Apricot Plum of Longting--A Protected Variety Authorized by State Forestry Administration
Longting apricot plum is a new fruit tree variety discovered by forestry scientists in Longting Town, Xintai City, Shandong Province. It belongs to the accidental hybrid bud variety of apricot and plum of Rosaceae. The State Forestry Administration has authorized protection, the authorization number is 20030002.
The bark of Longting apricot plum is grayish white, much branched, the sun face of the new shoot is red, the leaves are oval, the flowers are white, the proportion of complete flowers is high, the florescence is about 7 days, and the resistance to low temperature, late frost and natural fruit setting rate is high. The fruit is nearly spherical, the top of the fruit is smooth, the suture is shallow and symmetrical on both sides. The average weight of single fruit is 47.5 grams. After reasonable fruit thinning, the average weight of single fruit is 71.3 grams, and the maximum is 110 grams. The fruit surface is powderless, glabrous, smooth and glossy, the background is golden, the sunny side is bright red, and the colored surface is 1 gray 3-1 prime 2. The flesh is yellow, translucent and tough, with a ripening period of 3-5 days, long-distance transportation and a shelf life of 7-10 days. Fruit soluble solids 11.5%, total sugar 7.95%, strong flavor, fresh sour, sweet and delicious, unique flavor, high quality, suitable for processing.
This variety generally uses apricot as rootstock. The flower formation of this variety is easy, and the main fruit is short fruit branch and bouquet fruit branch. The natural fruit rate is very high, and has a very strong high yield, no big or small year phenomenon, proper management, 2-3 years results, 5-6 years into the high-yield period.
Longting apricot plum can withstand the low temperature of-30 ℃ during dormancy, the new root begins to grow when the soil temperature reaches 5 ℃, and the suitable temperature at flowering stage is 6-18 ℃. It is a light-loving tree species. Sufficient light not only makes it have high yield and good quality, but also has a large color surface and beautiful appearance. In the local area, it germinates in late March, blossoms in the first and middle of April, changes from green to yellow at the end of June, matures around July 8, the fruit development period is 80 days, and the leaves fall in early November.
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