Question

Arrange the critical stages of crop growth for irrigation scheduling in rice from germination to maturity in the correct order.
A. Seedling stage
B. Panicle initiation stage
C. Maximum tillering stage
D. Flowering stage
E. Soft dough stage

• A. A, B, C, E, D
• B. B, C, E, D, A
• C. D, B, C, E, A
• D. A, C, B, D, E

Hint:

Tillering always precedes panicle initiation, and flowering naturally occurs before dough/ripening stages. Thinking of the biological lifecycle avoids any sequential errors.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Crops progress through distinct developmental phases.
Identifying the chronological sequence of growth stages is necessary to schedule critical irrigation events and maximize water productivity.

Step 2: Detailed Explanation:
Let us follow the natural growth cycle of a rice plant from germination to maturity:
1. Seedling stage (A): Occurs immediately after germination, during nursery raising.
2. Maximum tillering stage (C): Vegetative growth phase characterized by the active production of tillers.
3. Panicle initiation stage (B): Transition from vegetative to reproductive phase; the plant begins developing the panicle.
4. Flowering stage (D): Anthesis and fertilization occur.
5. Soft dough stage (E): Ripening stage where the milky starch inside the grain begins to firm up.
The chronological sequence is: Seedling (A) $\rightarrow$ Maximum tillering (C) $\rightarrow$ Panicle initiation (B) $\rightarrow$ Flowering (D) $\rightarrow$ Soft dough (E).

Step 3: Final Answer:
This sequence corresponds to Option (D).