Genetic analysis of yield attributing traits and protein content in pea using modified TTC design
DOI:
https://doi.org/10.53550/jfl.v19i2.2221Keywords:
Degree of dominance, Genetic variances, Modified, TTC (MTTC), PeaAbstract
The study was carried out over two years using modified triple test cross (TCC) design in order to estimate the nature and magnitude of genetic variation for various quantitative traits and protein content in pea. The estimates of additive genetic variance (D) obtained by variances of sums of L1+ L, and L1,+ L+L, were found to be comparable for most of the characters. Partial dominance was predominant for days to maturity, test weight, seed yield and protein content. Plant height exhibited complete to over-dominance, suggesting greater role of dominance gene effect in its inheritance. Narrow sense heritability was high for days to 50% flowering, test weight and protein content. Correlation coefficient between sums and differences were non-significant for all the characters.
References
Hanson, W.D. 1959. The break-up of initial linkage block under selected mating system. Genetics 44: 857-868.
Kearsey, M.J. and Jinks, J.L. 1968. A gencral method of detecting additive, dominance and cpistatic variation for metrical traits I Theory. Heredity 23: 403-409.
Gilmore, E.C. Jr. 1964. Suggested method of using reciprocal recurrent selection in some naturally self-pollinated specics. Crop Science 4: 323-325.
Pooni, H.S., Jinks, J.L. and Pooni, G.S. 1980. A general method for the detection and estimation of additive, dominance and epistatic variation for metrical traits. IV. Triple test cross analysis for normal families and their self. Heredity 44: 177-192. Pooni, H.S. and Jinks, J.L. 1979. Sources and biases of the predictors of the properties of recombinant inbred lines produced by single seed descent. Heredity 42: 41-48.
Narayan, R., Rastogi, K.B., Bhardwaj, V. and Kanaujia, S.P. 2001. Inheritance of yield and quality traits in garden pea (Pisum sativum var. hortense L.). Advances in Horticulture Forest 8: 139-144.
Virk, D.S., Multani, D.S., Virk, P.S., Verma, M.M. and Singh, N.B. 1986, T.T.C analysis of F, and irradiated F, derived lines of Pisum sativum L. Canadian Journal of Genetics and Cytology 28: 732-734.




