Effect of Different Temperature Illuminance on Tartary Buckwheat

Tartary buckwheat has a short growing period, is drought-tolerant and cold-tolerant, and has strong adaptability. The total flavonoid content of tartary buckwheat grain is 24.5g/kg, and the total flavonoid content of bitter buckwheat malt extract after germination is 43g/kg, which is 1.76 times that of grain. Buckwheat seedlings (sprouts) are rich in nutrients and contain a variety of amino acids, vitamins, minerals, dietary fiber, organic acids, and flavonoids. Flavonoids in them eliminate free radicals, anti-cancer, anti-salt, anti-viral, and anti-viral effects. Blood sugar and prevention of atherosclerosis and other physiological activities. It is precisely because of the good dietary value of bitter buckwheat, many workers are now beginning to study it to improve its economic benefits.

The growth of Tartary buckwheat is affected by many factors, such as temperature, humidity, illuminance, etc. We used the light incubator to do experiments: in which the seeds were used at different temperatures of 5, 10, 15, 20, 25 and 30Â°C. Treatment, and then into the light box (light intensity 800 lx) germination, through the experiment we found: At different temperatures, the germination rate of Tartary Buckwheat seeds have a significant difference. With the increase of temperature, the germination rate of seeds increased to 30 At the temperature of Â°C, the germination rate decreased. When the germination temperature was 5Â°C, the germination rate was only 12%, and the germ growth was slow. At the end of the germination, the shoot length was only 2 to 3 mm, indicating that the temperature was too low and was not favorable to the seeds of tartary buckwheat. Germination. At the same time, we also found that the optimal temperature for the germination of Tartary Buckwheat seeds is 25Â°C. Another experiment is: temperature (A) levels of 20Â°C (A1), 25Â°C (A2) and 30Â°C (A3), and light ( B) Levels 1 000 lx (B1), 3 000 lx (B2) and 5 000 lx (B3) for a total of 9 treatments. Seeds sowed after the above method are sown in filter trays (19 x 28 cm) In each treatment, seeds of 75 g are sown and placed in an intelligent light incubator. Of course, the light incubator can also be replaced by an artificial climate box because light Incubator capable of controlling temperature and light intensity, it is possible to provide a climate cabinet. Results: In the production and cultivation of Tartary Buckwheat, in order to improve the yield and quality of the sprout, the light intensity should be controlled at 1 000~3 000 lx and the light intensity should not be too strong. The level of the ambient temperature should be determined according to the different growth stages of the seedlings, ie At the early stage of seedling growth, the ambient temperature should be controlled at about 25Â°C to promote the growth of seedlings and increase the yield of the sprouts. At the later stage of seedling growth, the ambient temperature should be controlled at about 30Â°C to promote the accumulation of Vc and flavonoids in the seedling leaves. Improve the quality of sprouts.

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