The correct option is Pulses.
Explanation
Leguminous crops belong to the botanical family Fabaceae (formerly Leguminosae). A defining characteristic of most leguminous crops is their ability to fix atmospheric nitrogen into the soil through a symbiotic relationship with Rhizobium bacteria found in their root nodules. This process helps in restoring soil fertility.
Option Analysis:
- Pulses is Correct: Pulses (including gram, tur/arhar, urad, moong, peas, and lentils) are the most common leguminous crops grown in India. They are rich in protein and are typically grown in rotation with other crops to replenish soil nitrogen.
- Jowar is Incorrect: Jowar (Sorghum) is a coarse cereal belonging to the grass family (Poaceae). It is a staple food crop but does not possess nitrogen-fixing capabilities.
- Millets is Incorrect: Millets (such as Bajra and Ragi) are a group of small-seeded grasses also belonging to the family Poaceae. They are classified as cereals, not legumes.
- Sesamum is Incorrect: Sesamum (Sesame or Til) is an oilseed crop belonging to the family Pedaliaceae. While it is an important commercial crop, it is not a legume.
Key Takeaway: Pulses are leguminous crops that fix atmospheric nitrogen, distinguishing them from cereals (like Jowar and Millets) and oilseeds (like Sesamum) which deplete soil nitrogen.