Step 1: Understanding the Concept:
Orchard planting systems are designed to organize fruit trees to maximize land utilization, light interception, and ease of management.
Step 2: Detailed Explanation:
We can match the planting systems in List I with their features in List II:
1. Hexagonal System (A): In this layout, trees are planted at the corners of equilateral triangles.
This arrangement accommodates approximately $15\%$ more trees per unit area than the standard square system, making it highly space-efficient. Thus, A matches with III.
2. Quincunx System (B): This is a modified square system where a temporary, fast-growing "filler plant" is added in the center of each square.
Common filler crops include papaya, banana, or phalsa, which provide early income before the main crop reaches maturity. Thus, B matches with I.
3. Meadow Orcharding (C): This is an ultra-high-density planting system that originated in Israel.
It is designed to maintain small, productive trees, such as in high-density guava cultivation. Thus, C matches with II.
4. Contour System (D): This system is used in hilly and sloped terrains to prevent soil erosion.
Because the rows follow the natural elevation contours of the hills, the spacing between rows and plants varies based on the slope. Thus, D matches with IV.
This gives the match: A - III, B - I, C - II, D - IV.
Step 3: Final Answer:
The correct matching sequence is A - III, B - I, C - II, D - IV, which corresponds to Option (A).