Assessment of variability Parameters in Indigenous and Exotic Genotypes of Durum Wheat (Triticum durum Desf.)

Author: Avadhoot B. Dharmadhikari, Abhay Dashora, Urmila, Himansuman, Parul Gupta and Payal Agarwal

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Abstract

Durum wheat is a versatile cereal crop, offers a rich source of protein, carbohydrates and minerals making it a valuable addition to a balanced diet. To study the genetic variability, genotypic and phenotypic coefficient of variation, broad sense heritability and genetic advance in durum wheat, a field experiment was conducted during Rabi, 2022-23 at RCA, MPUAT, Udaipur to gain a deeper understanding of the genetic makeup of durum wheat. The experiment laid out in a Randomized Block Design (RBD) with three replications, comprised of 36 genotypes and observations on 15 traits of durum wheat were recorded. In this experiment, analysis of variance indicated that significant variation was present among the different genotypes of the durum for all the traits under study. Among the traits studied, grain yield per plant, grain weight per spike, number of grains per spike, peduncle length and 1000-grain weight displayed the highest values for both genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV). Additionally, traits such as days to maturity, number of grains per spike, 1000-grain weight and length of the main spike exhibited high heritability and high genetic advance. The combination of high heritability and high genetic advance provides a clear understanding of the potential of the traits for selection in crop improvement programs. These findings can help in the finding potential donor genotypes those can be further explored for hybridization and genetic improvement strategies to enhance the desired traits in durum wheat.

Keywords

Triticum durum, Variability, Heritability, Genetic gain, GCV, PCV

Conclusion

Based on the findings of the present study, it can be concluded that the phenotypic coefficient of variation (PCV) slightly surpasses the genotypic coefficient of variation (GCV) for most traits, indicating minimal influence of environmental variations on these characteristics. The traits exhibiting the highest values for both GCV and PCV include the number of grains per spike, grain weight per spike, peduncle length, grain yield per plant and harvest index indicates the presence of wider variability for these traits in the genotypes studied. The combination of the high heritability and high genetic advance provide a clear image of the traits in the selection process for crop improvement programme.

References

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How to cite this article

Avadhoot B. Dharmadhikari, Abhay Dashora, Urmila, Himansuman, Parul Gupta and Payal Agarwal (2023). Assessment of variability Parameters in Indigenous and Exotic Genotypes of Durum Wheat (Triticum durum Desf.). Biological Forum – An International Journal, 15(7): 333-337.