Growing Degree Day Targets for Fruit Development of Australian Mango Cultivars

A forward estimate of mango (Mangifera indica L.) harvest timing is required for farm management (e.g., organization labour and marketing). This can be based on accumulated growing degree days (GDD) from an early stage flowering to fruit maturity, with maturity judged a destructive assessment flesh colour dry matter content. The current study was undertaken improve GDD targets Australian cultivars, estimation document methodology recommended future work characterizing maturation other cultivars. An alternate algorithm calculation involving use function that penalizes high temperatures as well low demonstrated better predict in warmer climates. Across multiple locations seasons, the heat units (GDD, Tb = 12 °C, TB 32 °C; where upper base temperature °C lower °C) achieve asparagus documented 2185, 1728, 1740 cultivars Keitt, Calypso Honey Gold, respectively. difference between two-thirds floral opening stages 188 ± 18 Calypso, 184 238 21 Keitt 175 10 KP. Colour specifications card set suitable all also proposed. specification 9 proposed cultivar Gold 13 Keitt.