Flower and Fruit Protection of Kernel Apricot
1. Irrigation before flowering in apricot about 10 days before flowering can reduce the ground temperature, increase air humidity, delay flowering for 4 days, and help to avoid the harm of late frost.
two。 Special attention should be paid to frost forecast at flowering stage. When frost is predicted, the method of smoking should be taken in time to prevent frost, that is, the sundries such as straw and fallen leaves should be lit before Frosts Descent, so that the smoke will cover the whole apricot orchard and the temperature can be increased by about 2 ℃. Aerosol can also be used, the formula is 20% ammonium nitrate, 15% waste diesel oil, 15% coal noodles and 50% sawdust or grain chaff, straw powder, dry horse dung, etc., stir evenly into Kraft paper bags to compact and seal. Each bag is 1.5kg, can release smoke for 10-15 minutes, and control area is 2000-2700 square meters.
3. Artificial pollination and artificial pollination of several apricot varieties at flowering stage, or release of horned frontal wall wasp, @ # @ 255cm, etc., can significantly increase the fruit setting rate.
4. Spraying water or boron during flowering period is dry in spring, and the adhesion of stigma on apricot flower is poor, which is disadvantageous to pollination. Spraying water or boron (0.1%-0.3%) is beneficial to pollen adhesion and germination, and can increase the fruit setting rate.
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Apricot varieties: a swarm of bees
Applicant: Hebei Provincial Forest Variety examination and approval Committee. Approval: approved by the National crop Variety approval Committee in 1993. Variety registration number: GS140ll-1992. Variety source: local varieties in Zhangjiakou area of Hebei Province. Characteristics: the crown is round head-shaped, the tree growth potential is medium, the trunk is brown-purple, and the skin is rough. The leaves are dark green, heart-shaped, fine branches, short internodes and easy to form string-shaped branches. The fruit is large and dense, and the fruit eggs
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Fresh Apricot-- "Cele Yellow"
Cele yellow, the fruit is nearly round, the fruit is large and beautiful in appearance. Pericarp golden yellow, pericarp with short villi, suture in deep, two halves, slightly asymmetrical. The flesh is light yellow, the flesh is medium tough, the juice is more, the taste is sweet, the kernel is sweet and full, the average single fruit weight is 43.30 grams, the meat thickness is 1.14 centimeters, the soluble solids content is 21.6 grams, the fresh core weight is 3.4 grams, blossoms in late April, and matures in the middle of June. It has strong continuous fruiting ability, barren resistance and drought tolerance. It is not only the top grade of fresh apricot, but also an ideal one for the production of high-grade dried apricot.
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