Question

What is the seed rate for spreading type groundnut ?

• A. 100-150 kg/ha
• B. 90-100 kg/ha
• C. 60-70 kg/ha
• D. 30-40 kg/ha

Hint:

Always remember that spreading type groundnuts require wider spacing due to their horizontal growth habit, which makes their seed rate lower than that of bunch types.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Seed rate in crop cultivation depends on seed size, germination percentage, growth habit, and the recommended spacing between plants.
Groundnut (*Arachis hypogaea*) has two distinct growth habits: bunch (erect) and spreading (decumbent/prostrate).

Step 2: Detailed Explanation:
The plant growth habit determines the spacing requirements and the resulting seed rate:
1. Spreading Type Groundnut: These plants spread horizontally along the ground. Because of their wide-spreading canopy, they require more space to grow.
The recommended spacing is typically $45 \text{ cm} \times 15 \text{ cm}$.
Because of this wider spacing, fewer plants are needed per unit area, resulting in a lower seed rate of $80\text{ to }100 \text{ kg/ha}$ (or $90\text{ to }100 \text{ kg/ha}$ of kernels).
2. Bunch Type Groundnut: These plants grow erect and do not spread horizontally.
They are planted closer together, typically at $30 \text{ cm} \times 10 \text{ cm}$ spacing.
This higher plant density requires a higher seed rate, usually $100\text{ to }120 \text{ kg/ha}$.
Evaluating the options, $90-100 \text{ kg/ha}$ is the standard, scientifically recommended seed rate for spreading groundnuts.

Step 3: Final Answer:
The seed rate for spreading type groundnut is $90-100 \text{ kg/ha}$, corresponding to option (B).