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VOL. 6, ISSUE 3 (2021)
Characterization of morphological diversity in teak (Tectona Grandis L.F.) germplasm in India for preparation and implementation of dus testing (Distinct, Uniform and Stable)
Authors
Vinothkumar A, Anantha Lakshmi M, Chandrasekar R, Sivakumar V, Manokaran P, Amzad Basha Kolar
Abstract
The present study was carried out to identify the phenotypic variability among available Tectona grandis (Teak) germplasm in India for generating DUS descriptors phonetically for better scheming of their genetic inheritance and to prove the Distinct, Uniform and Stability (DUS) testing guidelines through Numerical Taxonomy. Grouping and Identification are the two main aims of the Numerical Taxonomy. Among 112 accessions/germplasm of “all India Teak clones” (based on aerial plant parts), a set of morphological descriptors were identified and grouping was done with the aid of statistical tools. ‘Grouping' are those, which are known from experience not to vary, or to vary only to a lesser extent, within a clone, can be used to discriminate the germplasms for DUS testing into different groups to facilitate the examination of Distinctiveness. As per the present study 18 out of 36 characteristics states were dimorphic (Presence of two states), while 13 were Trimorphic and the remaining 6 were polymorphic characters (including both quantitative and qualitative phenotypic traits). The accessions were significantly variable in all traits. The highest variability among accessions was found in leaf traits. It was difficult to identify all the cultivars based on a single morphological trait so a combination of different traits makes the clones distinct among all.
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Pages:527-533
How to cite this article:
Vinothkumar A, Anantha Lakshmi M, Chandrasekar R, Sivakumar V, Manokaran P, Amzad Basha Kolar "Characterization of morphological diversity in teak (<em>Tectona Grandis </em>L.F.) germplasm in India for preparation and implementation of dus testing (Distinct, Uniform and Stable) ". International Journal of Botany Studies, Vol 6, Issue 3, 2021, Pages 527-533
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