Advertisements
Advertisements
प्रश्न
Briefly explain why a gardener prefers to grow certain plants vegetatively?
उत्तर
Gardener prefer to grow certain plants by vegetative method. The advantages in doing so are as follows:
- Reproduction by vegetative parts takes place in a shorter time.
- New plants, thus produced, spread very fast in a small area.
- It is a surer method.
- All the characters of the mother plant are retained by the daughter plants.
APPEARS IN
संबंधित प्रश्न
List two advantages of vegetative propagation.
How does Planaria reproduce? Is this method sexual or asexual?
Fill in the following blank with suitable word :
Strawberry plants are propagated by the natural............... method.
Why does bread mould grow profusely on a moist slice of bread but not on a dry slice of bread?
Name one commonly used vegetable which is propagated by using tubers.
Name one unicellular organism which reproduces by the same asexual process as Hydra.
There are four tiny organisms A, B, C and D. The organism A is a parasitic protozoan which causes a disease known as kala-azar. The organism B is a microscopic single-celled animal which causes malaria disease in human beings. The organism C is a unicellular animal which can change its body shape according to need, it has no fixed shape. The organism D is also a unicellular animal which is slipper-shaped having a large number of tiny hair all around its body.
(a) Name the organisms A, B, C and D
(b) Name one characteristic body feature of organism A.
(c) Name the insect which carries organism B and transmits it from one person to another.
(d) What name is given to the asexual method of reproduction of (i) organism A, and (ii) organism B?
(e) Where do organisms C and D live?
State whether the following statement is true (T) or false (F):
Cutting and grafting are natural means of reproduction.
Identify the reason because of which cambium is essential for grafting in plants.
The symbiotic association between fungi and algae is called ______.
