Notes on artificial pollination of fruit trees!

Spring is coming, all kinds of fruit trees are blooming, this is a busy time for fruit farmers, in order to improve the fruit set percentage, farmers often have to flowering time, variety characteristic, climate, temperature, natural pollination status, determine whether the auxiliary artificial pollination on fruit trees, the fruit pollen first to introduce the method of peach tree under artificial pollination and precautions:
1 Selection of pollination varieties.
Okubo is the main species of peach pollination, its early flowering, large amount of pollen, strong affinity, artificial pollination best.
2 pollen production.
2-3 days before pollination is the best time for pollen production. The specific method is to choose robust growth light oil peach bud removal in early puberty, timely hand rub, make out anther stamens, then with fine sieve to remove impurities such as petals again. The anthers thin floor in the newspaper, in the indoor shade, indoor drying, ventilation, dust, temperature control in 20-25 C. The temperature is too low, the anther is not easy to crack, loose slow; the temperature is too high, the impact of pollen vitality. Note that the anthers must not be exposed to sunlight. 24 hours after the dry dehiscence of the anthers carefully basket, remove impurities can get yellow pollen. Store the pollen in a brown glass bottle and store it in a refrigerator below 0 degrees celsius.
3 pollination.
Artificial point method. First of all, ready to 5 cm long bicycle valve core, one end of the match on the stick, one end of the roll back to the volume of 0.5 cm, the point of the device that is to complete the production of pollination. Selection of sunny days, on the morning of 10 pm to 3 points granted pollination. One end of the pollination valve core is dipped in pollen, and points are given to the stigma of the newly opened flower, and each time the pollen is used to pollinate the 3-4 flower. The newly opened flower petal fresh, mucus on the stigma, the easy pollination fertilization, pollination effect. With the use of pollen to take, when not put back.
Pollination amount depends on the size of the tree, tree vigor, strength of technology management level to determine the general need pollination 3-4.
Methods: artificial pollen and dust clean and free of impurities of talcum powder or fine dry starch by 1: the proportion of 10-20 mixed into gauze bags, the gauze bag is fixed on the top of a long pole, then the jitter in the flowering of the canopy, the pollen alighted on the stigma, which can increase the fruit setting rate.
Note: low temperature and dry hot wind and other adverse weather directly affect the effect of artificial pollination, 18 ~ 25 degrees in the morning of the best pollination. When the temperature is below 15 DEG C, the pollination effect is not ideal [10]. If the rain within 2 h after pollination to pollination. In artificial pollination, the combination of flower and fruit preservation agent can be combined. The rest of the pollination, pollen germination rate and identification of less than 20% without drying and pollen, the following year cannot be used alone.

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