Performance of the ‘Anna’ apple (Malus domestica Borkh.) in Tropical Highlands: A review

The 'Anna' apple is a variety of low requirements winter chill (250 to 300 chilling hours ≤7.2°C). This has essential health benefits and remarkable adaptive potential in tropical subtropical areas affected by climate change. Thus, this review presents the significance cultivation, phenological eco-physiological modifications, current state agronomic management when continuous crops are managed highlands. production highlands outstanding obtain cyclical or harvests (two per year) certain with specific environmental conditions, implementing particular system. In plantations, it crucial carry out some practices during reproductive phenology so that tree does not enter into an endodormancy. These water stress - defoliation – tie-down branches, application dormancy-breaking agents (flower-inducing compounds). Colombia, ‘Anna’ was introduced 1985 grown temperatures between 14 20°C, altitudes 1700 2800 meters above sea level (m a.s.l.), bimodal monomodal rain regimes, solar brightness 800 2000 year. harvest 100 120 days after anthesis, firmness values 38.38N, soluble solids content 8.58°Brix, total titratable acidity 0.7% fruit. documentation indicates good great terms growth development, earliness, quality Colombian