title: Response of different genotypes of faba bean plant to drought stress.
abstract: Drought stress is one of the major abiotic stresses that are a threat to crop production worldwide. Drought stress impairs the plants growth and yield. Therefore, the aim of the present experiment was to select the tolerant genotype/s on the basis of moprpho-physiological and biochemical characteristics of 10 Vicia faba genotypes (Zafar 1, Zafar 2, Shebam, Makamora, Espan, Giza Blanka, Giza 3, C4, C5 and G853) under drought stress. We studied the effect of different levels of drought stress i.e., (i) normal irrigation (ii) mild stress (iii) moderate stress, and (iv) severe stress on plant height (PH) plant-1, fresh weight (FW) and dry weight (DW) plant-1, area leaf-1, leaf relative water content (RWC), proline (Pro) content, total chlorophyll (Total Chl) content, electrolyte leakage (EL), malondialdehyde (MDA), hydrogen peroxide (H2O2) content, and activities of catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) of genotypes of faba bean. Drought stress reduced all growth parameters and Total Chl content of all genotypes. However, the deteriorating effect of drought stress on the growth performance of genotypes "C5" and "Zafar 1" were relatively low due to its better antioxidant enzymes activities (CAT, POD and SOD), and accumulation of Pro and Total Chl, and leaf RWC. In the study, genotype "C5" and "Zafar 1" were found to be relatively tolerant to drought stress and genotypes "G853" and "C4" were sensitive to drought stress.
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. manzerhs@yahoo.co.in.
authors.forename: Manzer H
authors.initials: MH
authors.lastname: Siddiqui
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. muthr20@gmail.com.
authors.forename: Mutahhar Y
authors.initials: MY
authors.lastname: Al-Khaishany
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. maqutami@gmail.com.
authors.forename: Mohammed A
authors.initials: MA
authors.lastname: Al-Qutami
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. mwhaibi@ksu.edu.sa.
authors.forename: Mohamed H
authors.initials: MH
authors.lastname: Al-Whaibi
authors.affiliation: Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, Dhaula Kuan, New Delhi 110021, India. anil.anilgrover@gmail.com.
authors.forename: Anil
authors.initials: A
authors.lastname: Grover
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. hayhassan@ksu.edu.sa.
authors.forename: Hayssam M
authors.initials: HM
authors.lastname: Ali
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. malwhibi@ksu.edu.sa.
authors.forename: Mona S
authors.initials: MS
authors.lastname: Al-Wahibi
authors.affiliation: Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 2455, Saudi Arabia. najatab@ksu.edu.sa.
authors.forename: Najat A
authors.initials: NA
authors.lastname: Bukhari
mesh_terms: D002374:Catalase / Q000378:metabolism; D002734:Chlorophyll / Q000378:metabolism; D055864:Droughts; D005838:Genotype; D006861:Hydrogen Peroxide / Q000378:metabolism; D008315:Malondialdehyde / Q000378:metabolism; D009195:Peroxidase / Q000378:metabolism; D011392:Proline / Q000378:metabolism; D013312:Stress, Physiological; D013482:Superoxide Dismutase / Q000378:metabolism; D031307:Vicia faba / Q000235:genetics* / Q000378:metabolism
chemical_list: D002734:Chlorophyll; D008315:Malondialdehyde; D011392:Proline; D006861:Hydrogen Peroxide; D002374:Catalase; D009195:Peroxidase; D013482:Superoxide Dismutase