• The International Journal of Biological Research (TIJOBR)- Published Quarterly
  • The International Journal of Global Sciences (TIJOGS) -Published Quarterly

Relative Susceptibility/Resistance of advance genotypes of Hordeum vulgare on the basis of quantitative and qualitative losses caused by insect pests during storage

The International Journal of Biological Research (TIJOBR)


M. Waseem Zulifqar1*, Zahida Noreen1, Muhammad Awais2

1Institute of Plant Breeding and Biotechnology, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan

2Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan

*Corresponding Authors: waseemaqib98@yahoo.com

Submitted Accepted Published
Jun 11,2020 Jun 11,2020

2020 / Vol: 3 / Issue: 3


Insect infestation is severe problem during storage of cereals. Trogoderma granarium and Tribolium castaneum are most destructive insect pests of different stored cereals. Present study was conducted to evaluate response of advanced genotypes of barley (Hordeum vulgare) in terms of quantitative losses against T. granarium and T. castaneum. For this purpose, six varieties of barley were used. The parameters studied for quantitative losses were percent insect damaged grains, percent insect undamaged/healthy grains, percent weight loss and frass weight (g). For quantitative losses 500g sample of each genotype was taken in jars and there were three replications of each genotype, after releasing 30 insects of each species in their respective jars, jars were kept at room temperature for storage period of 30, 60, 90 and 120 days. The data regarding quantitative losses caused by these insects was observed after each storage period. The maximum frass production by Trogoderma granarium was observed in Sahiwal (S.L), weight loss in Jou-83 and seed damage in Haider-93 after 4 months period of infestation. While, in red flour beetle maximum frass weight in Sahiwal (S.L), weight loss in F.H-312 and damage seed in F.H-312 were observed prior to 4 months period. After 4 months period, the viability test showed that after infestation with Khapra beetle, maximum germination was observed in F.H-312 while minimum was recorded in Jou-83 genotype. Whereas barley infested with red flour beetle showed maximum germination in Haider-93, while minimum was observed in Bahawalpur-474. So, it can be concluded that F.H-312 genotype is tolerant against Khapra beetle, while Jou-83 is resistant. In case of red flour beetle, Bahawalpur-474 is resistant genotype and F.H-312 is tolerant.

Key words: T. granarium, T. castaneum, H. vulgare, quantitative and qualitative losses


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