Genetic analysis of agronomic and biochemical variables among different tomato (Solanum lycopersicum L.) accessions
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Abstract
In the present study, thirty accessions of tomato were evaluated for estimation of correlation and path analysis among various quantitative and qualitative characters related to fruit yield. There were highly significant differences among the accessions for all the characters studied as per the analysis of variance. Genotypic correlation coefficients were generally similar in nature and higher in magnitude than the corresponding phenotypic correlation coefficients. The results revealed that the fruit yield plant-1 was significantly and positively correlated with number of fruits plant-1 (0.3119 and 0.3184) followed by fruit set percentage (0.2434 and 0.2499), fruit weight (0.6766 and 0.6731), polar diameter of fruit (0.4687 and 0.4635) at genotypic and phenotypic level, respectively, indicating that effective improvement in fruit yield plant-1 through these characters could be achieved. Fruit weight showed positive and significant genotypic and phenotypic correlation with fruit yield plant-1 by having greatest positive direct effect (1.1298 and 1.1116) on fruit yield plant-1 at both levels, indicating the true relationship between them and the feasibility to exploit the potentiality of this trait for effective direct selection to improve fruit yield plant-1.
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Keywords
Agronomical, Biochemical variables, Genetic association, Path analysis, Solanum lycopersicum
References
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Dewey, D.R. and Lu, K.H. (1959). A correlation and path analysis of the components of crested wheat grass seed production. Agronomy Journal, 51: 515-518.
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Giovannucci, E. (2002b). A review of epidemiologic studies of tomatoes, lycopene, and prostate cancer. Experimental Biology and Medicine, 227: 852-859.
Giovannucci, E., Rimm, E.B., Liu, Y., Stampfer, M.J. and Willett, W.C. (2002). A prospective study of tomato products, lycopene, and prostate cancer risk. Journal of the National Cancer Institute, 94: 391-398.
Golani, I.J., Mehta, D.R., Purohit, V.L., Pandya, H.M. and Kanzariya, M.V. (2007). Genetic variability, correlation and path coefficient studies in tomato. Indian Journal of Agricultural Research, 41(2): 146-149.
Grigolli, J.F.J., Kubota, M.M., Alves, D.P., Rodrigues, G.B., Cardoso, C.R., Silva, D.J.H. and Mizubuti, E.S.G. (2011). Characterization of tomato accessions for resistance to early blight. Crop Breeding and Applied Biotechnology, 11: 174-180.
Hallauer, A.R. and Miranda Filho, J.B. (1988). Quantitative genetics in maize breeding. Iowa State University Press, Ames, 468p.
Harer, P.N., Lad, D.B. and Bhor, T.J. (2002). Correlation and path analysis studies in tomato. Journal of Maharashtra Agricultural Universities, 27(3): 302-303.
Hartwig, I., Carvalho, F.I.F., Oliveira, A.C., Silva, J.A.G., Lorencetti, C., Benin, G., Vieira, E.A., Bertan, I., Silva, G.O., Valério, I.P., André, D. and Schmidt, M. (2007). Estimativa de coeficientes de correlação e trilha em gerações segregantes de trigo hexaplóide. Bragantia, 66: 203-218.
Haydar, A., Mandal, M.A., Ahmed, M.B., Hannan, M.M., Karim, R., Razvy, M.A., Roy, U.K. and Salahin, M. (2007). Studies on genetic variability and interrelation-ship among the different traits in tomato (L. esculentum Mill.). Middle-East Journal of Scientific Research, 2(3-4): 139-142.
He, C., Poysa, V. and Yu, K. (2003). Development and char-acterization of simple sequence repeat (SSR) markers and their use in determining relationship among Ly-copersicon esculentum cultivars. Theoretical and Ap-plied Genetics, 106: 363-373.
Hidayatullah, Jatoi, S.A., Ghafoor, A. and Mahmood, T. (2008). Path coefficient analysis of yield component in tomato (Lycopersicon esculentum). Pakistan Journal of Botany, 40(2): 627-635.
Indu Nair, P. (1995). Genetic variability in certain exotic collection of tomato (Lycopersicon esculentum Mill.). M.Sc. Thesis, Tamil Nadu Agricultural University, Coimbatore.
Islam, B.M.R., Ivy, N.A., Rasul, M.G. and Zakaria, M. (2010). Character association and path analysis of exotic tomato (Solanum lycopersicum L.) genotypes. Bangladesh Journal of Plant Breeding and Genetics, 23(1): 13-18.
Izge, A.U., Garba, Y.M. and Sodangi, I.A. (2012). Correla-tion and path coefficient analysis of tomato (Lycopersicon lycopersicum L. Karst) under fruit worm (Heliothis Zea Buddie) infestation in a line × tester. Journal of Environmental Issues and Agriculture in Developing Countries, 4(1): 24-30.
Jack, D.B. (1995). Keep taking the tomatoes-the exciting world of nutraceuticals. Molecular Medicine Today, 1: 118-121.
Jawaharlal, M. (1994). Genetic studies for fruit yield and quality characteristics in tomato (Lycopersicon esculen-tum Mill.). Ph.D. Thesis, Tamil Nadu Agricultural University, Coimbatore.
Joshi, G.C. and Choudhury, B. (1981). Screening of Lycopersicon and Solanum species for resistance to leaf curl virus. Vegetable Science, 8: 45-50.
Kaushik, S.K., Tomar, D.S. and Dixit, A.K. (2011). Genetics of fruit yield and it’s contributing characters in tomato (Solanum lycopersicum). Journal of Agricultural Biotechnology and Sustainable Development, 3(10): 209-213.
Kumar, M. and Dudi, B.S. (2011). Study of correlation for yield and quality characters in tomato (Lycopersicon esculentum Mill.). Electronic Journal of Plant Breed-ing, 2(3): 453-460
Kumar, R., Kumar, N., Singh, J. and Rai, G.K. (2006). Stud-ies on yield and quality traits in tomato. Vegetable Science, 33(2): 126-132.
Kumar, V.R.A., Thakur, M.C. and Hedau, N.K. (2003). Correlation and path coefficient analysis in tomato (Lycopersicon esculentum Mill.). Annals of Agricultural Research, 24(1): 175-177.
Kumari, S. and Sharma, M.K. (2013). Genetic variability studies in tomato (Solanum lycopersicum L.). Vegetable Science, 40(1): 83-86.
Liu, L.W., Wang, Y., Gong, Y.Q., Zhao, T.M., Liu, G., Li, X.Y. and Yu, F.M. (2007). Assessment of genetic purity of tomato (Lycopersicon esculentum L.) hybrid using molecular markers. Scientia Horticulturae, 115: 7-12.
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How to Cite
Genetic analysis of agronomic and biochemical variables among different tomato (Solanum lycopersicum L.) accessions. (2015). Journal of Applied and Natural Science, 7(2), 806-816. https://doi.org/10.31018/jans.v7i2.687
