Synergistic effects of gibberellic acid, biochar, and rhizobacteria on wheat growth under heavy metal and drought stress DOI Creative Commons
Tauseef Anwar, Huma Qureshi,

Ejaz Hussain Siddiqi

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Dec. 5, 2024

Wheat (Triticum aestivum L.), a vital crop constituting approximately 20% of global caloric intake, faces significant threats from heavy metal contamination, particularly cadmium (Cd) and chromium (Cr), along with drought stress, jeopardizing food security. This study aimed to investigate the combined effects these stressors potential plant growth enhancers such as gibberellic acid (GA3), biochar (BC), rhizobacteria improve wheat growth. Conducted in controlled greenhouse environment at The Islamia University Bahawalpur, experiment utilized completely randomized design three replications across 72 pots, each filled clay loam soil. experimental layout included 24 treatment combinations involving stress (6 mg/kg), (300 600 simulated -0.8 MPa soil water potential, various applications GA3 (200 mg L− 1) (0.6% 0.9% w/w). Seedlings T. cv. Dilkash-21, treated Agrobacterium fabrum, showed metrics, root lengths 9.36 cm under 6 mg/kg Cd compared 5.53 controls. also increased shoot fresh weights by 24.7% 22.5%, respectively, while chlorophyll content peaked 2.26 mg/g Cd. Additionally, electrolyte leakage decreased 10.5%, vigor index improved 1586.05 stress. These findings indicate that utilizing can mitigate adverse environmental on wheat. Future research should focus underlying mechanisms treatments explore their application field conditions further enhance productivity resilience against

Language: Английский

Foliar Application of Plant Growth Regulators Enhances Drought Tolerance by Modulating Growth and Biochemical Responses in Sugarcane Varieties DOI Open Access
Shakeel Ahmad, Yanfei Deng,

Rongman Lv

et al.

Journal of Agronomy and Crop Science, Journal Year: 2024, Volume and Issue: 210(6)

Published: Nov. 2, 2024

ABSTRACT Plant growth regulators (PGRs) improve crop and mitigate the adverse effects of drought stress. This study explores various PGRs including melatonin (MT), indole‐butyric acid (IBA) gibberellic (GA 3 ) on drought‐tolerant Zhongzhe 9 (ZZ9) Xintaitang 22 (ROC22), as well drought‐sensitive varieties Guitang‐44 (GT44) Funong 41 (FN41) varieties. A pot experiment was conducted to evaluate foliar application these hormones alone or in combination sugarcane seedlings under stress conditions. At sixth leaf stage, induced by reducing soil moisture 40%–45% field capacity. Results showed that variety GT44 had highest plant height (17.97 cm), while enhanced relative water content (RWC) FN41 0.96%. treatment also increased 33.98% RWC 3.26% compared controls. MT significantly chlorophyll a b contents 4.82% 4.51%, respectively. Antioxidant enzyme activities superoxide dismutase peroxidase 16.39% 12.57%, respectively, indicating oxidative defence. Moreover, applications reduced hydrogen peroxide malondialdehyde (MDA) accumulation, signifying decreased damages. The combinations + GA IBA improved attributes, antioxidant enzymes, osmolytes accumulation ROS MDA both tolerant sensitive Thus, combined treatments effectively mitigated seedlings, providing valuable insights for sustainable agricultural practices.

Language: Английский

Citations

1
The role of salicylic acid in modulating phenotyping in spring wheat varieties for mitigating drought stress DOI Creative Commons

Rawan A. Awadalla,

Ahmed Sallam, Andreas Börner

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Oct. 11, 2024

Abstract Climate change-related droughts that recur frequently are one of the biggest obstacles to wheat ( Triticum aestivum L.) productivity. Worldwide, attempts being done establish drought-resistant cultivars. However, progress is slow since drought tolerance a complex trait controlled by numerous genes, and its expression influenced environment. Phenotypic, biochemical physiological, genotyping approaches highlighted as critical research components for leveraging genetic variation in eight genotypes. Treatments included spring genotypes (IPK_040, IPK_046, IPK_050, IPK_071, IPK_105, WAS_007, WAS_024 WAS_031), normal irrigation (NI), stress (D) (30% field capacity (FC)), with 0.5 mM SA (NSA), treated (DSA). The results revealed there was reduction relative water content, an increase membrane leakage, leaf chlorophyll content under stress. induced defense responses against increasing osmolytes antioxidative enzymes activities. Compared NI group, DSA treatment improved regulation, antioxidant capacity, resistance. significantly reduced deleterious effects on phenotyping more WAS_ 024 IPK_ 105 most responsive salicylic acid were 046 among IPK genotypes, whereas WAS_031 genotype amongst WAS based morpho-physiological traits. findings this study give solid foundation assessing resistance T. developing cultivation-specific management methods. Graphical

Language: Английский

Citations

0
Synergistic effects of gibberellic acid, biochar, and rhizobacteria on wheat growth under heavy metal and drought stress DOI Creative Commons
Tauseef Anwar, Huma Qureshi,

Ejaz Hussain Siddiqi

et al.

BMC Plant Biology, Journal Year: 2024, Volume and Issue: 24(1)

Published: Dec. 5, 2024

Wheat (Triticum aestivum L.), a vital crop constituting approximately 20% of global caloric intake, faces significant threats from heavy metal contamination, particularly cadmium (Cd) and chromium (Cr), along with drought stress, jeopardizing food security. This study aimed to investigate the combined effects these stressors potential plant growth enhancers such as gibberellic acid (GA3), biochar (BC), rhizobacteria improve wheat growth. Conducted in controlled greenhouse environment at The Islamia University Bahawalpur, experiment utilized completely randomized design three replications across 72 pots, each filled clay loam soil. experimental layout included 24 treatment combinations involving stress (6 mg/kg), (300 600 simulated -0.8 MPa soil water potential, various applications GA3 (200 mg L− 1) (0.6% 0.9% w/w). Seedlings T. cv. Dilkash-21, treated Agrobacterium fabrum, showed metrics, root lengths 9.36 cm under 6 mg/kg Cd compared 5.53 controls. also increased shoot fresh weights by 24.7% 22.5%, respectively, while chlorophyll content peaked 2.26 mg/g Cd. Additionally, electrolyte leakage decreased 10.5%, vigor index improved 1586.05 stress. These findings indicate that utilizing can mitigate adverse environmental on wheat. Future research should focus underlying mechanisms treatments explore their application field conditions further enhance productivity resilience against

Language: Английский

Citations

0