Field-Scale Evaluation of Botanical Extracts Effect on the Yield, Chemical Composition and Antioxidant Activity of Celeriac (Apium graveolens L. Var. rapaceum)
Katarzyna Godlewska , Paweł Pacyga , Izabela Michalak , Anita Biesiada , Antoni Szumny , Natalia Pachura , Urszula Piszcz
AbstractThe use of higher plants for the production of plant growth biostimulants is receiving increased attention among scientists, farmers, investors, consumers and regulators. The aim of the present study was to examine the possibility of converting plants commonly occurring in Europe (St. John’s wort, giant goldenrod, common dandelion, red clover, nettle, valerian) into valuable and easy to use bio-products. The biostimulating activity of botanical extracts and their effect on the chemical composition of celeriac were identified. Plant-based extracts, obtained by ultrasound-assisted extraction and mechanical homogenisation, were tested in field trials. It was found that the obtained formulations increased the total yield of leaves rosettes and roots, the dry weight of leaves rosettes and roots, the content of chlorophyll a + b and carotenoids, the greenness index of leaves, the content of vitamin C in leaves and roots. They mostly decreased the content of polyphenols and antioxidant activities in leaves but increased them in roots and conversely affected the nitrates content. Extracts showed a varied impact on the content of micro and macroelements, as well as the composition of volatile compounds and fatty acids in the celeriac biomass. Due to the modulatory properties of the tested products, they may be used successfully in sustainable horticulture.
|Journal series||Molecules, ISSN 1420-3049, (N/A 100 pkt)|
|Publication size in sheets||2.75|
|Keywords in English||higher plants; biostimulants; ultrasound assisted extraction; homogenisation; foliar spray; celeriac|
|License||Journal (articles only); published final; ; with publication|
|Score||= 100.0, 22-04-2021, ArticleFromJournal|
|Publication indicators||= 0; = 0; : 2017 = 1.146; : 2018 = 3.06 (2) - 2018=3.38 (5)|
|Citation count*||1 (2021-05-15)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.