Correct Answer - Option 3 : 0.9
The ratio of Evapotranspiration (Consumptive use) to the Pan evaporation is known as the consumptive use coefficient.
It is different for different crops and is different for the same crops in different places.
The different crops are divided into 8 groups:
The crops like wheat, barley, flax, and other small grains lie in Group D and the maximum value of Consumptive use coefficient for these crops is 0.90.
For crops like melons, onions carrots, and grapes lie in Group C, the maximum value of Consumptive use coefficient for these crops is 0.60.