Volume 15, Issue 71 (vol. 15, no. 71 2026)
2026, 15(71): 237-252 |
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Gholami M, Forouzesh P, Rahemi M R, Habibi D, Shahbazi S. Evaluation of organic treatments on some morphological characteristics and enzymatic activity of two cotton cultivars (Gossypium herbaceum L.)
under drought stress. Plant Process and Function 2026; 15 (71) : 14
URL: http://jispp.iut.ac.ir/article-1-2213-en.html
URL: http://jispp.iut.ac.ir/article-1-2213-en.html
1- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran
2- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran ,peymanforouzesh@iau.ac.ir
3- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Atomic Energy Organization of Iran (AEOI), Karaj, Iran
2- Department of Agronomy and Plant Breeding, Ka.C. Islamic Azad University, Karaj, Iran ,
3- Nuclear Agriculture Research School, Nuclear Science and Technology Research Institute (NSTRI), Atomic Energy Organization of Iran (AEOI), Karaj, Iran
Abstract: (19 Views)
Drought stress is one of the most important abiotic stresses and providing solutions such as the use of stress-resistant varieties and organic fertilizers is very important. Therefore, the present study was conducted in Karaj for two years to investigate some morphological and physiological characteristics of two cotton cultivars under drought stress conditions in a split-plot randomized complete block design with three replications. The research treatments included drought stress at two levels (application of drought stress (after the emergence of the first flowers) and non-stress conditions (control)), in the main plots, cotton cultivars (Golestan cultivar and 20 line), in the subplots, and organic treatments (application of growth-promoting bacteria (Azospirillium), superabsorbent polymer, no application (control)) in the subplots. The results of the present study showed that drought reduced the yield of both cotton cultivars. Azospirillium and superabsorbent reduced the negative effects of drought stress compared to the control. Superabsorbent polymer under stress-free conditions increased the wash yield (22.84%), decreased the proline content (54.54%), catalase enzyme activity (75%) and superoxide dismutase (41.27%) compared to the control. Also, azospirillum increased the wash yield (19.31%), decreased the proline content (21.42%), catalase enzyme activity (23.52%) and superoxide dismutase (35.36%) compared to the control. Therefore, in order to reduce the effects of drought stress and improve cotton yield, the use of growth-promoting bacteria (Azospirillium) and superabsorbent polymer can be recommended.
Article number: 14
Keywords: Azospirillium, Catalase enzyme, Golestan cultivar, Growth-promoting bacteria, Superabsorbent polymer
Type of Study: Applicable |
Subject:
Droughts Stress
Received: 2025/05/15 | Accepted: 2025/08/5 | Published: 2026/05/2
Received: 2025/05/15 | Accepted: 2025/08/5 | Published: 2026/05/2
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