Studies on morphological characters of induced autotetraploid som [Persea bombycina (King ex. Hook f.)] Kost genotypes

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S. N. Gogoi
Meghali Barua
R. Chakravorty

Abstract

Four autotetraploid som genotypes along with their respective diploid parents were studied for 24 qualitative and 24 quantitative characters to establish distinctness, uniformity and stability (DUS) of tetraploid genotypes. Among 24 qualitative traits, 14 traits were monomorphic, 7 were dimorphic and 3 were polymorphic indicating their potentiality for characterization of the genotypes. The expression of each character in all genotypes was similar for three consecutive years confirming the stability of traits. Leaf and floral traits were most reliable for identification of tetraploids. The four tetraploids were distinct from each other and also from their respective diploid parents. For further characterization and to meet DUS criteria for identification of som, study of some of the distinct morphological characters in coalition with molecular character analysis might be necessary.

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How to Cite
Gogoi, S. N., Barua, M., & Chakravorty, R. (2009). Studies on morphological characters of induced autotetraploid som [Persea bombycina (King ex. Hook f.)] Kost genotypes. INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 69(02), 145–151. https://doi.org/.
Section
Research Article