22EARLY MATURING SWEET POTATO VARIETIES FOR HIGH ALTITUDE HIGHLANDSNARI has recommended 12 sweet potato varieties which can produce between 4 – 9 tonnes per hectare (marketable yield) at 6 months for the High Altitude Highlands Areas (more than 2,000 metres above sea level) of PNG. This is an improvement because traditional varieties take 9 -12 months to mature. The selection of these early maturing varieties provides an assurance for food security especially after frost events which occur frequently in these areas.nullnullnullnullnullnull