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  • Open Access

    ARTICLE

    Role of foliar spray of plant growth regulators in improving photosynthetic pigments and metabolites in Plantago ovata (Psyllium) under salt stress–A field appraisal

    ABDUL SAMAD1, KANVAL SHAUKAT1,*, MAHMOOD-UR-REHMAN ANSARI2, MEREEN NIZAR1, NOREEN ZAHRA3, AMBREEN NAZ4, HAFIZ MUHAMMAD WALEED IQBAL5, ALI RAZA6, VLADAN PESIC7, IVICA DJALOVIC8

    BIOCELL, Vol.47, No.3, pp. 523-532, 2023, DOI:10.32604/biocell.2023.023704

    Abstract Salinity is one of the major abiotic factors that limit the growth and productivity of plants. Foliar application of plant growth regulators (PGRs) may help plants ameliorate the negative impacts of salinity. Thus, a field experiment was conducted at the Botanical Garden University of Balochistan, Quetta, to explore the potential role of PGRs, i.e., moringa leaf extract (MLE; 10%), proline (PRO; 1 µM), salicylic acid (SA; 250 µM), and thiourea (TU; 10 mM) in ameliorating the impacts of salinity (120 mM) on Plantago ovata, an important medicinal plant. Salinity hampered plant photosynthetic pigments and metabolites but elevated oxidative parameters. However,… More >

  • Open Access

    ARTICLE

    Super Absorption Behavior of Chitosan by Freeze-Blasting in Different Alkaline Solvents

    Min Fan1,2,3*, Qiaoling Hu4

    Journal of Renewable Materials, Vol.6, No.5, pp. 457-463, 2018, DOI:10.7569/JRM.2017.634178

    Abstract The absorption behavior of chitosan in alkaline solution by freeze-blasting was studied. The influence of alkaline type, concentration, and small molecules was investigated, as well as the different roles of LiOH and NaOH in the absorption. Chitosan reached its maximum absorption rate when LiOH concentration was 4.8 wt% and NaOH 4.0 wt%, respectively. Chitosan showed better absorption capacity in LiOH solution. Urea could improve the absorption when its concentration was more than or equal to 4.0 wt%, and the improvement was greater in NaOH solution. Thiourea showed no obvious effect in LiOH solution, but showed an effect when NaOH concentration… More >

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