Melbourne: Petra Kvitova, Maria Sharapova and Novak Djokovic ensured they spent as little time as possible in the Melbourne heat on Tuesday with lopsided first round victories at the Australian Open.   

Temperatures in Melbourne soared for the second successive day, with Kvitova playing the first match on Rod Laver Arena in temperatures exceeding 30 degrees Celsius before midday.    

Monday's opening day experienced temperatures over 33 Celsius, and it is expected to hit 35 Celsius later on Tuesday before cooler weather is expected for the rest of the week.   

World number two Kvitova, who beat Sharapova last year at Wimbledon to claim her first grand slam title, was unruffled by the conditions in a ruthlessly efficient 6-2 6-0 victory over Vera Dushevina taking a tick over one hour.   

"I think outside it's much worse when they play on the open court, so I'm happy that I played on Rod Laver," Kvitova said.   

"I know today it will be very warm. I'm happy that I played already in the morning. It wasn't too bad."   

Fourth seed Sharapova, however, was as merciless on the second show court on Hisense Arena, beating Argentina's Gisela Dulko 6-0 6-1 in 58 minutes.   

Sharapova had looked like inflicting the third 'double bagel' (6-0 6-0 win) of the tournament in two years before Dulko broke her serve in the third game of the second set, to a massive cheer and sustained applause.   

Kim Clijsters and Martion Bartoli recorded 6-0 6-0 victories over Dinara Safina and Italy's Tathiana Garbin respectively last year at Melbourne Park.   

Sharapova, however, was only temporarily stalled in her advance and while Dulko held three break points when Sharapova was serving for the match, the three-times grand slam champion swatted them away and marched into the second round.   

Djokovic Run   

Djokovic's victory in Melbourne last year sparked a remarkable 12 months in which he won three grand slam titles and compiled a 70-6 record as he finally overhauled Rafa Nadal and Roger Federer as the best player in men's tennis.   

The Serb began his title defence in style at the year's first grand slam tournament with an emphatic 6-2 6-0 6-0 victory over Italian journeyman Paolo Lorenzi.   

He had stumbled early with a break to trail 2-1, but rattled off 17 successive games to seal the match in 92 minutes.     

Fifth seed Ferrer, a beaten semi-finalist here last year and champion in Auckland last week, also spent as little time in the blazing sunshine as possible.   

The Spaniard took just one hour 44 minutes to blitz Portugal's Rui Machado 6-1 6-4 6-2 and progress to the second round.     

Men's world number four Andy Murray was playing American teenager Ryan Harrison on Hisense Arena, while five-times women's champion Serena Williams will play the final match on Rod Laver Arena later on Tuesday.