Faculty of Agricultural Sciences and Food

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Author: search.filters.author.Emina Mladenović

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    EFFECT OF WATER EXTRACT OF ALOE VERA ON GERMINATION AND EARLY GROWTH OF DIANTHUS BARBATUS
    (Ss Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food - Skopje, 2022)
    Svjetlana Zeljković
    ;
    Lidija Milojević
    ;
    Emina Mladenović
    ;
    Margarita Davitkovska
    ;
    Zvezda Bogevska
    The Sweet William - Dianthus barbatus (L.) is a plant from Caryophyllaceae family. The germination and growth of the plant are important phenological stages, and plant survival depends on them. The seed that has better germination energy also has better vigor, so it is more resistant to stressful conditions during germination. The aim of this study was to examine the possibilities and effectiveness of water extracts of plant species Aloe vera on the seed germination and early growth of Sweet William seedlings - Dianthus barbatus (L.). The experiment was conducted in laboratory conditions at the Faculty of Agriculture, University of Banja Luka and consisted of control (distilled water) and treatment with water extract of Aloe vera. Water extracts were prepared from fresh leaves and experiments were conducted in Petri dishes at 5, 10, and 15%. The temperature in the laboratory was constant at 20°C and the light regime was set to 16h day/8h night. Water extracts of Aloe vera at a concentration of 5% had a positive effect on the seed germination and germination energy, while a concentration of 15% had a positive effect on shoot and root length, and fresh mass of Dianthus barbatus seedlings.
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    Influence of Microbiological Preparation Bacillomix on the Germination of Challistephus chinensis L.
    (University of Banja Luka Faculty of Agriculture University City Bulevar vojvode Petra Bojovića 1A 78000 Banja Luka, Republic of Srpska, B&H, 2023)
    Svjetlana Zeljković
    ;
    Marina Pekez
    ;
    Jelena Davidović Gidas
    ;
    Margarita Davitkovska
    ;
    Emina Mladenović
    The use of biostimulant create better conditions for the growth and development of the germ and germination. Bacillomix is 100% natural biostimulant and soil improver with increased content of live bacterial cells obtained from 12 powerful Bacillus sp. strains. The use of this preparation has many positive effects: stimulate of germination, rooting and growth of plants; improve the microbiological structure of the soil; keep the plants healthy through the growing season; increases the plants resistant to stress; supplies the plant with nitrogen, phosphorus, potassium and sulfur. The aim of this study was to examine the impact of microbiological preparation Bacillomix on the germination and germination energy of the seeds Challistephus chinensis L. In the experiment were totally 480 seeds of this species. The experiment was set up in the laboratory on Faculty of Agriculture, University of Banja Luka and consisted of control (K) and treatment with microbiological preparation Bacillomix in two concentrations (T1 100% and T2 10%). After 7 days germination energy and after 14 days germination of the seeds were tested. The highest average values of the germination energy were recorded in the treatment plants (73.75% T1, 64.38% T2), while the lowest values were recorded in control plants (60%). The highest average germination values were also recorded in treatment (78.755% T1, 73.75% T2), and the lowest in the control group (70%). The highest average values of hypocotyl height, root length and fresh weight were recorded also in the treatment plants (1.47 cm T1 and 1.01 cm T2; 4.59 cm T1 and 3.28 cm T2; 0.91 g T1 and 0.65 g T2) while the lowest values were recorded in control plants (0.99 cm; 2.87 cm; 0.61 g). It can be concluded that the use of a natural biostimulant is recommended for better germination and better morphological development of plants.