What is rescue food and what is its nutritional value? How do you raise it?

Food for rescue. The name comes from a story: it is said that in the past, there were soldiers and horses trapped in a mountain, cooking and running out of food and then eating this fruit to survive the disaster, so this fruit is called rescue food.

The scientific name of rescue food is Hippophae rhamnoides, Rosaceae, evergreen shrubs, and the fruit can also be used for wine or grinding. It is a kind of medicinal, edible and ornamental multi-purpose flower and fruit plant, which is used as medicine in fruit, root and leaf, with flat sex, sweet and sour taste, heat-clearing and detoxification of leaves, external application to treat sore and swelling poison, it is an excellent flower-watching plant in spring and fruit-watching plant in winter.

nutritive value

Hippophae rhamnoides fruit is rich in organic acids, proteins, amino acids, vitamins and a variety of mineral elements, which can be eaten fresh or processed into various beverages. Its fruit ripens in autumn, like a torch, and can be planted as a street tree or courtyard. Its root bark, stem bark and fruit are rich in tannins, which can be used to extract tanning materials. Hippophae rhamnoides root can be used as medicine, its nature is bitter and astringent, with antidiarrheal, dissipating blood stasis, digestion and other effects, fruit, leaf, stem bark also have a similar effect. Hippophae rhamnoides leaves can make tea, with heat-clearing and detoxification, Shengjin and thirst, convergence and antidiarrheal effect.

Cultivation method

Seed propagation

The fruit of Hippophae rhamnoides ripens in October and can be stored on the tree until February of the following year. The seeds should be harvested from October to December. The pulp should be removed in time after harvest, and the seeds should be washed and dried. In the first ten days of March of the following year, the seeds and fine sand were scattered evenly on the seedbed prepared before winter, covering the fine soil with a thickness of not seeing the seeds. Because the seeds were small, the soil should not be too thick, and the seedbed was covered with straw and watered. The seedlings began to emerge in about 10 days, when the straw was removed and the moisture was managed according to the humidity of the seedbed. The emergence rate of sowing is 80.6%. The germination rate of Hippophae rhamnoides seeds could be increased by 0.2 ‰ gibberellin treatment.

Hippophae rhamnoides is suitable for sowing in the next spring, the seed storage time is too long, the seed germination rate decreases obviously, and Hippophae rhamnoides should not be sown in the environment below 20 ℃. It is better to sow Hippophae rhamnoides in autumn. Before sowing, the seeds can be treated with 2/10000 concentration of gibberellin, 20~30cm according to row spacing on the arranged seedling bed, deep 5cm long ditch, sowing ditch, soil covering 3cm.

Check the temperature and humidity every day during the seedling period for 3 months. If the temperature is less than 20 ℃ or higher than 30 ℃, heating or cooling measures should be taken, and the main measures are shading, spraying and so on. If there is no abnormal situation, you can water it once a week. Pay attention to waterproofing and drainage in the rainy season.

Cuttage propagation

Spring cutting is generally from late February to early March, selecting healthy and plump branches of one or two years to cut into cuttings of 15cm and 20cm. Summer cuttings are usually from mid-June to early July. One-year-old semi-lignified cuttings are selected, the twigs with leaves are cut into cuttings of 12 to 15 cm, and the lower end is Malta-shaped, and the cuttings are treated with ABT rooting powder. Deep 10cm grooves are opened on the finished cuttings, the cuttings are placed at a 30-degree oblique angle on the edge of the trenches, the spacing between the spikes is 10cm, the upper part of the bed is exposed 2~5cm, the soil cover is firm, and attention is paid to strengthening water management. The general survival rate can reach more than 90%. It can be transplanted in the following spring.

Striping propagation

Can be carried out from spring to summer, select 1-2-year-old branches close to the ground, burn part of the branches to the cambium or peel off half a circle of branches in advance, let organic nutrients accumulate here to facilitate rooting, then carve the branches to the cambium buried in about 10-15 cm, 1-2 years can form a new plant, and then cut off and separated from the mother plant, planted in the following spring.