I. K. Thakur ¹, Sapna Thakur ¹, N. B. Singh ¹, R. K. Gupta ¹, J. P. Sharma ¹, M. Sankanur ¹

Affiliations
1 Department of Tree Improvement and Genetic Resources, COF, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan- 173 230, H.P., IN

Abstract

The present study on Ulmus villosa was carried out in Himachal Pradesh to know the progeny performance and estimate genetic variability for biomass traits of progenies at nursery stage. Seeds were collected from five mother trees each at six seed sources and progenies were raised. All the biomass characters varied significantly among different seed sources and trees within seed source. Root dry weight was found to have higher coefficient of variability, whereas shoot dry weight and shoot fresh weight had higher heritability with moderate genetic gain suggesting their importance for the success of improvement through selection. Genotypic and phenotypic correlations for all possible pairs were also found out and discussed. Highly significant and positive genotypic and phenotypic correlations were observed for fresh shoot weight with fresh ischolar_main weight and fresh shoot weight with dry shoot weight indicating their significance in the indirect selection.

Keywords

Seed Source, Genetic Variability, Progeny, Biomass Traits, Correlation, Phenotypic, And Genotypic Correlations

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Sapna Thakur ¹, I. K. Thakur ¹, N. B. Singh ¹, J. P. Sharma ¹, M. Sankanur ¹

Affiliations
1 Department of Tree Improvement and Genetic Resources, College of forestry Dr. Y.s. Parmar University of Horticulture and forestry, Nauni, Solan- 173 230 Himachal Pradesh, India, IN

Abstract

Molecular diversity among 23 promising progenies of Ulmus villosa, which were raised from the seeds collected from various seed sources in Himachal Pradesh (India), was estimated using 10 RAPD primers. A total of 57 markers were generated, all of the 10 primers showed 100 per cent polymorphism. The similarity coefficient among 23 progenies of U. villosa ranged from 0.00 to 0.70. In which, progeny Jugahan-T<SUB>3</SUB> was found to be the most divergent which separated 3 itself from rest of the progenies at similarity value (0.04) and could be used as a parent in hybridization programme and further improvement programmes. The progenies were grouped into 4 clusters. The cluster II consisted maximum of 12 progenies followed by cluster III (5 progenies), cluster IV (4 progenies) whereas cluster I consisted of single progeny. RAPD analysis proved helpful for estimating the magnitude of genetic diversity at molecular level.

Keywords

RAPD, Ulmus villosa, Progenies, Genetic Diversity.

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