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  • Open Access


    Allelopathic Potential and Mechanism of Rosebay Willowherb [Chamaenerion angustifolium (L.) Scop.] Demonstrated on Model Plant Lettuce

    Hailin Shi#, Shiwei Sun#, Xiaohong Liu, Jiahe Fan, Jin Wang, Ke Zhao, Wei Wang*

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 159-170, 2021, DOI:10.32604/phyton.2020.011620

    Abstract Allelopathic plants are important resources for the discovery of bioherbicides. Rosebay willowherb [Chamaenerion angustifolium (L.) Scop. syn. Epilobium angustifolium L.] widely distributes in Western Asia, Europe, and North America, and behaves as a dominant species within the community due to the production of substances that restrict growth of other plants. This study aims at investigating the allelopathic potential of rosebay willowherb by evaluation of the effects of aqueous extracts from different parts on seed germination and seedling growth in lettuce (Lactuca sativa L.), as well as measuring the accumulation of reactive oxygen species and structural analysis of root… More >

  • Open Access


    Assessment of the Contribution of Foliar Trichomes towards Allelopathy

    Waseem Mushtaq1, M.B. Siddiqui1, Hesham F. Alharby2, Khalid Rehman Hakeem2,3,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 291-301, 2020, DOI:10.32604/phyton.2020.08740

    Abstract Plant trichomes vary in their structure and cellular composition. Glandular trichomes contain a bulk of specific (secondary) metabolites of diverse nature. Trichomes are connected with various adaptive processes, which include protection against herbivores and pathogens as well. Our study investigates the allelopathic contribution of structures present on the leaf surface of Nicotiana plumbaginifolia Viv. against seedling growth of Cicer arietinum L. The infusion obtained after dipping Nicotiana leaves in Dichloromethane (DCM) for 10 seconds (s) was the most phytotoxic among all the infusions. The observed inhibition in Cicer growth was not only dependent on type of infusion but More >

  • Open Access


    Chlorination: Phytotoxicity and effects on the production and quality of Lactuca sativa var. Mantecosa grown in a closed, soil-less system

    Premuzic1 Z, HE Palmucci1, J Tamborenea1, M Nakama2

    Phyton-International Journal of Experimental Botany, Vol.76, pp. 103-117, 2007, DOI:10.32604/phyton.2007.76.103

    Abstract The addition of chlorine constitutes an economical disinfection method for closed, soil-less systems. Three quantities of sodium hypochlorite (0.55, 5.5 and 11 ppm) were applied to closed, soil-less greenhouse- grown lettuce (Lactuca sativa), to study the effect on its production (fresh weight and dry matter) and some commercial and nutritional quality factors (phytotoxicity, Vitamin C, nitrates). Sodium hypochlorite was weekly added within the nutrient solution, and the chemical properties (pH, EC and chlorides) of the recycled solution were measured. Damage to leaves was evaluated 15 days before harvest. Chlorination produced different effects regarding both production and… More >

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