After a brief respite, the dense fog, severe cold wave and ground frost conditions are expected to return to North and North-West India over the next four-five days. While the weather conditions had raised concerns over the standing wheat crop, the cereal may hold its own against the onslaught of a persisting fog and ground frost. The prevailing foggy and frost conditions in parts of North India are unlikely to have any impact on the upcoming rabi wheat crop, according to agricultural scientists. The current weather condition is seen to be conducive for the wheat crop, which is still in vegetative stages. Had the crop reached the flowering stage, this weather could have had some impact,” said Gyanendra Pratap Singh, Director of the Karnal-based Indian Institute of Wheat and Barley Research (IIWBR). Singh said the country is headed for a bumper wheat harvest this year and the crop size could exceed 100 million tonnes, mainly on favourable weather conditions.