How To plant reproduce without seeds?
Answers
Explanation:
Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants.
Other plants do not make seeds. These seedless plants include mosses, liverworts, club mosses, ferns, and horsetails. They reproduce by forming spores. Spores are often kept in small, bumpy cases on these plants' leaves or stems.
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Explanation: pic have been given of all^^
Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants.
Vegetative reproduction –
three new plants growing up from underground rhizome of New Zealand native iris Libertia sp. The parent is the larger plant in the background on the left.
Plants that reproduce from spores
Ferns are very common in New Zealand. If you turn over a fern frond (leaf), you might see some unusual structures called sporangia.
The sporangia produce very tiny spores. Spores are different to seeds.
They do not contain plant embryos or food stores. When the sporangia break open, the spores are released and dispersed by the wind.
If the spore lands in a suitable environment, it can grow into a tiny plant called a gametophyte.
The gametophyte looks like a little, thin green plate.
It does not have roots, stems or leaves. The gametophyte is a short-lived plant that has both male and female reproductive organs.
These produce male and female gametes that combine in fertilisation to produce an embryo.
Once fertilisation takes place, a new fern plant starts to grow into the plant we recognise as a fern.
Ferns are the only land plant that has these two separate independent living stages.
Fern life cycle
The life cycle of ferns is different from other land plants as both the gametophyte and the sporophyte phases are free living.
This interactive illustrates the alternation of generations in ferns.
Ferns are not the only plants to reproduce from spores. Mosses, liverworts and green algae also have spores.
Plants that reproduce from asexual vegetative reproduction
New plants are sometimes made by asexual vegetative reproduction. These new plants have exactly the same genes as the parent.
Some plants – like strawberries – have stems called stolons that grow out sideways above the soil, and new plants grow up along them.
Other plants send out underground stems called rhizomes, which form new plants at a distance from the parent.
Tubers (for example, potatoes) and bulbs (for example, onions) are also special underground structures that can grow into new plants.
People also make new plants using asexual reproduction.
Gardeners grow plants from cuttings.
They do this by snipping a young shoot off a plant, dipping it in rooting hormone and placing the cutting in a mixture of sand and potting mix.
The cutting soon grows roots and can be transferred outdoors.
Grafting
Grafting is a way of making a new plant. The plants do not grow from seeds.
Grafting allows fruit growers to produce large plantings of the same variety.
Grafting and budding are two ways to make new plants. This video, Grafting and budding, demonstrates these two techniques.
Fruit tree breeders often use grafting to make new plants. Grafting allows them to have large plantings of the same fruit variety with exactly the same genetic material.
Grafting uses the rootstock of a plant that grows well in the soil and joins it to the plant the breeder wishes to produce.
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