Q92: Match the Crops given in List-I with their Transpiration Ratios... - Soil, Plant, Water and Atmosphere Relationship - Soil and Water Conservation Engineering- ICAR JRF/SRF 2024 | Agrigyan

• Match Crops with Transpiration Ratios:
• Restored Reference Table:

| List-I (Crops) | List-II (Transpiration Ratios) |
| :--- | :--- |
| (A) Sorghum | (III) 250 |
| (B) Wheat | (I) 500 |
| (C) Potatoes | (II) 650 |
| (D) Maize | (IV) 350 |

• Physiological Rationale:
• Transpiration Ratio: Kilograms of water transpired per kilogram of dry matter produced.
• Sorghum ($C_4$): Possesses exceptional water use efficiency, requiring only $\approx 250\text{ kg water/kg dry matter}$ $\implies$ (A) $\rightarrow$ (III).
• Maize ($C_4$): Moderately efficient $C_4$ cereal with a ratio of $\approx 350$ $\implies$ (D) $\rightarrow$ (IV).
• Wheat ($C_3$): Standard temperate $C_3$ cereal with higher photorespiration, ratio $\approx 500$ $\implies$ (B) $\rightarrow$ (I).
• Potatoes ($C_3$): Succulent tuber crop with high transpiration ratio $\approx 650$ $\implies$ (C) $\rightarrow$ (II).
• Conclusion: (A) - (III), (B) - (I), (C) - (II), (D) - (IV) (Option 4).

Correct option: (4) (A) - (II), (B) - (), (C) - (I), (D) - (IV)