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    Effect of planting and nutrient management on the growth, yield and protein content of aromatic fine rice
    (TathQeef Scientific Publishing, 2023) Fatematuz-Zohora; Paul, Swapan Kumar; Rahman, Afrina; Paul, Newton Chandra; Rahman, Md. Moshiur; Javed, Talha; Barutçular, Celaleddin
    An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to November 2015 to find out the effect of planting and nutrient management on the growth, yield and protein content of aromatic fine rice (cv. Binadhan-13). The experimental treatments comprised six planting arrangement viz. 25 cm × 20 cm, 25 cm × 15 cm, 25 cm × 10 cm, 20 cm × 20 cm, 20 cm × 15 cm, 20 cm × 10 cm and four nutrient management viz. recommended dose of inorganic fertilizer (RDF) N-P2 O5-K2 O-S-Zn at the rate of 75-42-75-17-2 kg ha-1 respectively; Cow dung @ 10 t ha-1, 25% less than RDF + Cow dung @ 5 t ha-1, 50% less than RDF + Cow dung @ 5 t ha-1. The experiment was laid out in a randomized complete block design (RCBD) with three replications. Different crop characters, yield contributing characters, yield and grain quality were significantly influenced by planting arrangement and nutrient management. In the crop growth stage, the maximum number of tillers hill-1 (19.03) was recorded from the 25 cm × 15 cm spacing fertilized with 25% less than RDF + cow dung @ 5 t ha-1 and the highest total dry matter production (62.70), crop growth rate (19.37) and chlorophyll content (35.77) of leaf were recorded from the 20 cm × 15 cm spacing fertilized with 25% less than RDF + cow dung @ 5 t ha-1. At harvest, the highest grain yield (3.66 t ha-1) and protein content (9.63%) were recorded from the 20 cm × 15 cm spacing fertilized with 25% less than RDF + cow dung @ 5 t ha-1. So, transplantation at 20 cm × 15 cm spacing and fertilization with 25% less than the recommended dose of inorganic fertilizer + cow dung @ 5 t ha-1 was found to be promising practice for the cultivation of aromatic fine rice (cv. Binadhan-13). © The authors.
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    Evaluation of Drought Tolerance of Some Wheat (Triticum aestivum L.) Genotypes through Phenology, Growth, and Physiological Indices
    (Mdpi, 2021) Chowdhury, M. Kaium; Hasan, M. A.; Bahadur, M. M.; Islam, Md Rafiqul; Hakim, Md Abdul; Iqbal, Muhammad Aamir; Javed, Talha
    Increasing human population and changing climate, which have given rise to frequent drought spells, pose a serious threat to global food security, while identification of high yielding drought tolerant genotypes remains a proficient approach to cope with these challenges. To offer a methodology for the evaluation of the drought-tolerant wheat genotypes based on the pheno-physiological traits, a field experiment was executed, entailing four wheat genotypes viz. BARI Gom 26, BAW 1158, BAW 1167, and BAW 1169 and two water conditions viz. control treatment (three times irrigation at 20, 50, and 70 DAS, i.e., 100% field capacity) and stressed treatment (no irrigation during the entire growing season). The results revealed that drought stress drastically reduced the days to booting, heading, anthesis and physiological maturity, relative water content (RWC), chlorophyll content, canopy temperature depression (CTD), and photo-assimilates-spike dry matter (SDM), grains spike(-1) and grain yield of all wheat genotypes. In addition, the genotypes BAW 1167 and BARI Gom 26 remained more prone to adverse effects of drought as compared to BAW 1169 and BAW 1158. Furthermore, DS induced biosynthesis of compatible solutes such as proline, especially in BAW 1169, which enabled plants to defend against oxidative stress. It was inferred that BAW 1169 remained superior by exhibiting the best adaptation as indicated by the maximum relative values of RWC, total chlorophyll, CTD, proline content, SDM, grains spike(-1), and grain yield of wheat. Thus, based on our findings, BAW 1169 may be recommended for general adoption and utilization in future wheat breeding programs aimed at developing potent drought-tolerant wheat genotypes to ensure food security on a sustainable basis.
