Effect of NPK Fertilizer on Nutrient Uptake, Growth, Yield and Beta-carotene of Cutleaf Groundcherry (Physalis angulata L.) of Genotypes

Abstract

Background: Cutleaf groundcherry (Physalis angulata L.) has vitamins that are good for health. There were several genotypes of cutleaf groundcherry that have the potential to be widely cultivation, but information of doses of NPK fertilizer for those genotypeswas still limited. The objective of this experiment was to determine the response of cutleaf groundcherry to different rates of NPKfertilizer.Methods: The experiment was conducted May-September 2019 in dry land field. The experiment used a factorial randomized blockdesign with three replications. The first factor was genotypes cutleaf groundcherry (PA 01, PA 02 and PA 03) and the second factorwas doses of NPK fertilizer (75, 150 and 225 kg ha-1 NPK).Conclusion: The increased in doses of NPK fertilizer to 225 kg ha-1 NPK increased nutrient uptake, plant growth and fresh fruitweight for each genotype of cutleaf groundcherry. Meanwhile ascorbic acid content increased with a dose of 150 kg ha-1 NPK, butdecreased with increased NPK fertilizer rates. The beta-carotene content with 75 kg ha-1 NPK fertilizer was higher than with 150 and225 kg ha-1 doses. The increase of NPK fertilizer doses otherwise decreases the beta-carotene content for each genotype. Shoot dryweight, fresh fruits weight and ascorbic acid in PA 03 genotype higher than PA 01 and PA 02 genotypes