Browsing by Author "Babić, Snežana"
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Item An overview of the flora of the special nature reserve "Osredak" a decade upon the completion of the conservation study(Centre for Evaluation in Education and Science (CEON/CEES), 2022-01-25) Petrović, Mirjana; Prijović, Mladen; Živković-Antić, Ivana; Stojanović, Verica; Vymyslický, Tomaš; Stepić, Marija; Babić, Snežana; Sokolović, DejanSince 2020, the "Osredak" Special Nature Reserve has been a protected natural area of the Republic of Serbia, of regional, i.e. great importance. It is situated in central Serbia, along both banks of the West Morava. The area was designated as protected in order to conserve the bog habitats of the Morava River valley, as well as old bayous, ponds and lakes, which were created by decades of gravel extraction. The public-utility company "Kruševac" manages this area, and at its request, cooperation was established with the Istitute for fodder crops Kruševac in order to update the Reserve's flora inventory, with an emphasis on protected plant species, but also on invasive alien species. A list of all plant taxa that have been recorded in the Reserve so far (169 species) and specific solutions that might contribute to the conservation and improvement of natural values of the "Osredak" special nature reserve have also been included in this paper.Item ANTIFUNGAL ACTIVITY OF RHIZOBIA AGAINST RED CLOVER PATHOGENS FROM GENUS FUSARIUM(University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia University of Belgrade, Faculty of Agriculture, Serbia Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy, 2023-10-05) Bekčić, Filip; Duduk, Natasa; Lugić, Zoran; Radović, Jasmina; Babić, Snežana; Stepić, Marija; Andjelković, SnežanaRed clover (Trifolium pratense L.) is an important forage legume that can be found in nature or as cultivated crop in monoculture or in grass-legume mixtures. The great importance of red clover is the fact that it lives in symbiosis with Rhizobium leguminosarum bv. trifoli. In addition to promoting plant growth, productivity and biomass, the bacteria also have an important role in disease control. Apart from useful microorganisms, many soil pathogenic microorganisms inhabit red clover roots and under favorable conditions they cause infections and diseases of the cultivated plants. On the infected red clover plants Fusarium spp. can cause several symptoms: vascular wilt on older plants, dumping of seedlings, root rot, rot of root base and crown rot. In the present study, the antagonistic potential was evaluated for two bacteria isolates preliminarily determined as R. leguminosarum bv. trifoli (CD1 and CD6) against three isolates Fusarium spp. (G1, G2 and G3) who were obtained from the roots of symptomatic red clover plants. The research was performed in in vitro agar plate (PDA medium) by methods of dual culture (“bacterial ring”). The comparison of growth assessment of fungi after they were grown together with rhizobia in a single plate and growth of fungi in individual plates was performed. Both rhizobia isolates showed significant antifungal activity against all the tested phytopathogenic fungi. Growth inhibition of G1, G2 and G3 was evaluated (%) using both rhizobia isolates, CD1 varied from 30 to 43 % and CD6 from 14 to 32 %.Item Biomass and Protein Yields of Field Peas and Oats Intercrop Affected by Sowing Norms and Nitrogen Fertilizer at Two Different Stages of Growth(MDPI AG, 2021-09-10) Krga; Simić, Aleksandar; Željko, Dželetović; Babić, Snežana; Katanski, Snežana; Roljević Nikolić, Svetlana; Damnjanović, JelenaIn limited growing conditions, intercropped field peas and oats can represent a significant source of forage rich in protein. If applied correctly, factors such as nitrogen fertilizer, the mowing phase, and sowing norms can significantly increase the productivity of these mixtures. Field trials were conducted to examine their productivity under different nitrogen levels (0, 40, 80 kg ha−1), different sowing norms/mixtures (field peas: oats—100:15%; 100:30%), and two stages of growth (full flowering, full pod formation). Nitrogen fertilizer and different sowing norms had a significant effect on the biomass, hay, and crude protein yields. On average, the highest hay yields were achieved with 80 kg ha−1 N (4.96 t ha−1), followed by 40 kg ha−1 N (4.27 t ha−1). The highest protein yields were achieved with 40 kg ha−1 N (CP—704.1 kg ha−1), followed by 80 kg ha−1 N (CP—637.6 kg ha−1). Sowing norm 100:30% achieved higher hay yields: 100:30%—4.82 t ha−1; 