The reasons for the low germination rate of the latest rice seeds

Rice is the most important food crop in China, and the most common way of planting is sowing and raising seedlings, but many growers will have the problem of low seed germination rate when sowing and raising seedlings. So what is the reason for the low germination rate of rice seeds? Let's take a look at the detailed introduction.

1. High temperature and humidity climate

In general, the higher the maturity of rice, the greater its germination rate. Under normal circumstances, it takes 25 days for seeds to mature. The suitable temperature for seed germination of rice is 30-35 degrees, and the lowest temperature is 10-15 degrees. However, due to the different flowering parts of the seeds on the same plant, the flowering matures before and after flowering, the fully mature planting dormancy is shallow and easy to develop, while the planting that is not fully mature is dormant deeply and not easy to sprout. The high temperature and rainy climate is suitable for seed germination, while the mature period of late rice will sprout in the field in case of overcast and rainy weather in the upright high temperature season.

2. Improper harvest time

The dormancy period of rice is not obvious, if the harvest is too early, the seed is not fully mature, in the not completely dry environment, the seed still has respiration, the time seed nutrition consumption is more serious, so the germination rate is low. If the harvest is too late, the seed will germinate directly in the environment of high temperature and humidity, which will also affect the germination rate. In addition, too much moisture in the seed will accelerate its aging and lead to the germination rate. Therefore, we must grasp the appropriate time at the time of harvest, not too early or too late.

3. Improper drying

After the seeds are harvested, it is necessary to dry and clean up the impurities before storage, but due to the large number of seed units and limited sites, there is a lack of drying equipment. If it is not turned in time when drying, the grain pile will be steamed, which can easily burn the germ of the seed, cause the seed to lose its activity, and the germination rate is close to zero.

4. Mechanical damage

The seed coat of some rice varieties will break after being full, and these varieties are also prone to shelling in the process of harvest and processing. After losing the protection of seed coat, these seeds are extremely difficult to develop, even after germination, it is extremely difficult to form seedlings, and they are easy to rot in the field.

The above reasons for the low germination rate of rice seeds are introduced. I hope I can help you. If you want to know more about it, please follow us.