Analysis of shallot growth with boron and benzyl amino purine (BAP) application in Central Bangka Regency

Abstract The cultivation of shallots in Bangka Island has been regularly carried out by farmers in Central Bangka Regency in recent years. However, the amount of production and productivity achieved has not met the demand for shallots in the area. The Bangka Islands region is generally surrounded by critical land due to mining activities that have a significant impact on soil fertility. The addition of cytokinins as growth regulators in the form of Benzyl amino purine (BAP) and the micronutrient boron has been reported to enhance the production and productivity of shallots. The aim of this research is to determine the appropriate concentration of BAP and the required dosage of boron to enhance the yield and productivity of shallot in Bangka Island, specifically the bima brebes and bauji varieties. The research results indicate that there is an interaction in the treatment combinations regarding plant height parameters in both varieties. The addition of BAP at 100 ppm affects the height of the Bima Brebes variety. The application of boron at various doses does not influence the vegetative growth of the shallot plants of the Bima Brebes and Bauji varieties.