100:15%—4.44 t ha−1, while 100:15% achieved higher crude protein yields: 100:15%—730.4 kg ha−1; 100:30%—692.7 kg ha−1 on average. The costs were not significantly increased with the nitrogen fertilizer, but the net profits were increased by as much as 163%, depending on the nitrogen level and the mixture. Nitrogen fertilizer also achieves higher economic efficiency for the mixture 100:15% compared to the 100:30% mixture. Mixtures of field peas and oats outperform single-grown crops and provide cost-effective feed for a short time. Using optimal seed ratios and nitrogen fertilizer can significantly increase the productivity and profitability of the feed with minimal impact on the overall production costs.Item EFFECT OF AZOTOBACTER SPP. ON INITIAL GROWTH OF GRASSES(University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia University of Belgrade, Faculty of Agriculture, Serbia Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy, 2023-10-05) Andjelković, Snežana; Sokolović, Dejan; Lugić, Zoran; Jevtić, Goran; Radović, Jasmina; Milenković, Jasmina; Babić, SnežanaThe composition of the microbial community in rhizosphere can affect plant growth, nutrients uptake, and stress tolerance. In rhizosphere bacteria belonging to the genus Azotobacter there are free nitrogen-fixers promoting growth and health of plants. The aim of this research was to investigate the effect of different native isolates (SA74, SB94, MA7 and their combination) Azotobacter spp. on initial growth of plants tall fescue (Festuca arundinacea Scherb) and meadow fescue (Festuca pratensis Huds). The experiment was carried out in semi-controlled conditions. For this study, seeds of tall fescue cultivar Kruševački 20 (K-20) and meadow fescue cultivar Kruševački 21 (K-21) were planted in pots filled with alluvial soil with slightly acidic reaction. The height, green mass per plant, root length and root weight per plant were determined. Four variants of microbial inoculation were compared with the growth of non-inoculated control. The significance of difference between examined treatments was determined by Fisher’s LSD test (p<0.05). At tall fescue, applied isolate SB94 in all investigated parameters had a negative effect. The two other isolates as well as combination of three isolates had a positive effect on initial growth of plants. Only in plant height, the application of a combination of isolates did not have positive result compared to the control. At meadow fescue, inoculation with combined isolates positively influenced plant height andgreen mass per plant. Root length was significantly increased only in treatment with isolate MA7. The influence of inoculation on root weight per plant was not noted.Item Fertility and chemical composition of forest soils covered with Allium ursinum L. In Serbia(Parlar Scientific Publications, 2022-04) Željko, Dželetović; Simić, Aleksandar; Marković, Jordan; Andrejić, Gordana; Denader, Tijana; Babić, SnežanaA. ursinum is a wild growing species, which is often found on various localities throughout Serbia, primarily within forest and occasionally on meadow. Fresh picked leaves and bulbs are used for preparing a salad or meals. For this research we have collected and analyzed soil and plant material from 12 different locations in Serbia. The analyses of basic fertility of soils have shown that A. ursinum grows mainly on acidic and soils containing high percentage of humus, with high total nitrogen content, low to medium supplies in available phosphorus and high supplies in available potassium. In those soils there is a very strong correlation between the total N content and total organic C (0.931). There is a relatively wide range of concentrations of overall Cd, Co, Cr, Cu, Ni, Pb and Zn in soils on which A. ursinum grows. The translocation factor for A. ursinum is TF ≥1 has been calculated for Cd, Pb and Zn.Item Heritability and variability of the most important traits of meadow fescue synthetic cultivars(Agricultural Research Ltd. Troubsko, Czech Republic, 2023-09-10) Babić, Snežana; Radović, Jasmina; Andjelković, Snežana; Petrović, Mirjana; Jevtić, Goran; Prijović, Mladen; Sokolović, DejanMeadow fescue (Festuca pratensis Huds.) is one of the most important perennial grasses for animal feed production on grasslands. It is characterized by high and stable yield potential and good biomass quality. The aim of this study was to determine the broad and narrow sense heritability and genetic (CVG%) and phenotypic (CVF%) coefficient of variation of the most important traits of two synthetic cultivars (Kruševački 21 and Pradel).Item INSTITUT ZA KRMNO BILJE, KRUŠEVAC, 140 GODINA U SLUŽBI RAZVOJA POLJOPRIVREDE(Centar za strna žita i razvoj sela Kragujevac, 2023-06-22) Lugić, Zoran; Sokolović, Dejan; Radović, Jasmina; Babić, Snežana; Milenković, Jasmina; Andjelković, SnežanaInstitut za krmno bilje u Kruševcu je akreditovani istraživačko razvojni institut. Formiran je 1884. godine, kao Ugledno dobro i vrt, koje je imalo za cilj unapređenje ukupne poljoprivredne proizvodnje. Od 1959. godine, bavi se isključivo istraživanjem krmnog bilja. Glavna istraživanja u Institutu su proučavanje i očuvanje postojećih genetičkih resursa, unapređenje genetičkog potencijala krmnih biljaka, tehnologija proizvodnje i konzervisanja krmnog bilja na oranicama i travnjacima, a sve u cilju unapređenja stočarske proivodnje. Do sada je u Institutu stvoreno preko 40 novih sorti krmnih vrsta. U poslednjih deset godina odbranjeno je 8 doktorskih disertacija, objavljeno preko 250 naučnih radova i saopštenja, a istraživači Instituta su učestvovali, pored nacionalnih i u međunarodnim projektima (EUREKA, TEMPUS, HORISON), što ukazuje da institut ima značajno mesto u domaćoj i međunarodnoj naučnoj zajednici. U saradnji sa Ministarstvom poljoprivrede i lokalnim samoupravama, realizovani su projekti navelikom broju gazdinstava, čiji je cilj primena dobijenih rezultata istraživanja u praksu. Dugogodišnja tradicija, iskustvo i dosadašnji rezultati čine da je Institut ustanova koja je i dalje u službi razvoja poljoprivrede, kojoj poljoprivredni prozvođači veruju.Item Isoflavones of the red and Hungarian clover and possible impact on animal diet(Czech Academy of Agricultural Sciences, 2021-06-29) Petrović, Mirjana; Sokolović, Dejan ; Babić, Snežana; Vymyslický; Marković, Jordan; Zornic, Vladimir; Dajić-StevanovićItem Morpho-biochemical response perennial ryegrass (Lolium perenne L.) populations to water shortage(Palacký University Olomouc, 2023-09-10) Prijović, Mladen; Sokolović, Dejan; Babić, Snežana; Petrović, Mirjana; Stepić, Marija; Lazarević, Đorđe; Sabovljević, AnetaDrought is one of the most significant effects of global climate change. It is expected to be more intense in some parts of southern Europe and the Balkan Peninsula in the next decade. Drought stress is the most important restriction factor for food and feed productivity. Perennial ryegrass (Lolium perenne L.) forms the basis of grassland production in temperate pastures and represents one of the most important forage grasses globally.Item NPK FERTILIZER ADDITION EFFECT ON NARDUS STRICTA TYPE GRASSLAND IN KOPAONIK MOUNTINE(Faculty of Agronomy in Čačak, University of Kragujevac,, 2023-03-17) Zornic, Vladimir; Petrović, Mirjana; Babić, Snežana; Lazarević, Đorđe; Djurovic, V; Sokolović, Dejan; Tomić, DaliborThis study examines how the addition of NPK fertilizers impacts the change in Nardus stricta type grasslands. The investigation was carried out on the mountain Kopaonik between 2009 and 2012. The effects of four fertilizing treatments: control; N60 (N60P60K60); N90 (N90P60K60); N120 (N120P60K60) on plant species composition, Shannon evenness, and EGQ (evaluation grassland quality index) were researched. The control treatment was dominated by Nardus stricta species, while Festuca rubra and Agrostis capillaris presence was a feature of fertilizing treatments. The highest nitrogen intake (N120) had Shannon evenness that was very similar to that of the control. All fertilizing treatments resulted in increasing forage value.Item OPLEMENJIVANJE VIŠEGODIŠNJIH TRAVA U SRBIJI(Centar za strna žita i razvoj sela Kragujevac, 2023-06-22) Babić, Snežana; Sokolović, Dejan; Radović, Jasmina; Andjelković, Snežana; Petrović, Mirjana; Jevtić, Goran; Prijović, MladenVišegodišnje trave kao baza održivog stočarstva i industrije stočne hrane, predstavljaju osnovnu hranu preživara u oblastima umerenog klimata. Kao komponente prirodnih i sejanih travnjaka koriste se putem ispaše, kosidbe, senaže i silaže. Najvažnije vrste za stočnu hranu su: ježevica, engleski ljulj, livadski vijuk, visoki vijuk, mačji rep, italijanski ljulj, francuski ljulj, crveni vijuk i bezosni vlasen. Genotip, odnosno sorta u prinosu višegodišnjih trava učestvuje i više od 50%. Najbitniji preduslov uspešnog oplemenjivanja je visok stepen genetičke varijabilnosti u početnom oplemenjivačkom materijalu. Osnovne osobine na koje se vrši selekcija su prinos i kvalitet suve materije, vreme stasavanja, perzistentnost i tolerancija na sušu i prinos semena. Najčešće korišćena metoda oplemenjivanja je fenotipska rekurentna selekcija, modifikovana