How to remedy apple pollen when frozen, apple pollen freezing will be bad

1. Alleviate frost hazards.

For frozen orchards, stop the implementation of pre-flowering double pruning, bud thinning and flower thinning measures, after the young fruit sitting, according to the specific fruit setting situation of each orchard, thin the fruit and fix the fruit, fine fruit thinning, leaving the fruit shape is correct, the development of normal fruit, weak and small, deformed, damaged fruit. In orchards with heavy frost damage, it is necessary to make full use of high-quality edge flower fruits and axillary flower buds to ensure good economic yield and benefits.

2. Promote fruit set.

After frost, urea, boron and other nutrient fertilizers should be sprayed in time to quickly replenish nutrients, alleviate the adverse effects caused by low temperature frost damage, improve fruit setting rate, ensure full fruit setting and promote the development of young fruits.

3. Strengthen fertilizer and water management.

After the occurrence of frost, orchards with irrigation conditions should be watered immediately to alleviate low temperature damage and promote the normal development of roots and young fruits. At the same time, compound fertilizer, silicon, calcium, magnesium and potassium fertilizer, soil conditioning fertilizer, humic acid fertilizer, etc. are applied in time to promote fruit development, increase single fruit weight, and save yield. Strengthen soil management to promote root and fruit growth and development to mitigate disaster losses.

4. Strengthen the prevention and control of pests and diseases.

After suffering from low temperature and frost, the tree is prone to weakening and pests and diseases. Therefore, it is necessary to pay attention to strengthening the integrated prevention and control of pests and diseases to minimize the yield and economic losses caused by pests and diseases.

5. Continue to pay attention to weather changes and actively prevent frost disasters during the flowering period.

According to the climatic characteristics of this year, the weather is highly changeable, the temperature fluctuates, and the possibility of frost during the flowering period is still present. Therefore, it is necessary to fully understand the objectivity of the occurrence of low temperature weather, the possibility and disastrous occurrence of frost, and actively do a good job in the ideological, material and technical preparations for the prevention of frost hazards during the apple flowering period, so as to ensure the safety, stability, health and sustainable development of the apple industry.

1. Suspend pruning: Because the symptoms of frost damage during the dormant period of fruit trees are not obvious, in order to confirm the degree of frost damage, pruning should be postponed in areas with strong low temperature and long duration, and pruning should be carried out after the fruit trees sprout and spread their leaves.

2. Reasonable pruning: For fruit trees with light damage, cut off the branches that are killed by frost, and cut off the slow-release branches and various extended branches to the parts that can extract the strong branches; Trees that are severely frosted are cut to the strong parts of perennial branches, and reshaped after germination and branch pulling.

3. Strengthen fertilizer and water: After the fruit tree is frozen, fertilizer and water management should be strengthened, the tree nutrition should be supplemented, and the fruit load should be reduced at the same time, so as to restore the tree as soon as possible, focusing on strengthening the topdressing of fast-acting fertilizer and the spraying of foliar fertilizer.

4. Clean the garden in time: after the tree germinates, cut off the damaged branches and buds in time, and the cutting edge should exceed the frozen part when pruning; Scrape off the cortex that cannot recover the growth of frost damage, and remove the cut branches and cortex in time to burn or bury them outside the garden to prevent the spread of diseases; The parts with large cuts and scraping parts should be protected in time.

5. Prevention and control of pests and diseases: after the tree body is frozen, the tree is weak, the ability to resist pests and diseases is reduced, and it is easy to cause pests and diseases, which is the focus of the work of the frozen orchard, and it is necessary to spray pesticides in time for prevention and control.

6. Appropriate intercropping: vegetables, peanuts and other crops can be interplanted between the rows of orchards in the early fruit stage when serious damage is serious to make up for the economic losses caused by the reduction of orchard yield.

7. Avoid late frost: Since orchards have suffered from late frost more frequently in recent years, it is recommended that fruit farmers must pay more attention to meteorological information and take effective protective measures to avoid suffering harm again.

My house is frozen black, can I cut off the frozen black?

Summary. Hello is possible, frozen storage method.

At the same time of artificial pollination, the excess flowers with full and full development are collected to prepare anthers, dried in the shade for 1-2 days at natural temperature, powdered, and then wrapped in ordinary white paper within 24 hours. To prevent heating, do not exceed 10g per pack, and put a kraft paper envelope into every 5 10 packs; After sealing the outside with a non-toxic plastic bag (preferably two layers), immediately put it in the freezer compartment of the refrigerator for long-term storage. Pay attention to the following points when storing:

Storing pollen must be sealed tightly so that refrigerator odors do not enter the pollen.

Frozen pollen is slightly drier than directly collected pollen; In order to avoid agglomeration after freezing, it will affect the germination rate.

Keep the refrigerator temperature below -4 and don't go up or down. In the event of a power outage, try to keep the required temperature low.

When using, if the amount of frozen pollen is large and cannot be used up at one time, it can be taken out in parts. Because after freezing, the pollen germination is strong and the abortion rate is high, and the pollen taken out should be used up within 24 hours.

Is apple pollen frozen + bad?

Hello is possible, the frozen storage method in artificial pollination at the same time, the flowers are full of base, the development of the excess flowers are collected to make anthers, dried in the shade at natural temperature for 1-2 days, powdered, and then wrapped in white paper within 24 hours. To prevent heating, do not exceed 10g per pack, and put a kraft paper envelope into every 5 10 packs; After sealing the outside with a non-toxic plastic bag (preferably two layers), immediately put it in the freezer compartment of the refrigerator for long-term storage. Pay attention to the following points when storing:

Storing pollen must be sealed tightly so that refrigerator odors do not enter the pollen. Frozen pollen is slightly drier than directly collected pollen; In order to avoid agglomeration after freezing, it will affect the germination rate. Keep the refrigerator temperature below -4 and do not go up or down.

In the event of a power outage, try to keep the required temperature low. When using, if the amount of frozen pollen is large and cannot be used up at one time, it can be taken out in parts. Because after freezing, the pollen germination is strong and the abortion rate is high, and the pollen taken out should be used up within 24 hours.

Does apple pollen freeze necrosis?

No, as long as you use scientific and reasonable methods.

Is it better to freeze or refrigerate?

Refrigerate better.

How do you use it when you take it out?

Dip the pollen with a brush and apply the hail to the stamens. It should be noted that pollination should be directed to one side, the central inflorescence of the flower is low, and one of the short branches at the top of the middle and top of the source state should not be directed too much.

When the apple blooms, there are insects to eat the flowers, can you spray it?

It is possible to apply medicine, but it should be used scientifically.