MILAN, Italy (AP) _ World production of kiwi, an egg-sized subtropical fruit, is expected to almost treble by 1990, with New Zealand likely to produce a half of that, it was announced here Tuesday.

Charles Barkla, an official of New Zealand's Kiwifruit Authority, told a news conference that kiwis production would amount to 884,000 metric tons by 1990.

World production totaled 362,000 metric tons in 1987 with New Zealand accounting for 189,000 tons. Italy was the second largest world producer with 80,000 tons, ahead of Japan and the United States, which had 33,000 tons and 24,000 tons respectively.