How do bees pollinate? Please tell me the steps to use in the language book

The role of insects in imparting pollen to plants.

This section is not covered much in the report, but I will add a few and list them separately.

About two-thirds of seed plants are pollinated by insects. Plants provide insects with nectar containing 50% sugar, pollen containing 15-30% protein, and other useful substances. In the class of insects, there are mainly 4 order pollinator insect species, including Coleoptera, Diptera, Lepidoptera and Hymenoptera.

The most studied species that have shown co-evolution with seed plants are honey bees.

The bee's superb flight ability and directional activity make it have a constant relationship with the pollination of certain species of angiosperms. During pollination, flowers also signal bees with their form and scent, such as prolonged flowering to change the color and fragrance of the flowers. It has been observed that the flowers of 77 plant species change color at different times after opening.

Experiments have shown that bees can distinguish at least 700 different floral scents, and the scent of pollen is different from that of flowers, and bees can distinguish plant species by the smell of pollen. The activities of pollinators contribute to the specialization of flower shapes, such as the formation of petals into a cylindrical shape. Fossil observations have revealed a large number of stamens, pistils and petals in early primitive flowers, arranged in a spiral pattern, such as the current magnolia.

Later, it developed into radial symmetry, and finally became a shape suitable for insect pollination, including the reduction of petals and sepals, the corolla became cylindrical, and the nectar glands moved to the base, allowing insects with only long mouthparts to suck nectar. After the late Cretaceous, symmetrical flower shapes, such as those of leguminous plants, were produced, and fossils were only found in the early Tertiary period. The development of flower shape specialization indicates that the interaction between hymenoptera pollinators and angiosperms has reached a new stage.

Special case: Some orchids trick bees into pseudo-mating.

About one-third of orchid species do not produce honey, but instead produce a female pheromone volatile component similar to that of the genus Pintail to attract males, and the flowers are shaped like females and have hairy hair, and roaming males stop on the flowers to produce mating movements. This behavior is called pseudocopulation. At this time, the pollen block is attached to the bee body, and when the bee flies to another flower with the pollen block, it meets the stigma of the flower and achieves the purpose of pollination.

Therefore, the comprehensive analysis of bee pollination flowers is very much, this kind of plant we call insect flowers, generally has more showy flowers and aromatic smell, can attract bees, bees pollinate in the mountains The flower categories are very mixed, and the honey produced is called mountain nectar, which has the highest utilization value.

I don't know if you understand?

You should read biology books for this.

In order to collect nectar, bees fly around the flowers, and their bodies will be stained with the pollen of the stamens, and when they fly near the pistils, they will carry the pollen to the stigma of the pistils to complete pollination.

Most flowers have sepals, petals, stamens and pistils, which are called complete flowers, and some flowers lack part of them, which are called incomplete flowers. The stamens are divided into anthers, which have pollen inside and filaments underneath the stamens; The pistil consists of a stigma, a columella, and an ovary with ovules inside. The bee first uses its legs to pollen the anthers of the stamens, and then uses the pollen legs to get the pollen on the stigma of the pistil, because the stigma has mucus, so the bees can easily get the pollen on it, and then the pollen will pass through the flower column to the ovule in the ovary, and finally new flowers will grow.

Spring bee pollination is not its original intention.

Because bees collect pollen for their own bee food, and collect nectar to make honey. When collecting pollen and nectar (pollen is collected into the "pollen basket" on its legs), some pollen will stick to its head, body, and legs, and when it reaches another flower, it is likely to stick these pollen to its stigma, thus completing the whole process of pollination.

1) Avoid spraying pesticides during the flowering period of crops, otherwise it will cause a large number of bees to die of poisoning. If spraying is necessary, the colony should be temporarily relocated or claustrophobic for a short period of time, and the hives should be shaded, ventilated and fed.

2) Pay attention to the reasonable arrangement and configuration of the bee colony. If the crop area is less than 70 hectares, the bee colony can be arranged on either side of the pollination lot; If the area is more than 70 hectares or the lot is more than 2 km extended, the colonies should be arranged in groups at the lot** and at both ends, and each group should release 20 30 colonies so that the bees can fly to any part of the Congchang crop and increase the pollination effect. The number of bee colonies should be determined according to the area, distribution, growth, flowering period and colony potential of the crop.

Generally, a swarm of bees (10 boxes) pollinates about hectares of oil crops, fruit trees, pastures, and melons.

3) Attention should be paid to organizing strong group pollination to enhance the pollination effect.

4) Pay attention to the use of inducers to induce and promote the enthusiasm of bees to pollinate specific crops.

5) Take Zheng Dan to master the time for the bee colony to enter the field. Generally, the bee colony is transported into the field at the beginning of crop flowering, and some crops with low sugar content should be pollinated with stupidity, and more than 2% of the crop should be entered.

Can survive for 1-4 months.

The life cycle of worker bees: eggs (3 days), larvae (6 days), pupae (12 days), a total of 21 days from egg to maturity.

Whenever a bee reaches out to collect nectar, the stamens stick a little pollen to the bee. Like butterflies and Coleopteran insects, bees also contribute to plant reproduction by disseminating pollen. Your understanding is generally correct, but when bees collect honey, pollen inadvertently sticks to the bee's legs, and bees inadvertently bring pollen from this flower to that flower, not "pollen falling down during flight", which is objectively beneficial to plant pollination, and is also one of the ways of plant pollination, oh.

Bees have fine hairs on their bodies (abdomen), and when bees collect nectar, pollen sticks to the bee's body due to contact with the bees, and when it flies from one flower to another, it carries pollen to the bee, thus aiding pollination.

Pollen is imparted.

The only way for higher plants to reproduce is pollination, where pollen from stamens is transferred to the pistils. Wind plants are pollinated by the wind, whereas 80 percent of higher plants are insect-borne plants, meaning they rely on insects for pollination. Housebees are responsible for 65 to 95 percent of insect vector tasks, but the most active pollinators are solitary bees such as leafcutter wasps.

It is believed that the economic benefits of bee pollination go far beyond honey production.