MEDIUM
10th CBSE
IMPORTANT
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The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

What name is given to the cut stem of tree X having roots?

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Important Questions on How Do Organisms Reproduce

MEDIUM
10th CBSE
IMPORTANT

The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

What name is given to the cut stem of tree Y which has no roots but has some leaves?

HARD
10th CBSE
IMPORTANT

The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

Name the layer Z.

HARD
10th CBSE
IMPORTANT

The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

Why should the layer Z of one cut stem be in contact with the layer Z of the other cut stem?

EASY
10th CBSE
IMPORTANT

The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

Name any four fruit trees which are usually bred by this (grafting) technique.

MEDIUM
10th CBSE
IMPORTANT

The stem of a fruit tree X fixed in the soil is cut in a slanting way. The upper part of the stem of another fruit tree Y of different variety of same species is also cut in a slanting way. The cut stem of tree Y, without roots but having some leaves, is placed over the rooted cut stem of tree X in such a way that their cut surfaces fit together properly. While joining the two cut stems, care is taken to make sure that the layer Z of one cut stem is in contact with layer Z of the other cut stem. The joint of the cut stem is bound tightly with a piece of cloth and covered properly with polythene. Soon the cut heals and the two stems grow together and become one fruit tree producing leaves, flowers and fruits.

State any one advantage of producing fruit trees by this (grafting) technique.

MEDIUM
10th CBSE
IMPORTANT

A small part of the shoot of a plant is removed with a sharp knife. When the lower end of this small part of the shoot is buried in moist soil, it gradually develops roots and shoots and grows to become a new plant.

What is the name of this method of propagating plants?

MEDIUM
10th CBSE
IMPORTANT

A small part of the shoot of a plant is removed with a sharp knife. When the lower end of this small part of the shoot is buried in moist soil, it gradually develops roots and shoots and grows to become a new plant.

What care should be taken while removing a small part of the shoot from the parent plant with a knife?

EASY
10th CBSE
IMPORTANT

A small part of the shoot of a plant is removed with a sharp knife. When the lower end of this small part of the shoot is buried in moist soil, it gradually develops roots and shoots and grows to become a new plant.

Name any two plants which provide us with food directly or indirectly and are grown by this (cuttings) method.