Effect of Fertilizers on Growth, Yield and Quality of Embryo-cultured Sap Coconuts (Cocos nucifera var. sap)

Background: The study was carried out to assess how different fertilizers and their application cycles affected the development and productivity of coconut trees grown in embryos. Methods: The experiment was conducted in an entirely randomized manner with five treatments performed continuously for three years on sap coconut at 5-year-old embryo-cultured trees in Tra Vinh province, Vietnam. Result: It was observed that 7-year-old embryo-cultured sap coconuts did not change in size and girth. The number of newly formed leaves ranged from 24.7 to 25.3 leaves/tree/year. The average number of newly formed inflorescences ranged from 16.1 to 18.5 inflorescences/tree/year. Fertilizers and their application time did not affect the fruits/bunch on embryo-cultured sap coconut trees. Fertilization of embryo-cultured sap coconut trees over 5 years old with 118 N-42 P2O5-54 K2O once a month recorded 72.3-93 fruits/tree/year and 7-year-old embryo-cultured sap coconuts recorded wax fruits/bunch ratio of 94-96%.