Temperature requirements for the growth of Chinese Yam

Chinese yam is not only a kind of medicine, but also a kind of vegetable, which is very popular in our country. When planting Chinese yam, there are many areas that need our attention and management. Among them, temperature is the key, which will directly affect the growth ability of yam and is closely related to the yield and quality of yam. So what is the temperature requirement of yam when planting yam? Let's take a look at it with the editor.

1. The effect of temperature on Chinese yam

As I just said, temperature has a great influence on the growth of Chinese yam, including air temperature, ground temperature and so on. After the yam began to sprout, the relationship between ground temperature and yam is very great. Every spring, when the local temperature gradually rises above 10 degrees, the stem species of Chinese yam begin to sprout, but the speed is not fast. When the temperature reached about 18 degrees, the germination rate of Chinese yam began to accelerate obviously. The suitable speed of Chinese yam germination is about 24 degrees. Under this temperature, the germination time of Chinese yam is generally about 9 days. With the rise of ground temperature, the speed of germination will continue to accelerate. However, if the temperature rises too fast, it will affect the growth ability of the seedlings.

2. Temperature requirements during tuber expansion period

After entering the expansion period, the suitable temperature of yam tuber is generally about 25 degrees. If the temperature is lower than 15 degrees, it will significantly reduce the growth rate of yam, and if the temperature is below 10 degrees, it will stop growing. The temperature should not be too high, if it is higher than 30 degrees, then the respiration of yam tubers will be enhanced, consuming too much nutrients and reducing the accumulation of organic matter. Chinese yam stem vine growth temperature requirements are relatively high, generally controlled at more than 20 degrees, the appropriate temperature is about 26 degrees. Beyond the range of 10-35 degrees, the light will slow down the growth rate, and the heavy will cause the growth to stop.

3. Temperature requirement during dormant period

Generally speaking, after Frosts Descent every year, the yam begins to enter the dormant period, at which time the stems of the aboveground part of the yam will gradually die. The tuber begins to dormant, but the physiological activity of the tuber is still going on. Therefore, when the tuber is dormant, the temperature should be controlled at about 1-2 degrees. This temperature can inhibit the physiological activities such as respiration and transpiration of tubers. Avoid consuming too much nutrients during storage. If the temperature is below minus 3 degrees, then the yam will suffer frost damage, but the temperature should not be higher than 10 degrees, which can easily lead to tuber rot.

The above is a brief introduction to the temperature requirements for the growth of yam. The temperature control of yam growth is very important, which directly affects the yield and quality, and is also related to the termination benefit, so we must pay more attention to it. That's all for today's introduction. This article is for reference only. I hope it can help you all.