Tag: asexual modes of reproduction
Questions Related to asexual modes of reproduction
Identify the correct statement
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Because of marked climatic variations, plants growing near the sea shore do not produce annual rings
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The age of the plant can be determined by its height
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Grafting is difficult in monocot plants as they have scattered vascular bundles
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Healing of damaged tissue is because of activity of sclerenchyma cells
In grafting, stock is
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Stem of desired variety
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Bud of desired variety
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Part of rooted plant
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Part to be grafted
Plants with poor root system are propagated through
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Layering
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Leaf cuttings
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Stem cuttings
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Grafting
Plants with poor root system are propagated through grafting. Grafting is a horticultural technique whereby tissues of the plant are joined so as to continue their growth together. The two plants are selected, one with good roots called rootstock and another with good flowers, fruits, leaves or stem called scion. The scion contains the desired genes to be duplicated. The plants with poor roots but with the desired quality of other products are used as scion and grafted on plants with good mature roots.
Plants of desired qualities are produced by
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Cutting
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Grafting
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Layering
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All of the above
In grafting, we join two plants to each other. The upper part of the graft is called scion that forms the top portion of the plant, and lower part which we call understock makes roots or part of the stem. Grafting is usually joining of only two plants but it may be a combination of several. If we join a third plant between two plants then it forms the trunk or a portion of it. This third plant is called an interstem.
What is the best time for growth of cuttings
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Summer
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Winter
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Spring
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Both spring and rainy season
Cutting is a technique where the vegetative parts which are meristematic in nature is used for propagation so it can easily grow into a new plant. The best time for the growth of cutting is summer because cuttings are very delicate and are prone to fungal growth. In summers the chances of fungal growth are rare as there is least humidity.
Grafting is the art of joining parts of plants such that they grow as one plant. What is the name given to the part of the graft which gives rise to the upper portion?
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Bud
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Stock
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Scion
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Meristem
Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant. In the budding process, a bud is taken from one plant and grown on another. So, the correct option is "C" (Scion).
Grafting results in
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Mixing of traits of two varieties without resorting to hybridisation
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Providing hormones and stimulating chemicals from stock to scion
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Quick growth of desirable variety with poor root system
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All the above
Grafting is a horticulture technique where the living detached portion of the plant is used to regenerate the growth. One plant is selected for its roots and this is called the stock or rootstock. The other plant is selected for its stems, leaves, flowers, or fruits and is called the scion. The joining of scion and stalk is known as inosculation.
If you take the scion of desi mango and stock of dasheri mango, what type of mango will be produced?
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Desheri
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Desi
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Hybrid
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None
The grafted branches present will give rise to dasheri mangoes whereas the rest of the branches will give rise to desi mangoes.
In grafting process
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Desirable characters of stock are transferred to scion
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Desirable characters of scion are transferred to stock.
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Desirable characters of both stock & scion are transferred to new bud
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Character transfer is not possible.
The vegetative own in the where a branch is injured defoliated and pegged down in the ground is known as
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Layering
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grafting
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cutting
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bud grafting