Effect of management practices on yield and seed loss in durum wheat under arid conditions

  • Mourad Hattab Department of Agronomic Sciences. Faculty of Sciences. Laboratory of Biological and Agronomic Sciences (LSBA), Amar Telidji University, Laghouat, Algeria. https://orcid.org/0000-0002-3078-1288
  • Abderrahmane Kessaissia National Institute for Forestry Research (NIFR). Experimental Station for the Protection of Watersheds, Ténès. Chlef, Algeria https://orcid.org/0000-0001-6308-4000
Keywords: durum wheat, yield losses, emergence, mechanical harvesting

Abstract

Despite irrigation expansion, durum wheat yields in Algeria remain substantially below genetic potential. This study quantified emergence, natural, and mechanical losses under irrigated arid conditions in Laghouat Province, Algeria, during 2024-2025. Five experimental fields (Vitron variety) were monitored, measuring emergence densities, potential yield components, pre-harvest yield, and harvested yield. Emergence losses (24-43 %) were compensated through tillering (r = -0.996, p≤0.001), though excessive densities (> 600 seeds.m-2) increased losses without yield benefit. Potential yield ranged from 9.3 to 13.7 t.ha-1, with grain number per spike as primary determinant (r = 0.994, p≤0.001). Natural losses (12-38 %) were amplified by extreme weather (hail, 36 mm.h-1 rainfall, May 14, 2025). Mechanical losses (31-47 %) exceeded international standards (3-7 %). Cumulative losses reached 54-60 % of potential, valorizing between 40 and 46 %. Optimization must prioritize mechanical loss reduction, legume rotations, and row seeding at moderate density.

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References

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Published
2026-05-28
How to Cite
Hattab, M., & Kessaissia, A. (2026). Effect of management practices on yield and seed loss in durum wheat under arid conditions. Revista De La Facultad De Agronomía De La Universidad Del Zulia, 43(2), e264331. Retrieved from https://produccioncientificaluz.org/index.php/agronomia/article/view/45631
Section
Crop Production