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    Citric Acid Alleviated Salt Stress by Modulating Photosynthetic Pigments, Plant Water Status, Yield and Nutritional Quality of Black gram [Vigna mungo (L.) Hepper]
    (Agricultural Research Communication Center, 2024-08-09) Md. Aktaru Hossain; Mst. Smrity Khatun; Mottaleb Hosen; Zakariya Ibne Sayed; Md. Rafiqul Islam; Md. Kaium Chowdhury; Muhammad Aamir Iqbal; Ibrahim Al-Ashkar; Zeki Erden; Cagdas Can Toprak; Ayman El Sabagh; Mohammad Sohidul Islam
    Background: Salt stress (SS) has seriously threatened the productivity of pulses including black gram in modern input-intensive farming systems which necessitates finding biologically viable, pro-farmer and environmentally friendly SS ameliorating strategies. Methods: An experiment was conducted to assess three levels of both SS (0, 50 and 100 mM NaCl) and citric acid (CA, 0, 50 and 100 mu M) applied as a foliar spray to ameliorate the deleterious effects of SS on black gram (cv. BARI Mash-3). The response variables included plant growth traits like plant height (PH), leaf number (BLPP) and root dry weight (RDW) along with chlorophyll contents (chl a, chl b and tchl), plant water status (relative water content RWC and water retention capacity WRC), grain yield (GY), stover yield (SY), biological yield (BY)) and harvest index (HI) along with nitrogen (N) and protein (P) content of black gram. Result: The results revealed that CA (100 mu M) remained unmatched by increasing PH (76.25%), NLPP (37.52%), RDW (83.67%), Chl a (17.80%), Chl b (11.59%), tChl (15.51%), RWC (9.81%) and WRC (26.64%) under highest level of induced SS. The same treatment also surpassed the rest of the doses in terms of grains number per pod (23.89%), 100 grains weight (59.74%), GY (82.86%), SY (59.66%), BY (64.94%) and HI. Moreover, CA accumulated N and P content (29.9%) in the grain under SS conditions. These results indicated that application CA alleviated the adverse effects of SS by triggering the growth, yield and nutritional quality which might be developed as a potent strategy to cope with the declining productivity of black gram in saline environment.
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    Mitigating Drought by Exogenous Potassium-mediated Improvements in Water Relation, Antioxidant Defense, Morpho-physiological and Biochemical Attributes of Black Gram [Vigna mungo (L.) Hepper]
    (Agricultural Research Communication Center, 2024-12-26) Muhammad Ahmad; Ejaz Ahmad Waraich; Aneeqa Munir; Saddam Hussain; Raees Ahmed; Muhammad Aamir Iqbal; Usman Zulfiqar; Khalid F. Almutairi; Zeki Erden; Çaðdaþ Can Toprak; Md Atikur Rahman; Ayman El Sabagh
    Background: Globally, drought stress (DS) incidence in early development and grain-filling stages of crops like black gram has posed a serious constraint to the growth and yield of legume crops. To ensure the food and nutritional security of the rising human population, requisites developing eco-friendly, pro-farmers and cost-effective DS mitigation strategies for imparting yield sustainability to black gram. Methods: In this trial, treatments included control group entailing control (normal watering), water spray (WA, positive control), control+50 mg L-1 K2SO4, control +100 mg L-1 K2SO4, control +150 mg L-1 K2SO4, while drought treatment included drought stress (plant exposed to 15-20% by suspending water supply), water spray (WA, positive control), drought +50 mg L-1 K2SO4, drought +100 mg L-1 K2SO4 and drought +150 mg L-1 K2SO4. Result: The results exhibited that the DS seriously declined plant growth, relative water content and water potential by 24.2% and 39.3%, respectively, inducing higher levels of malondialdehyde (MDA) content and hydrogen peroxide (H2O2) concentration that reduced cell membrane stability, stomatal conductance and photosynthetic rate, than the control. However, the foliar applied K significantly improved plant growth, plant water status, gas exchange and photosynthetic performance, chlorophyll content and antioxidant enzyme activity. Exogenous application of K further reduced lipid peroxidation, cell membrane injury and hydrogen peroxide by 12.7, 17.6 and 8.70%, respectively.
