Boris Ravnjak

ORCID: 0000-0002-6250-8892
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Research Areas
  • Selenium in Biological Systems
  • Plant tissue culture and regeneration
  • Plant Growth Enhancement Techniques
  • Crop Yield and Soil Fertility
  • Essential Oils and Antimicrobial Activity
  • Nanoparticles: synthesis and applications
  • Composting and Vermicomposting Techniques
  • Allelopathy and phytotoxic interactions
  • Seed Germination and Physiology
  • Regional Development and Management Studies
  • Graphene and Nanomaterials Applications
  • Phytase and its Applications
  • Potato Plant Research
  • Garlic and Onion Studies
  • Trace Elements in Health
  • Botanical Research and Applications
  • Plant Physiology and Cultivation Studies
  • Heavy Metal Exposure and Toxicity
  • Plant Reproductive Biology
  • Growth and nutrition in plants
  • Agricultural and Food Sciences
  • Food composition and properties
  • Berry genetics and cultivation research
  • Therapeutic Uses of Natural Elements
  • Metallurgy and Material Forming

University of Osijek
2019-2024

Selenium (Se) is an important micronutrient which essential for most living organisms and occurs in both organic inorganic forms the water system, soils, biomass, atmosphere. In addition to being humans animals, Se beneficial plants mostly involved antioxidant activity/response, as well a growth promoter. deficiency diet global problem, levels soils generally reflect its presence food and, thus, availability humans. participates response mechanisms of organism, heavy-metal detoxification,...

10.3390/agronomy11051015 article EN cc-by Agronomy 2021-05-20

Starch is a polysaccharide that widely used in food and other industries; therefore, due to its great potential, it attempted be maximally isolated from various foods rich starch. Commonly, potatoes are for starch production the relatively high content tubers, process itself complex includes several steps. The aim of this study was isolate characterize eight potato varieties. First, basic chemical composition samples determined, then isolation carried out under laboratory conditions. air...

10.3390/app14020909 article EN cc-by Applied Sciences 2024-01-21

Extensive and growing use of different chemical pesticides that affect both the environment human health raises a need for new more suitable methods to deal with plant pathogens. Nanotechnology has enabled materials at nanoscale exceptional functionality in economic domains including agricultural production. This study aimed evaluate antifungal potential selenium nanoparticles (SeNPs) silver (AgNPs) stabilized surface coatings characterized by charge on pathogenic fungi Macrophomina...

10.1002/ps.5735 article EN Pest Management Science 2020-01-14

Climate change poses a serious threat to agricultural production. Water deficit in soils is one of the consequences climate that has negative impact on crop growth and yield. Selenium (Se) known be involved plant defense against biotic abiotic stress through metabolic, structural, physiological activity higher plants. The aim this study was investigate response Se-biofortified soybean (Glycine max (L.) Merrill) seedlings under osmotic stress. For research, we used biofortified grain obtained...

10.3390/plants10081498 article EN cc-by Plants 2021-07-21

A stationary field experiment of a reduced soil tillage was implemented at Hypogley (Hypogleyic soils A–Gso–Gr horizon sequence) type Eastern Croatia during three seasons and set up as split-plot randomized block design in four repetitions. The systems (TS) were follows: 1) conventional tillage, i.e., plowing 30 cm (CT), 2) disking 10-12 (DT), 3) loosening to 35 (LT), 4) no-tillage (NT). designed compare the penetration resistance (PR), moisture (SM), bulk density (BD) different TSs depths....

10.18047/poljo.26.1.3 article EN cc-by-nc Poljoprivreda 2020-06-23

Pšenica je jedna od osnovnih poljoprivrednih kultura za prehranu čovjeka te se koristi u mlinarstvu, prehrambenoj i farmaceutskoj industriji. U poljoprivrednoj proizvodnji postoje razni čimbenici koji utječu na visinu prinosa, a samim time financijsku dobit, pa stoga jedan najvećih čimbenika stvaraju velike probleme priježetveno proklijavanje (PHS – preharvest sprouting). Štete koje nastaju uslijed PHS-a svijetu iznose oko 1 bilijun dolara. Ciljevi istraživanja bili su sljedeći: ispitati...

10.18047/poljo.30.1.3 article HR cc-by-nc Poljoprivreda 2024-06-20

Cilj ovoga istraživanja bio je biološkim testom i uobičajenim fizikalno-kemijskim ana-lizama utvrditi pogodnost komposta vermikomposta za upotrebu kao komponenata supstrata uzgoj presadnica četiriju različitih biljnih vrsta (kres salata — Lapidium sativum L., krastavac Cucumis sativus ječam Hordeum vulgare L. pšenoraž xTriticosecale Wittmack). Dodatni cilj hoće li se dodatkom koncentracija amonijskoga dušika (400 600 mg/L NH4-N) postići fitostimulativni ili fitotoksični učinak na istraživane...

10.18047/poljo.30.2.4 article HR cc-by-nc Poljoprivreda 2024-12-23

Garlic is valuable crop that used not only for human consumption, but also in pharmaceutical, food and cosmetics industries. Indigenous cultivars have specific beneficial properties could be permanently lost due to cultivation of new cultivars. Aim this study was established two indigenous garlic vitro under influence growth regulator light. varieties Slavonian winter (Croatia) Vincek (Slovenia) were introduced on medium supplemented with different concentrations BAP (1 1,5 mg/L) grown types...

10.5513/jcea01/24.2.3764 article EN cc-by-nd Journal of Central European Agriculture 2023-01-01

Within the nursery sector, a global interest in functional fruits imposes permanent need to improve tissue culture technology. A modern bioreactor immersion system is currently valid solution for micropropagation of many cultures. At Faculty Agrobiotechnical Sciences Osijek (FAZOS, Croatia), research was conducted with aim improving raspberry (Rubus idaeus L., cv. HimboTop®) protocol. The treatments implied modifications MS and DKW nutrient medium (DKW – standard; DKWm substitution FeEDTA...

10.18047/poljo.27.1.3 article EN cc-by-nc Poljoprivreda 2021-06-01

Leafy vegetables are a daily part of the human diet all over world. At same time, worldwide problem Se malnutrition is present in populations, mostly due to low soil contents. As plants represent main source this element diet, with being an essential trace for humans and animals, plant foods containing can be used as efficient means increasing well animal feed (biofortification). production growing media relies on limited peat reserves. The use earthworms facilitates composted organic masses...

10.3390/agriculture11111072 article EN cc-by Agriculture 2021-10-30

Cilj ovog istraživanja je bio utvrditi utjecaj tretmana Rivergreen-om® na rast i razvoj presadnica salate endivije u kontroliranim uvjetima. Rivergreen® pripravak nastao mljevenjem tribomehaničkom aktivacijom kamena iz rijeke Drave. Istraživanje provedeno laboratoriju za povrćarstvo, cvjećarstvo ljekovito bilje Fakultetu agrobiotehničkih znanosti Osijek. Korištene su dvije sorte ('Majska kraljica' 'Ljubljanska ledenka') te ('Eskariol žuta' 'Eskariol zelena'). Sjeme posijano polisitrenske...

10.31727/gzb.42.4.4 article HR cc-by-nc-nd Glasnik zaštite bilja 2019-07-28
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