Genetic variability and heritability of yield and its components by wheat (Triticum aestivum L.)
Keywords:
genetic variability; heritability; wheat; yieldAbstract
Six F2 hybrid populations, including 7 varieties of common wheat (Triticum aestivum L.) were studied for genetic variability, heritability and genetic advance of yield and its components during the period 2009/2010. Heritability in the broad sense (H2) was computed following Mahmud and Kramer (1951) and genetic advance (GA) was calculated using the formula of Falconer and Mackay (1996). Based on estimated genetic parameters, we can conclude that the selection in F2 populations by grain yield per plant is most effective, and by length of the main spike and grain yield from the main spike is not effective and may be delayed for later (next/following) generations. The Crosses (Nikki × Prelom) F2, (Farmer × Guinness) F2 and (Vselena × Junak) F2 at this stage show the highest potential having in the mind the high averages values of studied parameters, coefficients of heritability and expected genetic advance.
References
Бояджиева, Д. 1988. Възможности за повишаване на ефективността от селекцията на зимната мека пшеница. Земиздат, София, с. 142
Димова, Д. и др. 2006. Оценка по добив и стабил ност на перспективни линии пшеница. Изследвания вър ху полските култури, т. ІІІ, кн. 1, 19-25
Димова, Д. и др. 2002. Проучване компонентите на продуктивността при хемомутантни популации зимна обикновена пшеница чрез корелационен и PATH – коефи циентен анализ. Научни доклади. Юбилейна научна сесия „120 години земеделска наука в Садово”, т. 3, 73-77
Панайотов, Ив., Т. Рачински. 2002. Селекцията на пшеницата като основа на зърненото производство в България. Селекция и агротехника на полските култури, т. 1. ДЗИ – Г. Тошево, 21-37
Рачовска, Г. и др. 2003. Оценка по добив и стабилност на мутантни линии зимна обикновена пшеница. –В: Сб. „120 години земеделска наука в Садово”, том ІІІ, 64-67
Ур, З., Г. Рачовска. 2010. Наследяване на количест вени признаци свързани с продуктивността в F1 хибриди обикновена зимна пшеница. Доклади от научна сесия. 11 – 12 ноември, Съюз на учените в България, Пловдив (под печат).
Alexander, W. L. et al. 1984. A comparison of yield and yield component selection in winter wheat. Euphytica, 33, 953-961
Ahmed, N. еt al. 2007. The inheritance of yield and yield components of five wheat hybrid populations under drought conditions. Indonesian Journal of Agricultural Science, 8 (2), 53-59
Bilgin, O. et al. 2011. Genetic variation and inter-rela tionship of some morpho-physiological traits in durum wheat (Triticum durum (L) DESF). Pak. J. Bot., 43 (1): 253-260
Bhargava, A. et al. 2003. Selection parameters for ge netic improvement in Chenopodium grain on sodic soil. J. Applied Hort., 5, 45-48
Dechev, D. 1995. System of breeding for yield in durum wheat. Plant Science, 32, 1/2, 24-26
Eid, H. M. 2009. Estimation of heritability and genetic advance of yield traits in wheat (Triticum aestivum L.) under drought conditions. International Journal of Genetics and Molecular Biology, v. 1 (7), 115-120
Falconer, D., T. Mackay. 1996. Introduction to Quanti tative Genetics. Longman Group Limited, Longman House, Burnt Mill. Harlow Essex CM20 2JE. England, 188-192
Firousian, A. 2003 Genetic variability and inheritance of grain yield and its components in wheat. Pak. J. Agri. Sci., v. 40, 3-4
Kusaksiz, T., S. Dere. 2010. A study on the determina tion of genotypic variation for seed yield and its utilization through selection in durum wheat (Triticum durum desf.) mutant populations. Turkish Journal of Field Crops, 15 (2), 188-192
Mangi, A. Sh. et al. 2010. Pak. J. Bot., 42 (3), 1807-1813
Mahmud, J., H. Kramer. 1951. Segregation for yield, height and maturity following a soybean cross. Agron. J., 42, 12, 605-609
Reeves, T. et al. 1999. New Wheat for a Secure, Sus tainable Future. Mexico, D. F.: CIMMYT, p. 28
Salim, I. et al. 2003. Estimates of heritability and genetic advance for grain yield traits in Triticum aestivum L. J. Anim. Pl. Sci.,13, 1, 52-54
Shukla, S. et al. 2004. Estimates of genetic parameters to determine variability for foliage yield and its different quan titative and qualitative traits in vegetable amaranth (A. tri color). J. Genet. Breed., 58, 169-176
Tsenov, N. et al. 2006. Study on the genotype x envi ronment interaction in winter wheat varieties II. Grain yield. Field Crops Studies, vol. III, 2, 167-177
Downloads
Published
License
Copyright (c) 2017 Bulgarian Journal of Crop Science
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
