Morphological Response of Sorghum and Barley Under Drought Stress and Elevated CO2 Concentration: Crop Species Exhibit Different Morphological Responses Under Limited Water Supply

Abstract

Sorghum, millet, and barley are cereal crops that are often grown in semi-arid locations where agricultural output is hampered by drought stress. These crops’ morphological responses to drought stress differ according to the species, growth stage, and degree of the stress. To deal with drought stress, cereal crops have many morphological adaptations, including modifications in the root, stem, and leaves that reduce water loss through transpiration. Drought is a significant environmental element that influences plant growth and output. The morphological responses of sorghum, millet, and barley to drought stress were studied in this study. The experiment was carried out in climate-controlled growing chambers. Morphological parameters such as shoot and root length, plant height, tiller number, and leaf area were measured. The findings reveal that each of the three crops reacted differently to drought stress. Sorghum and millet were shown to be more drought resistant than barley. As compared to millet and barley, sorghum showed the strongest tolerance to drought stress, with the least drop in shoot and root length, plant height, and leaf area. According to the findings of this study, sorghum, and millet may be preferable candidates for cultivation in drought-prone areas. Further measurements will be continued to study the molecular and physiological mechanisms behind these crops’ morphological responses to drought stress.

Presenters

Emmanuel Opoku
Ph.D Student/Researcher, Laboratory Ecological Plant Physiology, Global Change Research Institute CAS ( CzechGlobe), South Moravia, Czech Republic

Details

Presentation Type

Poster Session

Theme

Assessing Impacts in Diverse Ecosystems

KEYWORDS

DROUGHT STRESS, PLANT MORPHOLOGY, CEREALS, ADAPTATION MECHANISM