Step 1: Understanding the Concept:
Onion (Allium cepa) is traditionally grown as a rabi (winter) crop in India, but cultivation during the kharif (monsoon) and late kharif seasons is critical to ensure year-round supply.
Kharif onion varieties must tolerate heavy rainfall, high humidity, and be resistant to premature bolting and anthacnose/twister disease.
Step 2: Detailed Explanation:
Let us analyze the onion cultivars developed by the ICAR-Directorate of Onion and Garlic Research (DOGR):
- 'Bhima Dark Red': This is a highly popular, dark-red onion variety developed by DOGR specifically recommended for cultivation during the kharif and late kharif seasons.
It yields mature bulbs within 100-110 days after transplanting, displays good tolerance to foliar diseases, and produces uniform, attractive dark red bulbs with a moderate shelf life.
Let us review the other options:
- 'Bhima Light Red': It is a high-yielding variety recommended primarily for the rabi (winter) season, noted for its excellent storage quality.
- 'Bhima Kiran': Another outstanding rabi season variety with excellent shelf life (up to 5-6 months), which is not suitable for monsoon planting.
- 'Pusa Madhavi': An improved, light-red rabi variety developed by IARI, unsuitable for kharif cultivation due to bolting issues.
Therefore, 'Bhima Dark Red' is the correct variety recommended for the kharif season.
Step 3: Final Answer:
The onion variety recommended for the kharif season is Bhima Dark Red.