Question

Write short notes on Racemose inflorescence

Answer 1

Racemose inflorescence is a type of flower arrangement where the main axis continues to elongate, producing flowers along its sides. Key points:

1. Indeterminate Growth: Racemose inflorescence displays indeterminate growth, meaning the main axis doesn't terminate in a flower but keeps growing.

2. Flower Arrangement: Flowers in a racemose inflorescence are arranged along the main axis in a more or less acropetal (from base to apex) succession.

3. Types: There are variations of racemose inflorescence, such as simple raceme (unbranched), compound raceme (branched), and panicle (branched raceme).

4. Example Plants: Examples of plants with racemose inflorescence include mustard and radish.

5. Continuous Growth: Racemose inflorescences can have flowers at various stages of development due to the continuous growth of the main axis.

This type of inflorescence allows for prolonged flowering and is contrasted with cymose inflorescence, where the main axis terminates in a flower, resulting in determinate growth.

Answer 2

Racemose inflorescence is a type of flower arrangement where the main axis continues to grow, producing flowers along lateral stems.

 Characteristics include an indeterminate growth pattern, with lower flowers maturing first.

 Examples include the snapdragon and mustard plants.

Answer 3

• Growth of peduncle is infinite or unlimited.
• Apical bud never terminates into flower.
• Flowers are arranged in acropetal succession (i.e. younger flower at the apex and older at the base)
• Opening of flowers is centripetal (younger flowers towards the centre and open later while older towards periphery and open first)
• e.g. Gold mohur, Sunflower, Caesalpinia.