Question

In racemose inflorescence,

• A. Acropetal succession
• B. Solitary flowers
• C. Limited growth
• D. Axis ends in flower

Hint:

\textbf{R}acemose = \textbf{R}unning (unlimited growth) + \textbf{A}cropetal (bottom to top). \textbf{C}ymose = \textbf{C}losed (limited growth).

Answer 1

The Correct Option is A

Step 1 : Understanding the Question
The question asks to identify the characteristic features of a racemose inflorescence, focusing on the growth of the main axis and the arrangement of flowers.
Step 2 : Key Formulas and approach
Inflorescence is divided into Racemose and Cymose. The approach is to contrast the unlimited growth of the former with the limited growth of the latter, specifically noting the sequence of flower production.
Step 3 : Detailed Explanation

Main Axis Growth: In (A) racemose inflorescence, the main axis continues to grow indefinitely. It does not end in a flower, meaning its growth is not limited.

Flower Arrangement: The flowers are produced laterally in an (B) acropetal succession. This means that the oldest flowers are at the base, and the youngest buds are at the apex.

Comparison: In (C) cymose inflorescence, the main axis terminates in a flower, resulting in limited growth. The flowers there are arranged in a basipetal order (oldest at top).

Option Check: Options (A) and (C) define cymose. Option (D) correctly defines the primary trait of racemose.

Step 4 : Final Answer
In racemose inflorescence, flowers are arranged in an acropetal succession. Thus, the correct answer is (D).