Correlation and path analysis in recombinant inbred lines (RILs) of wheat (Trticum aestivum L.)
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Abstract
Correlation and path coefficient analysis were studied in 22 heat tolerant Recombinant Inbred Lines (RILs) of wheat. Analysis of variance revealed the significant difference among genotypes for all the characters. Suggested that there was ample scope for selection of promising RILs for yield improvement. A wide range of variability was exhibited by most of the traits. The results of correlation studies indicated that genotypic correlation coefficients were higher in magnitude than their corresponding phenotypic correlation coefficients for all the traits which indicated that association among these characters was under genetic control and indicating the preponderance of genetic variance in expression of characters. Grain yield per plant had high, significant and positive association with number of grains per spike, spike weight, spike length, canopy temperature depression, tillers per plant, grain filling period and chlorophyll content both at genotypic and phenotypic levels indicating that these traits were main yield attributing traits. Path analysis revealed that grains per spike, tillers per plant, spike length, had the highest positive direct effect on grain yield followed by flag leaf length, flag leaf width, days 50% heading, plant height, grain filling period, membrane stability and days to maturity at genotypic level. The selection of characters such as grains per spike, tillers per plant, spike length and spike weight would be helpful for further improvement in RILs of wheat.
Article Details
Article Details
Correlation, Path analysis, Recombinant inbred line (RIL), Triticum aestivum, Wheat
Ajmal, S., Zakir, N. and Mujahid, M.Y. (2009). Estimation of genetic parameters and character association in wheat. J. Agric and Biol. Sci., 1(1):15-18.
Al-Jibouri, H.A., Miller, A.R. and Robinson, H.F. (1958). Genotypic and environmental variances and co-variances in upland cotton crosses of interspecific origin. Agron. J., 50: 633-637.
Bhushan, B., Bharti, S., Ojha, A., Pandey, M., Gourav, S.S., Tyagi, B.S. and Singh, G. (2013). Genetic variability, correlation coefficient and path analysis of some quanti-tative traits in bread wheat. J. Wheat Res., 5(1): 21-26.
Burton and Devane (1953). Estimating heritability all rescues from replicated clonal material. J. Agron., 45: 474-481.
Burton, G.W. (1952). Quantitative inheritance of grasses. Proc. 6th International Grassland congress, 1:277-283.
Dewey, D.R. and Lu, K.H. (1959). A correlation and path coefficient analysis of components of wheat grass seed production. Agron. J., 51: 515-518.
Farzamipour, R., Moghaddam, M., Aharizad, S. and Rashidi. (2013). Genetic variation for agronomic characters and drought tolerance among the recombi-nant inbred lines of wheat from the Norstar x Zagross cross, Intenational J. Biosci., 3(8):76-86.
Grafius, J.S. (1959). Hetrosis in barley. J. Agron., 51:551-554.
Gupta, S.K. and Verma, S.R. ( 2000). Variability, heritability and genetic advance under normal and rainfed condition in durum wheat (Triticum durum DESF) Indian. J. Ag-ric. Res., 34(2): 122-125.
Johnson, H.W., Robison, H.F. and Comstock, R.E. (1955). Estimates of genetic and environmental variability in wheat. Agronomy Journal, 47: 314-318.
Hanchinal, R.R., Maled, B.G., Naiak, V.R. and Patil, B.N. (1997). Genetic variability and heritability in emmer wheat. Journal of Maharashtra Agricultural Universi-ties, 22(1): 88-90.
Khan, A.J., Azam, F. and Ali, A. (2010). Relationship of morphological traits and grain yield in recombinant inbred wheat lines grown under drought conditions. Pakistan Journal of Botany, 42(1):259-267.
Lush, J.L. (1949). Heritability of quantitative traits in farm animals. Proceeding of 8th international congress ge-netic Heridos (supplementary), 336-357.
Mahaptara, R.N., Yadava, M.S. and Mohan, K.S. (2008). Genetic variation, character association in rainfed wheat. Indian Journal of Dryland Agricultural Research and Development, 18(2): 196-198.
Mukherjee, Subhra., Gupta, Suparna. and Bhowmik, N. (2008). Genetic variability of important quantitative characters in modern wheat (Triticum aestivum L.) cultivars in Tarai Region of West Bengal. Environ and Ecol, 26 (2): 683-686.
Narjesi, V., Hervan, E.M., Zali, A.A., Mardi, M. and Na-ghavi, M.R. (2010). Effect of salinity stress on grain yield and plant characteristics in bread wheat recombi-nant inbred lines. Iranian J. Crop Sci. 12(3):291-304
Paroda, R.S. and Joshi, A.B. (1970). Correlation, path coeffi-cient and their implication in discriminant function for selection in wheat (Triticum aestivum L.). Heredity 25: 383-392.
Panwar, B.S. and Singh, D. (2000). Genetic variability and correlation studies in wheat (Triticum aestivum L.). Indian Journal of Plant Genetic Resources. 13(3): 286-289.
Rangare, N.R., Krupakar, A., Kumar, A. and Singh, S. (2010). Character association and component analysis in wheat. Electron. J. Plant Breed.,1(3): 231-238.
Shindo, D., Mingeot, J.M. and Jacquemin. (2002). Quantita-tive trait loci for resistance against Yellow rust in two wheat-derived recombinant inbred line populations. Theory of Applied Genetics. 104:111–118.
Thanki, H.P. Sawargaonkar, S.L. and Hudge, B.V. (2010).
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