CORRECT sequence of evaluation and release of new cultivars is ........
(i) growing plants in natural fields in different agro-climatic zones .
(ii) growing plants in research fields under controlled conditions.
(iii) released of improved variety under a new name .

Options

A. (i)– (ii) – (iii)
B. (ii)– (iii) – (i)
C. (ii)– (i) – (iii)
D. (i) – (iii) only

Answer

To determine the correct sequence of evaluation and release of new cultivars, we need to analyze the steps involved in the process. Here’s a step-by-step breakdown:

### Step 1: Growing plants in research fields under controlled conditions
- This is the initial stage where new cultivars are grown in a controlled environment. This allows researchers to monitor the plants closely, assess their growth, and understand their nutrient requirements. Controlled conditions help in minimizing external variables that could affect the outcome.

### Step 2: Growing plants in natural fields in different agro-climatic zones
- After the initial testing in controlled conditions, the next step is to evaluate the plants in natural fields. This involves growing the cultivars in various agro-climatic zones to determine how well they adapt to different environmental conditions. This step is crucial for assessing the resilience and performance of the cultivars in real-world scenarios.

### Step 3: Release of improved variety under a new name
- Once the cultivars have been thoroughly evaluated in both controlled and natural settings, and their performance is satisfactory, they can be released to the public. This release is typically done under a new name, which often reflects the research or the institution that developed the cultivar.

### Final Sequence
Based on the above steps, the correct sequence of evaluation and release of new cultivars is:
1. Growing plants in research fields under controlled conditions (ii)
2. Growing plants in natural fields in different agro-climatic zones (i)
3. Release of improved variety under a new name (iii)

Thus, the correct answer is: **(ii) → (i) → (iii)**.

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