Impacts of heat shock on productivity and quality of Triticum aestivum L. at different growth stages


  • Rabia GOHER University of Agriculture Peshawar, Department of Agronomy, 25130 Peshawar (PK)
  • Hiba M. ALKHARABSHEH Al Balqa Applied University, Faculty of Agricultural Technology, Department of Water Resources and Environmental Management (JO)
  • Mahmoud F. SELEIMAN King Saud University, College of Food and Agriculture Sciences, Department of Plant Production, P.O. Box 2460, Riyadh 11451 (SA)
  • André A. DIATTA Université Gaston Berger, Département Productions Végétales et Agronomie, UFR des Sciences Agronomiques, de l’Aquaculture et des Technologies Alimentaires (S2ATA), BP 234 Saint-Louis (SN)
  • Harun GITARI Kenyatta University, Department of Agricultural Science & Technology (KE)
  • Daniel O. WASONGA University of Illinois Urbana-Champaign, Department of Crop Sciences, Urbana, IL 61801 (US)
  • Gul R. KHAN University of Agriculture Peshawar, Department of Agronomy, 25130 Peshawar (PK)
  • Mohammad AKMAL University of Agriculture Peshawar, Department of Agronomy, 25130 Peshawar (PK)



climate change, heat shock duration, grain quality, wheat yield


The transitional phase of climate change is becoming a threat worldwide. Fluctuations in temperature are frequently observed in the life cycles of field crops. The current study was intended to evaluate heat stress (HS) at sensitive stages on four wheat cultivars’ growth, grain yield, and quality traits during two consecutive seasons. The experiment included four spring wheat cultivars that were exposed to HS durations (i.e., 0, 48, 96 and 144 h) at booting and anthesis stages. Pots were kept in an open-air, and labeled pots were moved to the glasshouse at the respective growth stage. After HS treatments, pots were moved from the glasshouse to the original position in the open air. The results showed that the cultivars differed in yield and grain quality traits, but their collective mean effect was significantly expressed with HS and HS duration (HSd) on the measured traits. Spike length was significantly affected by HS at the anthesis in comparison to those obtained from the control. However, the increase in HSd did not cause a significant effect on spike length compared to other treatments. Spike weight was significantly decreased in plants exposed to HS at booting and anthesis as well as by increasing HSd. In addition, grain weight and numbers were decreased in plants exposed to HS at booting and anthesis stages with a similar pattern by increasing HSd. Moreover, a reduction in amylose content was observed in grains of plants exposed to HS at booting and anthesis stages or when plants as exposed to a longer period of HSd. Nonetheless, amylopectin, wet gluten (WG) and grain N (GN) showed an increase in plants exposed to HS at booting and anthesis stages and/or extending HSd. This study concludes that plants exposed to different HS treatments during the life cycle had lower values for spike length, grains weight, and grains number per spike including amylose content in comparison to those obtained from the control. The decrease was significantly noted in the yield and grain quality of wheat when plants were exposed to HS at the booting stage in comparison to those exposed to HS at anthesis.


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How to Cite

GOHER, R., ALKHARABSHEH, H. M., SELEIMAN, M. F., DIATTA, A. A., GITARI, H., WASONGA, D. O., KHAN, G. R., & AKMAL, M. (2023). Impacts of heat shock on productivity and quality of Triticum aestivum L. at different growth stages. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 51(1), 13090.



Research Articles
DOI: 10.15835/nbha51113090

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