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    Organic weed management can improve rice-maize rotation performances under conservation agriculture
    (Pakistan Journal of Botany, 2024-11-14) Subhra Sahoo; Dhirendra Kumar Roy; Shivani Ranjan; Sumit Sow; Smruti Ranjan Padhan; Alaa Baazeem; Omer Konuşkan; Zeki Erden; Çağdaş Can Toprak; Ayman El Sabagh
    A two-year field experiment was carried out to ascertain the influence of organic weed management (OWM) on the crop performance and productivity of rice–maize rotation under conservation agriculture. The experiment comprised of four tillage practices as main plots and five OWM treatments as subplots arranged in split-plot design with three replication. The tillage management treatments included ZTR fb ZTM: zero-tillage (ZT) direct seeded rice (DSR) followed by (fb) ZT-maize, PBDSR+R fb PBDSM+R: DSR fb maize both in permanent bed (PB) with residue incorporation, PBDSR-R fb PBDSM-R: DSR fb maize both in PB without residue and CTR fb CTM: conventionally tilled rice fb maize. In OWM, five treatments were as follows: UC: unweeded weed control, VM: vermicompost mulching, PVM: phosphorous (P) enriched VM, LM: live-mulch of Sesbania spp. in rice and Pisum sativum in maize, WF: weed-free check. The PBDSR+R fb PBDSM+R obtained a significantly higher plant height (18.9–19.7%), leaf area index (LAI) (24.0–24.6%), dry matter accumulation (DMA) (10.8– 11.3%) and crop growth rate (CGR) over CTR fb CTM in both rice and maize in all the growth stages. Moreover, PBDSR+R fb PBDSM+R recorded significantly higher grain yield (63.6 and 66.0 q ha-1) in rice and in maize (93.02 and 94.31 q ha-1) over other treatments in both years. Among the various OWM, LM reported significantly superior growth attributes viz. plant height, number of tillers m-2, leaf area index and dry matter accumulation in rice and maize and grain yield by 12.3–16% in rice and 7.4–8.5% in maize over VM across the years of study. The PBDSR+R fb PBDSM+R recorded and LM recorded significantly the highest net return and benefit-cost ratio throughout the study. The study highlights that residue incorporation under rice–maize rotation in PB led CA system along with LM enhanced productivity and profitability.
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    Sustainable cereal production through integrated crop management: a global review of current practices and future prospects
    (Frontiers Media SA, 2025-03-13) Vaddula Yamini; Kulvir Singh; Mohammed Antar; Ayman El Sabagh
    Among cereals, three crops namely maize, wheat, and rice account for 90% of the total cereal production, with global production levels of 791.2, 522.6, and 1229.63 million tons for wheat, rice and maize, respectively. The global challenges of food insecurity, climate variability, and unsustainable land use necessitate a redefined approach to cereal production, focusing on climate resilience, low vulnerability, and high productivity while establishing food and environmental safety. Integrated crop management (ICM) offers a holistic farming approach that integrates various agricultural practices to ensure long-term benefits and mitigate risks. This comprehensive review examined a total of 108 documented studies from existing literature pertaining to the last 23 years, besides case studies on ICM in rice, wheat, and maize production, analyzing its benefits, challenges, and future directions. In Asian countries, where rice is a staple food, ICM practices have effectively addressed challenges such as yield stagnation, declining profits, and crop failures. Nutrient and pest management, along with conservation agriculture (CA), have played a crucial role in overcoming these challenges. China’s implementation of site-specific management duly integrated with other practices, has successfully reduced excessive nitrogen use besides improved environmental and health outcomes. Sustainable corn production has been achieved in the USA and Africa through comprehensive implementation of CA and crop diversification. Globally, ICM has demonstrated yield increases of 10–19% for rice, 16–30% for wheat, and 13.5–30% for maize crops. Despite having ample potential, the widespread adoption of ICM faces technical, climate-related, and economic constraints. Overcoming these challenges requires targeted training, extension services, and supportive policies. Furthermore, future research should focus on addressing key knowledge gaps to facilitate the widespread implementation of ICM. While promoting climatic resilience and sustainability in cereal production systems, ICM can contribute to food security and environmental preservation globally.