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Baene, Anusafati
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Agriculture, Biological Sciences & Forestry

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Journal : Jurnal Agroplasma

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Efektivitas Ekstrak Kunyit (Curcuma longa L.) dan Pupuk NPK Terhadap Insidensi Penyakit Virus Keriting Kuning Pada Cabai Rawit (Capsicum frutescens L.) Baene, Anusafati; Harahap, Rahmaniah; Harahap, Lutfi Henderlan
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.7812

Abstract

Yellow leaf curl virus infection in chili pepper (Capsicum frutescens L.) can significantly reduce crop yield. This study aimed to evaluate the effect of turmeric extract and NPK fertilizer doses on the incidence of yellow leaf curl virus in chili pepper plants. The research was conducted at the experimental field of Universitas Pembinaan Masyarakat Indonesia from June to August 2025 using a factorial Randomized Complete Block Design (RCBD) with two factors: turmeric extract (0%, 10%, 15%, 20%) and NPK dosage (0, 3.3 g, 5 g, 6.6 g per plant), resulting in 16 treatment combinations. Disease incidence was observed from 2 to 9 weeks after transplanting. The results showed that the highest incidence occurred at weeks 3 and 8. The K3P0 treatment (high-dose turmeric without NPK) resulted in the lowest incidence rate at 11.2%, while K1P3 (low-dose turmeric + high NPK) showed the highest at 137.5%. Although ANOVA results revealed no statistically significant differences (p>0.05), descriptively, high-dose turmeric treatments reduced symptoms and spread of disease. These findings highlight turmeric's potential as an eco-friendly botanical agent for managing viral diseases in chili cultivation. Keywords: chili pepper, disease incidence, NPK, turmeric, yellow leaf curl virus 
Co-Authors Harahap, Rahmaniah Lutfi Henderlan Harahap