A blueberry grown in Australia has been recognized by Guinness World Records as the heaviest in the world. The golf-ball-sized berry, picked on Nov. 13 at a farm run by Costa Group in Corindi, Australia, came in at 20.4 grams, or 0.72 ounces, and measures more than an inch and a half across, about 10 times the size of an average blueberry.It easily surpassed the previous record holder, which also came from Australia and weighed 16.2 grams or 0.57 ounces.Senior horticulturist Brad Hocking said the team at Costa, which develops one or two new blueberry varieties a year through its variety…