<![CDATA[ABSTRACTSeed of red chilli plants has been induced with different consentrations of cholchisine 0,01%, 0,025% dan 0,05% in 24 hours incubation. The best consentration of cholchisine to induce these plants from diploid to poliploid was 0.025%. With this treatment root tip was dwelling, 90,82% in red chilli plants. Chromosomal microscope preparation of root tip dwelling showed tertaraploid chromosome which indicate tetrapolid character. The tetraploid plants show different morphology character comparing with diploid plants. The tetraploid plants are shorter, stems diameter are bigger, leaves size are wider and corollas are longer but flowering slower than diploid plants. Chromosome of anther buds was also showed tetraploidi, 95,83% in red chilli.Keywords: cholchisine, ploidy level, phenotype, red chilli plants]]>
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