Mathematical approach used for the assessment of foliar application of biostimulant and fertilizers to coriander varieties (Coriandrum sativum L.)
Year: 2024
Type: article
Abstract: The biostimulants and fertilizers applied as foliar spray or directly to soil play a crucial role in enhancing the development and quality of coriander by supplying essential macro- and micro-nutrients. The ecological approach to reducing soil fertilizers prioritizes the utilization of foliar nutrients. The objective of this study was to investigate the impact of foliar applying products on the seed yield, essential oil content and composition of coriander cultivars in Central Bulgaria. The field trial was carried out on alluvial-meadow soil type in the region of Plovdiv, Central Bulgaria, in the period 2020–2022. The experiment was conducted using the approach of fractional parcels with four repetitions. Three foliar products were examined in the relevant rates: Energy 20–8–60 – 25 L ha −1 ; Fulvin 40–22 – 80 L ha −1 ; Isabion – 30 L ha −1 . The treated plants were compared to an untreated control. The tested products were applied in the end of the budding stage to five coriander varieties: Yantar, Moroccan, Mesten Drebnoploden, Thüringen and Marino. Results showed that the application of foliar products, compared to the control, led to an increase in seed yield by 4.2–9.6 % and essential oil content up to 11.8 %. Statistical analysis has demonstrated that the utilization of the Energy 20–8–60 has the most significant impact on the concentration of essential oils, while Isabion has the biggest influence on the quantity of seeds produced. The Isabion biostimulant increased the content of the main compound – β-linalool in the essential oil of Moroccan variety up to 8.9 % and Marino and Mesten Drebnoploden by 3.6 and 5.4 % respectively, compared to the control. The foliar application of Energy 20–8–60 fertilizer led to a decrease of β-linalool percentage in Marino, Moroccan, Mesten Drebnoploden and Thüringen. All studied varieties exhibited the presence of aldehyde 2E-tridecen-1-al under the impact of foliar fertilizers, whereas the untreated plants did not. • Application of foliar biostimulant, mineral and organic fertilizers changed agronomic characteristics and essential oil composition of coriander varieties. • The highest seed yield was achieved in treatment with the biostimulant Isabion in all coriander varieties. • Foliar spray of 25 L ha −1 Energy, 80 L ha −1 Fulvin and 30 L ha −1 Isabion showed positive effects on the essential oil percentage. • Aldehyde 2E-tridecen-1-al appeared among essential oil profile under the impact of foliar biostimulant, mineral and organic fertilizers.
Source: Industrial Crops and Products
Authors: Velika Kuneva, Svetlana Manhart, Vanya Delibaltova, Manol Dallev, Hristofor Kirchev, Emiliya Koycheva
Institution: Agricultural University Plovdiv
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $3,780
OpenAlex ID: W4403258257