Do pollen bearers have to be insects?

Not necessarily. Cross-pollination:

1 Insect-borne flowers: Flowers that pollinate with insects as a medium. The characteristics of adaptation to insect pollination are:

The flowers are bright in color, fragrant or peculiar smell, the pollen grains are large, the outer wall is rough or sticky, and they are easy to attach to the body of insects; The stigma of the pistil has a lot of mucus secretion, which tends to stick to the pollen. Most flowering plants are insect-pollinators. Pollinating insects include bees, butterflies, moths, and flies.

2 Bird-borne flowers: Like some special plants such as the upside-down Admiralty and the bird of paradise, their pollen is often visited by hummingbirds and bats, and its long stamens can easily make the nectar-drinking birds full of pollen, which will be transmitted by the birds to other flowers.

3 Wind flowers: The pollen of wind flowers is dry, light and small, and the amount is easy to be blown by the wind, and the pistil increases the chance of receiving pollen, and its stigma expansion is very prominent. Most of the grasses are wind-borne plants, such as poplars, oaks, etc.

4 Water-borne flowers: Many aquatic plants use water currents to pollinate, such as water orchids.

Self-pollination: The stamens and pistils of some plants grow in the same flower, and the pollen of the stamens is transmitted to the stigma of the same flower, soybeans, peas, barley, wheat, sesame, etc. are all self-pollinating.

Birds, insects, wind, mammals.

It's all possible, and even the wind

There are several ways in which pollen can be transmitted:1The pollen is dispersed by the flow of the wind, which fertilizes the flower.

2.by wild bees. Butterflies and flying insects spread pollen.

3.During the flowering season, in a specific location, the farmed bees are used to achieve the purpose of pollination by releasing them in the wild. Today's orchard pollination is predominantly done in this way.

4.Artificial pollination. That is, before the petals burst, when the fruit growers generally call it a bell flower, they will pick off the flowers, take out the pollen sac, put it on a piece of white paper, and place it in the shade, preferably on the kang head to dry until the pollen bursts.

Then put all the pollen into a bottle, then take it to the orchard, and use a pencil with an eraser to dip the pollen into the center of each flower, and dip it once to order many flowers. This method of pollination is more labor-intensive and time-consuming, and is generally not used now. Another method of artificial pollination is to pour pollen into water and stir it well, and then spray it on the tree with a sprayer, which is generally not used now.

This seems to be junior high school biology knowledge! Usually pollen dissemination requires two ways, one is wind vector, that is, pollen drifts around by the wind to achieve the purpose of pollination, and the other is insect vector, mainly some insects that collect nectar are covered with pollen when collecting honey, and then fly to other flowers to collect nectar, so as to achieve the purpose of cross-pollination.

Pollen is spread by high winds in the air, the level of the wind, and bees, which are the main means of pollen transmission, but the wind can also drift away.

Cross-pollination of plants requires external forces to carry pollen through wind, insects, birds, and even water. The most prevalent are wind and insects.

Pollen is spread by bees, and generally bees are scraping the pollen away, and it falls to the root and germination in**?

How is the powder spread, and how is the powder transmitted? If in the large noodles is to use bee tea. Seal avoid, all, this pollen. Bee.

Two ways. First, insect vectors.

Second, wind media.

Pollination is the indispensable stage of sexual reproduction in green plants, and it has two methods: self-pollination and cross-pollination.

Self-pollination: bee pollen of pistils.

passed into the pillars of the same flower. Self-pollinating green plants must be hermaphroditic flowers, but green plants with hermaphroditic flowers do not necessarily carry out self-pollination, and a large number of them carry out cross-pollination. Soybeans, lentils, wheat seeds, wheat, white sesame seeds.

and so on are all self-pollinating.

Cross-pollination: Bee pollen from one flower is transferred to the pillar of another flower of the same main stem, or bee pollen from one flower is transferred to the column of another flower of a different main stem. Cross-pollination is more evolved than self-pollination, due to the somatic cells of both females and males during self-pollination.

The genetic difference is small, and continuous self-pollination will cause the vitality of future generations to decline. At this stage, there are still self-pollinating green plants in nature, which are the integration of the whole process of evolution and related to the breeding of future generations. When the standard is not suitable for cross-pollination, green plants can carry out the reproductive process according to self-pollination.

Most of the green plants in nature are self-pollinating, but there are also some individuals who are cross-pollinated. Self-pollination prevents bee pollen from being damaged by insects. Self-pollinating greenery has the characteristics of smoothness.

Cross-pollination of green plants can only be carried out by external forces, such as wind, insects, birds and even water. More widely there are winds and insects. Future generations are highly dynamic and resilient as a result of cross-pollination.

It is because the females and males are in different natural environments.

, the genetic inheritance of the two is very different. In the whole process of evolution, cross-pollination was gradually selected and developed into the pollination method of most higher plants. The method of transporting bee pollen at wind speed is called wind vector.

The vast majority of sedges are wind-borne greens, such as aspen trees.

Oak, ash, etc. Their flowers are called wind flowers. The perianth of the wind-powered flower is not obvious, there is no bright hue, there is no fragrance and nectar glands, and it cannot attract the help of insects, but their bee pollen is dry, light and small, and the amount is large, which is conducive to being blown by the wind, and a large number of opportunities for pollination are ensured.

