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प्रश्न
Write four lines on the following: Grafting
उत्तर
Here a detached part of one plant called scion, is inserted into the stem of a rooted plant called stock. Scion is a short piece of detached shoot containing several buds. After a few days, vascular connection is established between the joined parts and parenchyma tissue develops at the junction of the graft. Examples of plants in which grafting is carried out are apple, pear, mango and guava.
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संबंधित प्रश्न
How does Planaria reproduce? Is this method sexual or asexual?
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The cut part of plant stem (having roots and fixed to ground) which is used in the process of grafting is known as :
(a) stock
(b) scion
(c) cutting
(d) bud
Complete the following chart:
| Asexual reproduction | Sexual reproduction | ||
| 1. | Reproduction that occurs with the help of somatic cells is called as asexual reproduction. | 1. | ____________ |
| 2. | ____________ | 2. | Male and female parent are necessary for sexual reproduction. |
| 3. | This reproduction occurs with the help of mitosis only. | 3. | ____________ |
| 4 | ____________ | 4. | New individual formed by this method is genetically different from parents. |
| 5 | Asexual reproduction occurs in different individuals by various methods like binary fission, multiple fission, budding, fragmentation, regeneration, vegetative propagation, spore production, etc. | 5. | ____________ |
Grafting is not possible in the monocots because they
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- The body of the parent organism breaks up into many fragments and each fragment starts to live as an independent new organism.
- Give two examples of living organisms which follow this type of reproduction method.
When you keep food items like bread and fruits outside for a long time, especially during the rainy season, you will observe a cottony growth on them.
How does the growth take place?
When one of the following is correctly matched?
