Genetics of lodging resistance related traits in bread wheat (Triticum aestivum L.)

Authors

  • Sana Muazzam Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan
  • Abdus Salam Khan Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan
  • Zulfiqar Ali Muhammad Nawaz Sharif University of Agriculture, Multan, Pakistan
  • Sultan Habibullah Khan Center of Agriculture Biotechnology and Biology, University of Agriculture, Faisalabad, Pakistan

DOI:

https://doi.org/10.3329/bjb.v49i3.49991

Keywords:

Gene action, Genetic variability, Additives, Epistasis, Segregations

Abstract

To evaluate the genetic background of lodging traits, six populations of two wheat crosses were sown under different nitrogen levels by using split plot design. Generation mean analysis was used to estimate the gene action for lodging related traits. Results showed genetic variability and significant differences for all traits. Allelic and non-allelic gene actions were operative for different traits with different magnitude under both normal and lodging condition. Duplicate types of espistasis were observed for grain yield per plant, 1000- kernel weight, number of grains per spike and number of tillers. The stem diameter, height of basal nodes and basal inter-nodal distance depicted the additive, additive × dominance and dominance gene action. The aforementioned results showed that plant height, stem diameter, height of basal nodes and basal internodal distance were more prone traits for lodging and selection should be practiced in later generations with increasing homozygosity.

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Published

2020-09-20

How to Cite

Muazzam, S., Khan, A. S., Ali, Z., & Khan, S. H. (2020). Genetics of lodging resistance related traits in bread wheat (Triticum aestivum L.). Bangladesh Journal of Botany, 49(3), 611–617. https://doi.org/10.3329/bjb.v49i3.49991

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Articles