The filaments of the pistils of grasses are longer and the anthers are the anthers.

Hanging outside the flowers, it can be scattered in the wind. This wobbling head inflorescence and anthers are all an infusion of wind-borne greenery into wind-pollinated plants. In order to increase the chances of receiving bee pollen, the pistil of the wind flower has a very obvious column extension.

The method of relying on insects to transport bee pollen is called insect vector, and the flower that relies on insect pollination is called insect vector flower. Insect flowers generally have a bright perianth, fragrant taste and honey. The bee pollen volume of insect-borne flowers is large, and the surface layer is not smooth, which is conducive to insect belts.

Flower pollinators include wind vectors (e.g., weeping willows, dandelions), insect vectors (e.g., most orchids), water vectors (e.g., water lilies, algae, salt-loving grasses), autologous vectors (e.g., most cucurbitaceae plants), bird vectors (e.g., peppers), etc.

Wind and insects, so there are wind-borne flowers and insect-borne flowers.

Pollinators.

Under natural conditions, insects (including bees, beetles, flies and moths, etc.) and wind are the two most important pollinators. Hummingbirds, bats and snails can also pollinate. Flowering plants flourish so much in the plant kingdom that they are inseparable from the structure of flowers and insect pollination.

1.Insect vectors. The flowers that rely on insects as a medium for pollination are called entomophily, and the flowers that are pollinated by this method are called entomophilous flowers. Most flowering plants rely on insects for pollination, and common pollinating insects include bees, butterflies, moths, flies, etc.

2。Wind media. The pollination method that transports pollen by wind is called anemophily, and the flower that is pollinated by this method is called anemophilous flower. Most of the grasses and woody plants such as oak, poplar, birch, etc. are wind-borne plants. Gymnosperms such as pine, cedar, cypress, etc., are basically wind-borne plants.

3.Bird Medium. Bird pollination is called ornithophily. There are about 2,000 species of birds that pollinate plants. In some places, tropical birds are even more important as pollinators than insects. The largest are the mynas, the thrush, and the crow; The smallest is the hummingbird.

4.Bat pollination.

In the tropics, bats mostly feed on flowers. The flowers pollinated by bats are also very large, or have a lot of stamens, and baobabs have 1500 2000 stamens per flower. This flower has a lot of nectar; Balsa (ochromapyramidale) produces milliliters of nectar per flower.

5.Hydromedia. The goldfish algae, black algae, and turtle in aquatic angiosperms are pollinated by water power, and this kind of pollination method is called hydrophily. There are two types of water vectors: one is waterborne pollination, such as plants such as Elophyta, Melanophyta, and Bitterweed.

Rape flowers, radish flowers, etc., their flowering time is almost the same as the time of insect activity, because as soon as they bloom, the eggs of insects also hatch, and there are pumpkin flowers, camellias, etc., they are the same as bees and butterflies.

These flowers and some insects are an interdependent relationship, flowers need to rely on them to spread their own pollen, insects also rely on flowers to obtain the substances they need for survival, the two are inseparable, so the flowering time of these flowers is very same as the time of insect activity, and when these flowers bloom, insects can also be seen.

What are the types? Their species can be listed as follows: (1) most of the cruciferous plants; For example, choy sum.

Cabbage. Mustard.

Rapeseed. Kale.

turnips, etc.; (2) Most of the Cucurbitaceae plants: eg.

Wax gourd. Gourd or hairy gourd.

Pumpkin or sweet melon.

Loofah. Momordica charantia.

Buddha palm melon. water melon, etc.; (3) Most Rosaceae plants: eg.

Loquat. Apple.

Plum blossom. Seasonal flowers.

Pear. Wheel plum or spring flowers.

roses, etc.; (4) Most magnolia plants: eg.

Magnolia. White orchids.

Yellow orchid. smiling flowers, etc.; (5) Some butterfly flowers: eg.

Fallen peanuts or peanuts.

Sweet pea. Peas or snow peas. long beans, etc.; (6) Partial number of Asteraceae plants: eg.

Admiralty or Golden Burning Mountain Flower.

Marigold. Sunflower.

Autumn Ying or Shanghai chrysanthemum.

lettuce or lettuce, etc.; (7) Some Solanaceae: eg.

Jasmine. Tomato.

eggplant or dwarf melon, etc.; (8) Partial spiral plants: eg.

Morning glory. Wood roses.

urn vegetables, etc.; (10) Some orchids: eg.

Wild orchids. Phalaenopsis.

Slipper orchid or orchid, etc.

Reference: Most of the plant names are based on the Hong Kong Plant Names Catalogue 1966 of the Urban Council, Hong Kong, China

I have always had allergies, it was only recently that I knew to use anti-mite bedding, because the doctor recommended that I use it, I also thought about it for a long time, I want to say that I want to buy the best, last month when there was a discount to buy a set of [Beizhite] anti-skin burning in the middle of the (mite section) bedding to use it, I really didn't expect that now I feel that the allergy situation has improved a lot. It's a bit more expensive than the average one, but it's worth it! By the way, it is cheaper to buy on the official website than at the counter of a department store!

All plants that have flowers and nectar are.