new delhi, April 10 -- At a time when the government is trying to tame food inflation, a spike in prices of key winter (Rabi) crops such as gram, paddy and maize is expected to play spoilsport. Agriculture analysts expect these crops to be hit by depleting water reservoir levels, above-normal temperatures and diseases, especially in Karnataka, Andhra Pradesh, Telangana, and Tamil Nadu. However, prices of other rabi crops such as wheat and mustard are not expected to rise....