Date of Award
Master of Science (MS)
Mohammed Abdul Muhsen Ali Salem Alyafei
Shyam S. Kurup
Ecosystems have been affected by climate changes. Both agriculture and environmental changes are correlated with various features since climate change is the main cause of abiotic and biotic stress which affects crop plants. The climate changes and their severe impact on plant productivity showed great intensities due to the effects of abiotic stress. In the present investigation, five quinoa varieties viz KAUST- 05395/CHFN-68 (V1), KAUST-05398/PI-614889 (V2), KAUST-05397/PI-614885 (V3), KAUST-05403/ICBA-Q3 (V4), and KAUST-05399/PI-614888 (V5) were screened for their salinity stress response by measuring the morphological parameters such as total plant height, fresh and dry weight of shoot and roots. V4 and V5 varieties were identified as salt-tolerant and selected to study the response to future climatic scenarios such as eCO₂, enhanced UVB radiation and UVB+eCO₂ combined effect in Open Top Chambers. The response of studied quinoa varieties was measured by analyzing the photosynthetic pigments, biochemical contents, proline metabolizing enzymes, non-enzymatic antioxidants and antioxidant enzyme activities. Based on the results obtained in the present investigation, further study is warranted for screening the more varieties with additional climate change factors such as temperature and humidity to find out more tolerant varieties of quinoa suitable for future climatic conditions.
Al Blooshi, Saif Ali Matar, "RESPONSE OF FIVE CHENOPODIUM QUINOA VARIETIES TO DIFFERENT SALINITY LEVELS, ELEVATED CO₂ AND UVB" (2021). Theses. 882.