Question 2: Plant propagation method (1) ramet propagation can be divided into bulbs (such as saffron), blocks (such as yam and bletilla striata), roots (such as salvia miltiorrhiza and aster) and ramets (such as Amomum villosum and Ophiopogon japonicus).
(2) Layered propagation of Aristolochia, Rose, Polygonum Multiflori Radix, Fructus Viticis, Fructus Forsythiae, etc. Can be spread in this way.
(3) Cutting propagation of grape jasmine
① Grafting apple peach
② Bud grafting jujube
(3) docking pomegranate
③ Sowing methods: wheat and corn.
Question 3: How do five common plants reproduce? There are many methods of seedless reproduction. Can be divided into the following categories:
1, sexual reproduction
Sexual reproduction, also known as seed reproduction, is a process of reproduction with the seeds of flowers. In recent years, embryos are taken from seeds and cultured to form new plants, which is called embryo culture. Most annual and biennial flowers and some perennial flowers usually propagate through seeds. Most of these seeds are f 1 generation seeds, which have excellent properties, but they need to be seeded every year, such as Cuiju, Celosia cristata, Sage, Calendula, Zinnia, Corydalis tricolor and Petunia.
2. Asexual reproduction
Asexual propagation, also known as vegetative propagation, is a propagation method that takes some flower vegetative bodies (roots, stems, leaves and buds) as materials and uses the totipotency of plant cells to obtain new plants. It usually includes meristem, cutting, grafting, layering and other methods. Woody flowers, perennial flowers and perennial flowers cultivated once or twice in greenhouse often use meristem and cutting propagation. Such as poinsettia, chamomile, calendula, Petunia, guava and so on. Cactus succulents are usually propagated by cutting and grafting.
3. Spore reproduction
Spores are directly produced by fern sporophytes, not bisexual, so they are essentially different from the formation of seeds. Many ferns are important foliage plants. In addition to ramet propagation, spores can also be used for propagation. Such as nephropteris, Adiantum, Batfern, etc. Are propagated by spores.
4. Tissue culture
Some cells, tissues or organs of plants are inoculated on a certain culture medium under aseptic conditions and cultured in a culture container to obtain new plants. The propagation method is called tissue culture, also known as micropropagation.
Question 4: How do plants reproduce? 1, seed propagation 2, spore propagation 3, cuttage propagation 4, tuber, rhizome or bulblet propagation, such as potato, sweet potato (tuber propagation) and Huangdu (bulblet propagation).
Question 5: How do trees reproduce? Plants are hermaphroditic, but most of them are hermaphroditic. Pollen is spread by insects such as wind or butterflies, which are called "wind-borne flowers" and "butterfly-borne flowers". Some non-flowering plants will explode at some point, be blown away by the wind or be eaten by animals and then float out, so that they can reproduce.
Herbs and woody plants can be easily distinguished to see if there are tall trunks and crowns.
Annual is the so-called come and go, with each season, it will sprout again every year. Some plants are not, that is, perennial plants.
Question 6: How do most plants reproduce? Seed reproduction is mostly.
There are a few asexual reproduction.
Asexual reproduction refers to, for example, viviparous cutting of stolons to reproduce.
And the lateral bulb of the bulb.
Question 7: How do plants reproduce? Sexual and asexual reproduction. Simply put, it is cutting propagation with seeds and without seeds.
Question 8: How do reproductive organisms (animals and plants) reproduce? How do reproductive organisms (animals and plants) reproduce?
There are many kinds of plants, such as ferns, dicotyledons, gymnosperms and so on. Every different type of plant has a different way of reproduction, some with seeds and some with spores. This is fern. Animals are generally mammals. You can learn about their feeding methods.
The reproductive mode of most animals is sexual reproduction (that is, female and male individuals produce sexual germ cells to form fertilized eggs and reproduce offspring through fertilization), and a few animals can also reproduce asexually, such as paramecium mentioned upstairs. There are many ways of plant reproduction, including sexual reproduction and asexual reproduction. Higher plants generally have sexual reproduction, such as angiosperms, which are fertilized by pollination. Some higher plants can also reproduce asexually, such as cutting and grafting of woody plants. Asexual reproduction refers to a reproductive mode that does not form bisexual germ cells and does not undergo fertilization. There are budding propagation, fission propagation, spore propagation and vegetative propagation, which are common in daily life, such as potatoes.
Question 9: How do non-flowering plants reproduce their offspring? After attending class 6 (2) of Tiyu Road Primary School in Xiaoshan District, Hangzhou, I learned that plants can be divided into two categories: non-flowering plants and flowering plants. I used to think that plants need to bloom to reproduce the next generation, while non-flowering plants grow in dark and humid places. If they don't blossom, there will be no fruits and seeds. How do they reproduce? I have a big problem. When I went climbing before, I saw ferns and bryophytes growing in some stones and bushes. There are many mosses on the rocks near the stream, and some stones are covered with mosses. On the edge of the big tree, ferns flourish. Do they pass through leaves or roots like some plants? If they go through the roots, they should grow very closely. I came to the corner with a magnifying glass to observe on the spot, but what I saw was not like this. After I pulled them all out, I couldn't see any connection. Thin and small leaves are used to absorb sunlight. How do they reproduce? Moss is too small and short to be seen at all. I asked my mother, and she didn't know. I looked it up on the Internet, and it turns out that ferns reproduce by spores. First of all, sporangia will grow in the lower part of fern leaves (ventral surface and shady surface), and many sporangia will gather together to form a sporangia group, which can be observed by naked eyes. When the spores mature, the lid turns out and falls off, the sporangium will rupture and the spores will be released. No wonder those ferns are vast tracts. They are propagated by spores under leaves. With so many spores, there must be many ferns. Pteridophytes began to appear in Devonian. In the process of reproduction, all ferns need water and generally live in fertile places. So it is difficult for us to see their traces in dry places or places with great seasonal changes. Bryophytes from spore germination to gametophyte formation, gametophyte produces male and female gametes to reproduce offspring. Algae reproduce through cells. They are different, but they are basically the same. I finally know how non-flowering plants reproduce. There are many things I have never seen in the biological world, and I will definitely continue to observe and discover them.