Step 1: Understanding the Concept:
The ICAR-Indian Institute of Vegetable Research (IIVR) in Varanasi, India, breeds and releases high-yielding, disease-resistant vegetable varieties under the "Kashi" series prefix.
Step 2: Detailed Explanation:
Let us analyze the crop associations for different Kashi varieties:
- Kashi Chayan (VR-14) is a highly popular, high-yielding variety of Chilli (*Capsicum annuum*) developed and released by ICVR-IIVR.
This variety produces attractive, dark green, highly pungent fruits that turn bright red upon maturity.
It is characterized by its compact, erect growth habit and resistance to major viral diseases, particularly the Chilli Leaf Curl Virus (CLCV), making it highly popular among farmers in northern and central India.
Let us review other common Kashi varieties:
- Cowpea: *Kashi Kanchan* and *Kashi Nidhi*.
- French bean: *Kashi Sampanna*.
- Tomato: *Kashi Vishesh* and *Kashi Amrit*.
Therefore, *Kashi Chayan* is a variety of chilli.
Step 3: Final Answer:
Kashi Chayan is a variety of Chilli, corresponding to option (D).