Green, 22, is seven under after two rounds at the Australian Open in Adelaide, three shots adrift of Taiwanese leader Wei-Ling Hsu.

The emerging star carded a three-under 69 at The Grange Golf Club on Friday, following her opening round 68.

Green tied for seventh at the 2017 open and finished third last year when embracing home-nation crowd support.

"I had a mob screaming 'Greeny' (last year) and that actually settled my nerves surprisingly, so hopefully they can come out again," Green said.

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"Hopefully on Sunday again I can be in that position ... because I'm playing at home and the crowd are rooting for the Australians, it's nice to have that.

"Some people, it might make them more nervous. But it kind of settles me to know that everyone is rooting for me."

If she claims the open crown, Green will be four years younger than compatriots Karrie Webb and Jan Stephenson when they first won the national title.

The only other Australian to win the women's open is Jane Crafter.

Five-time winner Webb has birdied her first hole on Friday to move to six under.

And the second round's big mover has been Nelly Korda, the daughter of former Australian Open tennis champion Petr Korda.

RIGHT: Korda shot six-under 66 to move into second place midway through the second round of the Women’s Australian Open. PHOTO: Mark Brake/Getty Images.

Korda shot six-under 66 on Friday to join Green in second spot behind Hsu, who followed her opening 65 with a three-under second round.

The 20-year-old Korda carded seven birdies in a 10-hole streak.

"It was a lot of fun. I got off to a really solid start and just kept it going," she said.

Former World No.1 Lydia Ko is set to miss the cut – she's four over after a scrappy second round of 77.

But World No.1 Ariya Jutanugarn has rallied – after shooting four over on Thursday, she posted three under on Friday.

- Steve Larkin, Australian Associated Press