with half a bottle of water at 30°C, and the towel is hung in the upper half of the thermos without water. The thermos bottle is covered with insulation. Replace the 30°C water every 6 hours. When the length of the radicle is about equal to the length of the seed and the length of the germ is about half of the length of the seed, germination occurs. After 48 hours, germination percentage can be calculated by taking seeds that have normal germination. At the same time also need to use the crude fat analyzer, which has several different models SZF-06A crude fat analyzer and SZF-06B crude fat analyzer to determine the content of crude fat in the seed to determine the quality of the seed.

The commercially-applied seeds are best tested using soil germination tests to avoid the inhibitory effect of the coating material on germination. If the method of sprouting with a towel roll is still used, the coated seeds must be washed thoroughly with running water to minimize the inhibitory effect of the coating material on germination, and then the germination test should be performed. Since some pesticide components are still inevitably left on the seeds, sprouting will be slower than uncoated seeds. Therefore, the calculation of the germination rate should be delayed from the uncoated seeds.