Anthocyanins are a type of flavonoid, a class of compounds with antioxidant effects. Found naturally in a number of foods, anthocyanins are the pigments that give red, purple, and blue plants their rich coloring. In addition to acting as antioxidants and fighting free radicals, anthocyanins may offer anti-inflammatory, anti-viral, and anti-cancer benefits.
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First, nursery
1. Seed propagation As the seed germination rate of Toona sinensis is low, seeds should be soaked in warm water of 30-35°C for 24 hours before sowing, picked up and placed at 25°C to germinate, and when the radicles are exposed with large grain size, sowing (ground temperature at the time of sowing). Minimum 5 °C or so). After emergence, 2-3 true leaves time seedlings, 4-5 true leaves when the Dingmiao, row spacing 2515 cm.
2. There are three methods for propagation of the ramets: one is to grow roots. From March to April, roots with a thickness of 0.5 cm or more were collected from 3-4-year-old saplings and immediately cut into 15-20 cm long roots. Among them, the small head is cut into bevels, and is inserted along with the scissors, and the spacing between the rows is 50-6030-40 cm, and the depth of the insertion is appropriate to the level of the top and the ground. In order to grow the seedlings neatly, the roots should be graded before plugging in; watering should be properly controlled after plugging in, but the soil must be loosened and weeded. When the seedling height is 10-15 cm, only one strong bud is retained and the remaining buds are removed. The second is to keep the roots. After the sassafras is lifted, the nursery is well-grounded and immediately watered to encourage the roots that remain in the soil to grow into robust seedlings. The third is to cut off the root nursery. At the beginning of the winter and early spring, dig 60 cm deep circular grooves around the trees, cut off part of the lateral roots, and fill the grooves. The adventitious roots of the roots of Toona sinensis are easy to emerge, and new seedlings are sprouted from the roots of the roots and transplanted in the following year.
Second, planting must first be planted. Generally before the frost (from late October to early November) raised seedlings from open field. When raising the seedlings, it is necessary to maintain the integrity of the root system. The main root length is 20-25 cm, and the secondary root is 10-15 cm. Weak, sick, severely injured, and over-emergence shoots are removed, and strong seedlings are selected to be planted. The criteria for strong seedlings are: seedling height 1.2-1.5 meters, stem diameter 1.5 centimeters at 10 centimeters above the ground, high degree of lignification, full organization, full head buds. Dig a false planting ditch at the leeward sunny place, and lay the seedlings obliquely for prosthesis. General prosthesis 15-20 days, when cold currents need to cover cold-proof material.
Colonization is generally shed in the middle and late November, and the shed can be planted within 5-7 days. During the 10 days before planting, the plants were deep-stumpaged, and the amount of organic manure per acre was over 5,000 kg, urea was 20 kg, diammonium phosphate was 15-20 kg, potassium chloride was 15 kg, and 25% carbendazim powder was 1-2 kg. It should be made into a north-south direction, a width of 1-1.2 meters, and cultivated according to the spacing of 4-520 cm. The filling depth is based on the original seedlings buried soil line, and it is watered after planting. Generally, it can plant 60,000-80,000 plants per acre.
Third, the management after planting After planting, the greenhouse temperature is controlled at 20-25 °C during the day, reaching 25 °C in a timely manner; night control at 10-15 °C, generally not lower than 10 °C. At high temperatures, the buds grow fast, they are not easy to color and they have poor taste; at low temperatures, the buds grow slowly and yields are low. As the root system is inevitably damaged, the water absorption capacity is reduced, and water is poured after planting. Afterwards, depending on soil type and dryness and humidity, water is poured at any time to keep the soil moist. The air humidity should be kept above 85%. Sprayers can be sprayed into the stems and air at noon on sunny days to improve the humidity in the greenhouse. Should maintain 20,000 - 30,000 lux of weak light. If the sunlight is strong, the grass curtains can be shaded appropriately. Budding and watering are generally not performed until the buds are harvested. Axillary buds are topdressed once every 15 days, and 15-20 kg of urea per mu. After top dressing, watering can also be performed outside the root dressing.
Fourth, 45-50 days after picking the general buckled sheds in due course. When the scented shoots grow to 20 cm in color, they can be picked and listed. If the time is too short, the output is low, if it is too long, the quality is poor. After the first bud is picked, the lateral buds are picked up, bundled into 100-200 grams of small bundles, packed in small plastic bags, and sealed to prevent loss of moisture. If you are not in a hurry to market, you can place the monolayer in a cool place with the temperature maintained at 0-10°C and store for 10-20 days. Avoid centralized stacking.
Recent research suggests that anthocyanins may also help fend off major health problems, including heart disease and cancer.
Anthocyanins may enhance heart health, anthocyanins appear to improve cholesterol levels and blood sugar metabolism, as well as fight oxidative stress.
2) Obesity
Preliminary research suggests that anthocyanins may protect against obesity.
3) Cancer
Anthocyanins may aid in the prevention of breast cancer, according to a laboratory study published in Phytotherapy Research in 2010.
Warm winter greenhouse
In the winter warming greenhouse, the scented pods are transplanted into sheds of high-density resorts for 1-2 year-old seedlings grown in the open field, and then moved to open fields in the winter. After growing, they can produce more than 10,000 kilograms of citrons per mu. The economic benefits are considerable. Its main cultivation techniques are as follows: