The nearly 1,000 cranberry and grapefruit growers who own Ocean Spray yesterday rejected by an overwhelming majority of votes a push by some of its members to move toward a sale of the company. Growers attending or sending proxies to the Cooperative's 70th annual meeting voted 2 to 1 in opposition to a resolution calling on their board of directors to instruct management to explore a possible sale of Ocean Spray, the nation's number-one brand of canned and bottled juice drinks.