Harvest and Storage of Lycium barbarum L.
1. The harvest of Chinese wolfberry. Medicinal Lycium barbarum fruit ripens from June to November every year and should be picked at the right time. When the fruit changes from turquoise to red or orange, and the pedicel and pulp become slightly soft, it can be picked. Picking too early, the fruit is not full, the color is not fresh after drying; picking too late, the sugar is too sufficient and easy to fall off, drying or drying into a crimson black (commonly known as oilseeds) and reduce the commodity value. Fruit picking should be carried out after 10:00 on a sunny day. Do not pick the fruits caused by rain or dew. Handle them gently when picking and pick them together with the fruit stalk. Otherwise, the outflow of fruit juice will affect its internal quality. In case of long-term overcast and rainy weather, the harvested fruit should be spread out thinly on the sun pad immediately, with a thickness of not more than 5 cm. After it is naturally dried, it will be processed into Chinese wolfberry for dry preservation.
2. Processing essentials of Chinese wolfberry. ① drying method: spread the fresh fruit thinly on a clean drying mat so that the Chinese wolfberry fruits do not overlap each other. The first two days with strong sun exposure, moved to the shade at noon to dry for 1-2 hours, to avoid exposure to the sun all day and become stiff. After the third day, it can be exposed to the sun all day until it is dry. ② drying method: the drying should be carried out in three stages: first, baking at 40-45 ℃ for 24-36 hours to make the pericarp wrinkle slightly; after cooling, baking at 45-50 ℃ for 36-48 hours, until all the fruits shrink and wrinkle; finally, continue drying at 50-55 ℃ for 24 hours. The dried fruit is stored in a dry and ventilated place to remove sundries, oilseeds, stiff seeds, ash shavings and other sundries, moistureproof and moth-proof.
Chinese wolfberry fruit in the process of drying or drying, can not be turned casually with hands or other objects, so as not to cause fruit blistering and blackening and reduce the value of the product. The quality of the product is dry, full pulp, thick, sweet taste, bright red color, no avocado, no impurities.
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Spring cutting method of Lycium barbarum
First, thinning branches. First of all, the dead branches, disease and insect branches, injured branches, acupuncture branches and cross-cutting branches should be cut off, and then the fruit branches that are too dense should be cut. When thinning fruit branches, first remove shade branches, lower back branches, thin and weak branches; then remove upper branches and middle branches; if it is still dense, then sparse both sides of the branches, and after pruning, the distance between fruit branches is 5-6 cm, and they are all white branches with full growth and strong fruiting power. Second, deal with the growing branches. An overgrown branch growing below the backbone branch, reserved as an elongated branch of the backbone branch and properly truncated to stabilize the branch potential and extension direction; near the elongated branch.
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Techniques of sowing and raising seedlings of Lycium barbarum
Seed sowing and breeding, that is, sexual reproduction. It uses seeds to reproduce seedlings. The advantage of this method is that it can produce a large number of seedlings in a short time, meet the urgent need for seedlings in production, and is low in cost and easy to master. The disadvantage is that the variability of the production seedlings is great, the excellent characters of the mother tree can not be maintained, and the fruit is late and the quality is poor. However, considering the need of a large number of seedlings in production at present, although this method has some shortcomings, it still has certain application value. Seed preparation: there are many varieties of Lycium barbarum, but Ningqi l, Ningqi 2 and hemp leaf are better.
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