植物种子传播的方式（Thewayplantspropagateseeds）
植物种子传播的方式（The way plants propagate seeds）
The way plants propagate seeds
Anemophily (Pu Gongying) 3 (pollen) water (Jin Yuzao). There is also an explosion of its own (beans). Human propagation, animal carrying (Cang Er)
,
Do you know the secret of spring: flying catkins flying? Catch a catkins look carefully, will find some small particles, it is the seeds of willow, willow catkins flying is to rely on the seeds spread far away home. There are also seeds of poplars and dandelions.
Take a look at this plant belonging to the gourd family and have a small melon with a burr". When the melon is ripe, slightly touched the melon will fall, and the guane seeds together with mucous ejected from the top, a range of up to five meters away, how magical it ecballium was named.
约会大作战08You may have seen the Xanthium sibiricum, and every autumn, when its fruit is ripe, you will find the opportunity to hook it up on the person or animal that touches it and take the opportunity to travel. Oexamine will find its bristle tipped with barbs, imperceptibly you have seed spread its obligations.
Throw some plants by mechanical means of seed spread out, Oxalis is one example. It is a very common wild weeds, small yellow flowers or small flowers, flowers after the knot with five edges of the capsule, when ripe fruit along loculicidal, shell curled,
seed will pop up.
孝敬父母歌词
Bomb Impatiens can also play the fruit cracking than Shamrock throw too strong, the bullet to the Quartet, too
Another example of mechanical dispersal of seeds.
劳动的名言How do plants propagate seeds?
When fruits and seeds are mature, plants generally rely on wind, water, and animals.
Seeds or fruits that are carried by the wind are very light in structure. For example, rounded wings and maple elm around the fruit wings of the wings, to adapt to the spread of wind. Dandelion achenes very small, long crested top, like a parachute, when mature, as long as the wind will fly far away, "settle down".
Certain activities of human beings and animals often help plants to spread seeds intentionally or unintentionally. For example: Bidens pilosa, Xanthium sibiricum and other plant seeds on a hook or thorn, can hook in animal fur and people's clothes, was taken away. Some birds often eat some fruit plants, these plants the seed coat is hard, not easy to be digested, so when the bird defecation will, with seed, germinate and grow up in a new place.
Water flow is also a way of transmitting seeds and fruits. After heavy rains, many fruits and seeds are often washed elsewhere. Not afraid of coconut water immersion, and floating, it can
across the sea, so the growth of coconut in the tropical islands and coasts.
Other plants spread seeds by their own special functions, such as pods that crack themselves when they mature and shoot seeds out. Such a way is known as auto propagation.
Most of the seed plants are relying on seed breeding. The way seeds are transmitted, according to the literature, has many different classifications, and can be broadly divided into the following four ways: Animal transmission, wind propagation, water transmission, and self propagation!
Here are some examples:
校园搞笑故事
1 animal transmission
(1) birds propagate seeds that are transmitted by birds, mostly fleshy fruits, such as berries, drupes, and flowers. Lauraceae and Ficus species of birds favorite foods, birds of Lauraceae seed after seed spit. According to the results of this study, scholars speculate that the seeds of birds through the seeds of the plant is a relatively advanced group, because the birds spread the distance of the seeds is the farthest in all ways.
(2) ants, which spread ants on seed dispersal, usually act as the two propagator. Some birds feeding seeds, but not all consume all the nutrients, the seeds that fall on the ground on the surface there are some remnants of nutrient for ants feeding on a second-hand spread this time are ants.
(3) mammalian transmission of mammals, most of which belong to some medium, large fleshy fruits or nuts. Generally speaking, mammals are large in size and require large amounts of food, so they choose large fruits. For example: Fagaceae seeds mainly rely on rodent animal to spread; Taiwan and Taiwan enjoy feeding monkeys hair persimmon banana fruit, also help these plants spread
(4) certain activities of human beings and animals often help plants to spread seeds intentionally or unintentionally. For example: Bidens pilosa, Xanthium sibiricum and other plant seeds on a hook or t
horn, can hook in animal fur and people's clothes, was taken away. Salicaceae in poplar by Yang Xu spread the seeds of poplar infructescence will be ripe, fruit cracking Yang Xu flies away on the street, Yang Xu spread can cause environmental pollution, therefore, should be a male poplar trees, not a female poplar.
2 winds propagation
Some seeds will grow wings or shapes such as feathery appendages, fly with the wind. In Taipei botanical garden winged seeds contain Qingfeng, India rosewood and many gymnosperms; having feathery appendages are mostly herbaceous plant seeds. In addition, some small seeds, which have a relatively large proportion of surface area to weight, can therefore be seeded with the wind.
Compositae achenes mature dandelion, pappus, like a parachute, flapping in the wind, the seeds spread far away.
中国祝福语3 water transmission
Water flow is also a way of transmitting seeds and fruits. After heavy rains, many fruits and seeds are often washed elsewhere. Not afraid of coconut water immersion, and floating, it can across the sea, so the growth of coconut in the tropical islands and coasts.
4 autologous transmission
Some plants rely on mechanical seed spread out, Oxalis is one example, it is a very common wild weeds, small yellow flowers, flowers after the knot with five edges of the capsule, when ripe fruit along loculicidal, seed shell curling pop, projectile to the distant. The fruit of the Impatiens flower can crack and stretch the seeds to the four directions. This is another example of mechanical dispersal of seeds.
How do plants propagate seeds?
Plant pollination is divided into two kinds, with pollination and cross pollination; which is mainly by cross pollination insects carry pollen, called anthophilous pollen; depend on wind power transmission, anemophilous flower.
Common methods of plant dispersal:
Salix root
Do you know the secret of the spring catkins flying? Catch a catkin, careful observation will find some small particles, it
>观开学第一课有感

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。