Estimation of genetic parameters for quantitative traits in pansy (Viola × wittrockiana)

RAVNEET KAUR; K K DHATT

doi:10.56093/ijas.v90i4.102235

Authors

RAVNEET KAUR Punjab Agricultural University, Ludhiana, Punjab 141 004, India
K K DHATT Punjab Agricultural University, Ludhiana, Punjab 141 004, India

https://doi.org/10.56093/ijas.v90i4.102235

Keywords:

Genetic advance, Heritability, Pansy, Variability

Abstract

Genetic parameters of variability, heritability and genetic advance were evaluated to ascertain for various vegetative and floral characters in 36 genotypes (eight parents and its 28 F1's) of pansy. The highest coefficient of variation was observed in pod setting (8.82%) and lowest for flowering duration (2.08%). PCV was higher in magnitude with narrow differences than the GCV for all the characters studied. High PCV and GCV were observed for flower number followed by branch count, days from bud initiation to flowering, days to flowering and final plant height. High estimates of heritability were acquired for all traits. The traits flower number, branch count and days from bud initiation to flowering manifested high heritability (>80%) along with high genetic advance as % mean (>60%) indicating additive gene action in expression of these traits. So, further improvement in these traits could be brought by rehearse phenotypic selection.

Downloads

Download data is not yet available.

References

Burton G W and De Vane E M. 1953. Estimating heritability in tall fescue (Festuca arundinancea) from replicated clonal material. Journal of Agronomy 45: 478–81. DOI: https://doi.org/10.2134/agronj1953.00021962004500100005x

Dalbato A L, Kobza F and Karlsson L M. 2013. Effect of polyploidy and pollination methods on capsule and seed set of pansies (Viola × wittrockiana Gams). Horticultural Science 40: 22–30. DOI: https://doi.org/10.17221/51/2012-HORTSCI

Hedge P S and Gopinath G. 2003. Genetic variability, heritability and genetic advance in Gaillardia pulchella. Journal of Ornamental Horticulture 6: 277–80.

Johnson H W, Robinson H F and Comstock R E. 1955. Estimates of genetic and environmental variability in soyabean. Journal of Agronomy 47: 314–8. DOI: https://doi.org/10.2134/agronj1955.00021962004700070009x

Lush J L. 1940. Inter – sire correlation and regression of offspring on damasasa method of estimating heritability characters. Proceeding of American Society Animal Production 33: 293–301.

Panse V G and Shukhatme P V. 1969. Statistical Methods for Agricultural Workers. ICAR, New Delhi, India

Singh K P and Saha T N. 2009. Character association and path analysis studies in French marigold. Annals of Horticulture 2: 39–42

Singh D and Sen N L. 2000. Genetic variability, heritability and genetic advance in marigold. Journal of Ornamental Horticulture 3: 75–8.

Singh A K and Singh D. 2010. Genetic variability, heritability and genetic advance in African marigold. Indian Journal of Horticulture 67: 132–6.

Singh D, Singh A K, Tiwari J P and Singh Y V. 2004. Growth and flowering characteristics of Tagetes patula and Tagetes minuta as influenced by germplasm. Progressive Horticulture 36: 221–4.

Verma S, Kumar S and Singh D. 2008. Studies on variability for various quantitative traits in rose (Rosa spp.). Journal of Ornamental Horticulture 11: 62–5.

Verma S K, Arya R R and Singh R K. 2004. Variability studies on some quantitative characters in dahlia (Dahlia variabillis). Scientific Horticulture 9: 201–5.

Yuvraj and Dhatt K K. 2014. Studies on genetic variability, heritability and genetic advance in marigold. Indian Journal of Horticulture 71: 592–4.