Which of the following is a correct match between crop, variety and resistance to diseases ?

Options

A. `{:("Crop", "Variety","Resistance to disease"),("Wheat","Himgiri","White rust"):}`
B. `{:("Crop", "Variety","Resistance to disease"),("Cowpea","Pusa Komal","Bacteria blight"):}`
C. `{:("Crop", "Variety","Resistance to disease"),("Brassica","Pusa Sadabahar ","Black rot"):}`
D. `{:("Crop", "Variety","Resistance to disease"),("Chilli","Pusa swarnim","Chilly mosaic virus"):}`

Answer

To determine the correct match between crop, variety, and resistance to diseases, we will analyze each option provided in the question step by step.

### Step-by-Step Solution

1. **Examine the First Option:**
- **Crop:** Wheat
- **Variety:** Hemigree
- **Resistance:** White rust
- **Analysis:** Hemigree is indeed a variety of wheat, but it is not resistant to white rust. It is resistant to leaf rust and stripe rust. Therefore, this option is incorrect.

2. **Examine the Second Option:**
- **Crop:** Cowpea
- **Variety:** Pusacomal
- **Resistance:** Bacterial blight
- **Analysis:** Pusacomal is a recognized variety of cowpea that is resistant to bacterial blight. This option is correct.

3. **Examine the Third Option:**
- **Crop:** Brassica
- **Variety:** Pusasadabahar
- **Resistance:** Black rot
- **Analysis:** The correct variety of Brassica is Pusasvarnim, which is resistant to white rust, not black rot. Thus, this option is incorrect.

4. **Examine the Fourth Option:**
- **Crop:** Chilli
- **Variety:** Pusasadabahar
- **Resistance:** Not specified correctly
- **Analysis:** Pusasadabahar is indeed a variety of chilli, but it is resistant to chilli mosaic virus, not to any other disease mentioned. Therefore, this option is also incorrect.

### Conclusion:
The only correct match between crop, variety, and resistance to diseases is:
- **Cowpea plant variety Pusacomal is resistant to bacterial blight.**