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    Modern Biotechnologies: Innovative and Sustainable Approaches for the Improvement of Sugarcane Tolerance to Environmental Stresses
    (Mdpi, 2021) Shabbir, Rubab; Javed, Talha; Afzal, Irfan; El Sabagh, Ayman; Ali, Ahmad; Vicente, Oscar; Chen, Pinghua
    Sugarcane (Saccharum spp.) is one of the most important industrial cash crops, contributing to the world sugar industry and biofuel production. It has been cultivated and improved from prehistoric times through natural selection and conventional breeding and, more recently, using the modern tools of genetic engineering and biotechnology. However, the heterogenicity, complex poly-aneuploid genome and susceptibility of sugarcane to different biotic and abiotic stresses represent impediments that require us to pay greater attention to the improvement of the sugarcane crop. Compared to traditional breeding, recent advances in breeding technologies (molecular marker-assisted breeding, sugarcane transformation, genome-editing and multiple omics technologies) can potentially improve sugarcane, especially against environmental stressors. This article will focus on efficient modern breeding technologies, which provide crucial clues for the engineering of sugarcane cultivars resistant to environmental stresses.
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    Recent Developments to Mitigate Selenium Deficiency in Agricultural Eco-Systems
    (Tech Science Press, 2022) Naz, Misbah; Shabbir, Rubab; Verma, Krishan K.; Rastogi, Anshu; Rajput, Vishnu D.; Javed, Talha; Raza, Muhammad Ammar
    Under changing climate, trace elements like selenium (Se) have emerged as vital constituent of agro-ecosystems enabling crop plants to off-set the adverse effects of suboptimal growth conditions. The available form of selenium is important for boosting its bioavailability to crop plants having varied agro-botanical traits and root architectural systems. As compared to selenite, the selenate has a weaker soil bonding, higher absorption in the soil solution which results in a comparatively absorption by plant roots. Various factors including dry climate, high pH, optimal ambient air temperature, less accumulation of water, and low concentration of organic matter in the soil tend to boost the selenate ratio in the soil. The use of selenium pelleted seeds has emerged as an interesting and viable alternative to alleviate selenium deficiency in agricultural eco-systems. Similarly, the co-inoculation of a mixture of Selenobacteria and Arbuscular mycorrhizal fungi represents an evolving promising strategy for the bio-fortification of wheat plants to produce selenium-rich flour to supplement human dietary needs. Furthermore, in-depth research is required to assure the effectiveness of biological fertilization procedures in field conditions as well as to explore and increase our understanding pertaining to the underlying main mechanisms and channels of selenium absorption in plants. The focus of this review is to synthesize the recent developments on Se dynamics in soil-plant systems and emerging promising strategies to optimize its levels for crop plants. Recent developments regarding the use of micro-organisms as a biotechnological mean to enhance plant nutrition and crop quality have been objectively elaborated. The study becomes even more pertinent for arid and semi-arid agro-ecosystems owing to the potential role of selenium in providing stress tolerance to crop plants. Moreover, this review synthesizes and summarizes the recent developments on climate change and bioavailability, and the protective role of selenium in crop plants.
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    Sustainable Development of Chitosan/Calotropis procera-Based Hydrogels to Stimulate Formation of Granulation Tissue and Angiogenesis in Wound Healing Applications
    (Mdpi, 2021) Zahid, Muhammad; Lodhi, Maria; Rehan, Zulfiqar Ahmad; Tayyab, Hamna; Javed, Talha; Shabbir, Rubab; Mukhtar, Ahmed
    The formation of new scaffolds to enhance healing magnitude is necessarily required in biomedical applications. Granulation tissue formation is a crucial stage of wound healing in which granulation tissue grows on the surface of a wound by the formation of connective tissue and blood vessels. In the present study, porous hydrogels were synthesized using chitosan incorporating latex of the Calotropis procera plant by using a freeze-thaw cycle to stimulate the formation of granulation tissue and angiogenesis in wound healing applications. Structural analysis through Fourier transform infrared (FTIR) spectroscopy confirmed the interaction between chitosan and Calotropis procera. Latex extract containing hydrogel showed slightly higher absorption than the control during water absorption analysis. Thermogravimetric analysis showed high thermal stability of the 60:40 combination of chitosan (CS) and Calotropis procera as compared to all other treatments and controls. A fabricated scaffold application on a chick chorioallantoic membrane (CAM) showed that all hydrogels containing latex extract resulted in a significant formation of blood vessels and regeneration of cells. Overall, the formation of connective tissues and blood capillaries and healing magnitude decreased in ascending order of concentration of extract.