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THE EFFECT OF DIFFERENT HEALTHY SEEDS AND VIRUSES SYMPTOMS ON GROWTH AND RESULTS OF SHALLOT 1) Research Center for Horticultural and Estate Crops Abstract Shallots are always propagated vegetatively so that the virus can develop and accumulate in the tubers and eventually carry over to the seeds. The aim of the study was to determine the growth and yield of shallots from healthy and virus-infected seeds. The research was carried out in the experimental garden of IVEGRI Lembang (1250 above sea level). The implementation time is from September to December 2021. The experimental design used is a Factorial Randomized Block Design with two factors repeated twice. The first factor is the onion variety: V1 = Violetta-1. V2 = Violetta-2. V3 = Violetta-3. V4 = Ambassador-1. V5= Ambassador-2. V6= Ambassador-3. V7= Ambassador-4. V8= Maja Cipanas. V9 = Pancasona. V10= Sembrani. V11= Kramat-1. Second factor: B0=Seeds are suspected to be healthy. B1= Seed infected with virus. The results showed that: (1). The incidence and intensity of viral disease from healthy tubers and virus infected tubers were not significantly different. (2). There was no interaction between varieties, from healthy tubers and virus infection. (3). The growth and yield of shallots from healthy bulbs was relatively higher than bulbs infected with the virus. (4). Elisa test results on leaf samples detected the presence of OYDV (Onion Yellow Dwarf Virus) and SYSV (Shallot Yellow Stripe Virus), GCLV (Garlic Common Latent Virus), and SLV (Shallot Latent Virus) viruses. based on the DAS-ELISA (Double Antibody Sandwich-Ezyme Linked Immunosorbent Assay) test. Keywords: Allium cepa var.ascalonicum- Seeds- Varieties- Virus Topic: Integrated pest and disease management |
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