1. Saccharum officinarum: Known as the noble cane, this species is cultivated for its high sugar content.
2. Saccharum spontaneum: A wild species used for breeding and improving sugarcane varieties due to its disease resistance.
3. Saccharum barberi: Found in northern India, it is known for its tolerance to adverse conditions.
4. Saccharum sinense: Commonly cultivated in China, it has moderate sugar content and good adaptability.
These species play a vital role in sugarcane production and breeding programs.
| Case No. | Lens | Focal Length | Object Distance |
|---|---|---|---|
| 1 | \(A\) | 50 cm | 25 cm |
| 2 | B | 20 cm | 60 cm |
| 3 | C | 15 cm | 30 cm |