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Karyotype analysis of Stevia rebaudiana Bertoni variety SRB-512

Rukhshana Parveen & Kamini Kumar
Department of Botany, Ranchi University, Ranchi (Jharkhand), India
Received .7th June, 2011  Revised 25th August, 2011.

Abstract : Stevia rebaudiana Bertoni, the most valuable tropical medicinal plant, belongs to the family Asteraceae. Stevia rebaudiana Bertoni var. SRB – 512 was selected for the koryo-morphological studies. Karyotype of variety SRB-512 was studied, utilizing root tip metaphases. The variety was diploid with 2n=22 chromosomes. Eleven pairs of chromosomes were recorded. The chromosomes were nearly median and nearly submedian type.


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