Ekta Rana and Harmanpreet Kaur, dwindled New Zealand batting order by scalping two each.
McCullum will sit out from next month’s limited overs tour of Zimbabwe and South Africa, citing a busy schedule.
Root scored 68 runs off 46 balls, including eight fours and a six as England won by 56 runs.
In a rain-affected game, Bairstow’s classy knock of 81* helped England chase down a revised total of 192 from 26 overs.
The New Zealand coach feels that the series against England has been a good learning experience for his team.
Morgan (113), Root (106*) after Hales opening blitz help England chase record target with 6 overs to spare.
NZ chase down England’s 302 after Taylor (118) and Williamson (110) stitched together 206-run stand.
Trent Boult took 13 wickets at the rate of 24.84 in the Test against England.
England showed resilience in face of a daunting total but in the end the Duckworth-Lewis method put it beyond their reach.
The Three Lions thrashed New Zealand by a whooping 210 runs on Tuesday.
Riding on Buttler & Root’s quick-fire tons as England posted 400 plus total for the first time in ODIs; beat NZ by 210 runs.
After an early World Cup exit, eyes will be on England to start off this year’s ODI Campaign well.
Appointed in an interim role following the departure of Bond in April, Mascarenhas had been retained on a two-year contract.
The hosts, chasing a record 455 to win, were bowled out for 255 on the final day.
New Zealand had declared their second innings on 454 for eight after an entertaining morning session.