Sydney, March 5 NZPA - Northern Districts' batsman Kane Williamson produced another reminder of his undoubted talent against Wellington at the Basin Reserve today, a career-best 170 pivotal in solidifying the Plunket Shield leaders position of dominance.

The 19-year-old's third first class century enabled Northern to bank first innings points and pull well clear of Wellington's 193.

The visitors were eventually dismissed for 400 in the middle session, by stumps on day two Wellington had almost halved their 207-run first innings deficit.

The hosts were 101 for two at the close with Neal Parlane to resume on 51 and Luke Woodcock 13.

Williamson guaranteed his bowlers' sterling efforts yesterday were not in vain as he stylishly continued on from his overnight score of 74.

The right-hander's century illuminated the Northern scorecard with opener Michael Parlane's 59 the only other significant contribution.

The pair reprised their 139 run stand for the second wicket, though only briefly as Parlane exited six runs later.

Williamson then shared middling stands with Hamish Marshall (33) and Daniel Flynn (32) while surpassing his previous highest score of 111 against Auckland 12 months ago.

He brought up his hundred from 136 balls, needing just 54 to deliveries to double his score. All up he cracked 24 boundaries in a high quality innings that spanned 223 balls and almost six hours.

Wicketkeeper Peter McGlashan (43) and Graeme Aldridge (31) continued to torment Wellington attack once Williamson became the fourth of Chris Nevin's five catches at the wicket.