Which of the following pairs is mismatched example of the plant with its flowering response?

Options

A. Triticum aestivum - LDP
B. Zea mays - DNP
C. Glycine max - SDP
D. Raphanus sativa - SLDP

Answer

To determine which pair is a mismatched example of a plant with its flowering response, we need to understand the concepts of photoperiodism and the classifications of plants based on their flowering responses. Here’s a step-by-step solution:

### Step 1: Understand Photoperiodism
Photoperiodism is the response of plants to the relative lengths of light and dark periods. It affects their growth and flowering.

**Hint:** Remember that photoperiodism categorizes plants into three types: long day plants, short day plants, and day-neutral plants.

### Step 2: Identify Long Day Plants
Long day plants require longer daylight hours to flower. Examples include:
- Triticum aestivum (wheat)
- Oat
- Sugar beet
- Spinach
- Barley

**Hint:** Long day plants typically flower when the day length exceeds a certain critical duration.

### Step 3: Identify Day Neutral Plants
Day neutral plants do not depend on the length of day or night to flower. They can flower at any time of the year. Examples include:
- Maize
- Tomato
- Cucumber

**Hint:** Day neutral plants are versatile and can bloom regardless of light conditions.

### Step 4: Identify Short Day Plants
Short day plants require shorter daylight hours to initiate flowering. Examples include:
- Glycine max (soybean)
- Potato
- Tobacco
- Chrysanthemum

**Hint:** Short day plants typically flower when the day length is below a certain critical duration.

### Step 5: Analyze the Given Options
Now, we need to analyze the options provided in the question:
1. Triticum aestivum - Long day plant (Correct)
2. Maize - Day neutral plant (Correct)
3. Glycine max - Short day plant (Correct)
4. Raphanus (Radish) - This is incorrectly labeled as a short day plant; it is actually a long day plant.

**Hint:** Carefully check the classification of each plant against the definitions of long day, short day, and day neutral plants.

### Conclusion
The mismatched pair is option 4, where Raphanus (Radish) is incorrectly identified as a short day plant when it is actually a long day plant.

**Final Answer:** Option 4 (Raphanus - Short day plant) is the mismatched example.