Q6. Differentiate between

(a) Racemose and cymose inflorescence

(b) Fibrous root and adventitious root

(c) Apocarpous and syncarpous ovary


 

Racemose Inflorescence

 

Cymose Inflorescence

1

Younger flowers are present at the tip while older flowers are arranged at the base of this inflorescence. Such an arrangement is called acropetal succession.

1

Younger flowers are present at the base of the inflorescence, while older flowers are present at the top. Such an arrangement is called basipetal succession.

2

The main axis in racemose inflorescence continues to grow and produce flowers laterally.

2

The main axis in cymose inflorescence has limited growth, which later terminates into a flower.

 

Fibrous root

 

Adventitious root

1

In monocots, the primary root which develops from the radicle of the seed is short-lived and is replaced by a large number of roots arising from the base of the stem.

1

These roots arise from any part of the plant other than the radicle of seeds.

2

It is found in wheat and other cereals.

2

It is found in banyan, Monstera, and other plants.

 

Apocarpous ovary

 

Syncarpous ovary

1

The flowers with apocarpus ovary have more than one carpel. These carpels are free.

1

The flowers with syncarpous ovary have more than one carpel. However, these carpels are fused.

2

It is found in lotus and rose flowers.

2

It is found in the flowers of tomato and mustard.