GOVERNOR-GENERAL Quentin Bryce has advocated the introduction of quotas to ensure more women are appointed as directors on the boards of Australian companies.

In comments that could reignite claims that she has crossed the line between her vice-regal role and politics, Ms Bryce said she believed affirmative action might be the only way to break the stranglehold of the ''old boys' network'' on Australian business.

Quentin Bryce: "I believe that in certain circumstances quotas are a valid measure." Credit:Alex Ellinghausen

''I believe the old boys' network is a powerful one,'' she said. ''No one gives up power and privilege willingly, do they?''

Senior Labor and Liberal figures last night backed her view. Shadow treasurer Joe Hockey said the failure of big business to appoint women directors had reached the point where Parliament should consider ''punitive measures'' to force change.