u cilju skraćenja ciklusa selekcije i redukcije nepoželjnih ukrštanja, praćena polikros metodom ukrštanja i formiranjem sintetičke sorte. Dugogodišnjim oplemenjivačkim radom u Institutu za krmno bilje Kruševac je stvorena 21 krmna i 1 parkovska sorta višegodišnjih trava.Item Quality Parameters and Antioxidant Activity of Three Clover Species in Relation to the Livestock Diet(University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 2016-06-14) Petrović, Mirjana; Stanković, Milan; Anđelković, Bojan; Babić, Snežana; Zornic, Vladimir; Vasiljević, Sanja; Dajic Stevanovic, ZoraProducts of metabolism that are directly involved in growth, development and reproduction and also secondary products of metabolism were studied in 16 natural populations of three species of the genus Trifolium (T. repens – four populations, T. alpestre – three populations, T. pannonicum – nine populations), collected from the central Balkans region, i.e. territory of Serbia. Statistical analysis showed the presence of variability in all species of the test material. The best quality of dry matter, estimated by the ratio of crude protein and crude fiber, was achieved in the populations of white clover. In this species, average protein content was 216.4 g kg-1 while the average content of crude fiber was 222.4 g kg-1. The highest average content of total phenols (77.9 mg GA g-1), flavonoids (159.7 mg Ru g-1) and antioxidant activity (70.2 μg ml-1) was measured in populations of T. pannonicum by phytochemical analysis of aerial parts of plants. The content of secondary metabolites and antioxidant activity in other species were extremely low. Populations of T. pannonicum were notable for fodder quality and antioxidant activity: CS091 with 186.2 g kg-1 of crude protein and antioxidant activity of 55 μg ml-1; RA123 with 175.6 g kg-1 of crude protein and a high level of antioxidant activity of 44.8 μg ml-1. It can be concluded that the selection of these populations may lead to creation of different varieties of fodder crops that could give safe animal feed and would be suitable for growing under adverse conditions of mountainous climate.Item SEMENARSTVO VIŠEGODIŠNJIH TRAVA – TRENDOVI U OPLEMENJIVANJU(Društvo genetičara Srbije, Beograd, 2023-10-16) Babić, Snežana; Sokolović, Dejan; Lugić, Zoran; Radović, JasminaVišegodišnje trave predstavljaju kompleksnu i raznovrsnu grupu monokotiledonih biljaka koje žive širom planete, u različitim agroekološkim uslovima. Njihov agronomski značaj je posebno izražen usled činjenice da mogu uspevati na većim nadmorskim visinama gde se druge kulture ne mogu uspešno gajiti. One čine osnovnu hranu preživara u oblastima umerenog klimata kao komponente prirodnih i sejanih travnjaka i mogu se koristiti putem ispaše ili kosidbe u obliku sena, senaže ili silaže. Oplemenjivanje višegodošnjih trava se u Srbiji obavlja od polovine 20. veka, a Institut za krmno bilje Kruševac je jedina naučna institucija ukojoj se vrši oplemenjivanje ove grupe biljaka u Srbiji.Item THE INFLUENCE OF ALTITUDE ON THE QUALITY OF HONEY IN CENTRAL SERBIA(University of East Sarajevo, Faculty of Agriculture, Republic of Srpska, Bosnia University of Belgrade, Faculty of Agriculture, Serbia Mediterranean Agronomic Institute of Bari (CIHEAM - IAMB) Italy, 2023-10-05) Jevtić, Goran; Babić, Snežana; Andjelković, Snežana; Lazarević, Đorđe; Petrović, Mirjana; Matović, K; Nedić, NThe paper analyzed acacia, meadow and forest honey (honeydew) from Central Serbia. The parameters of honey quality were determined according to the methods of the Rulebook on the quality of honey and other bee products (Official Gazette of RS, 2015). Total nitrogen was determined by the micro-Kjeldahl method, and potassium and trace elements were determined by the AAS-method. In the case of acacia honey, the acidity and amount of mineral substances (ash) increase with the increase in altitude, while the amount of sugar (total, reducing and saccharose) and water decreases. The increase in altitude also had an impact on the quality parameters of meadow honey. With the increase in altitude, the amount of mineral substances and water in this honey increases, while the total sugars and sucrose decrease. The amount of analyzed macro and micro elements in meadow honey increased with altitude, with the exception of zinc (Zn). Honeydew from the hill area had the most ash and the lowest values for other parameters. In this honey, all minerals reach their maximum in the hilly area, and decrease in the plain and mountainous area. The exception is zinc (Zn), which is most abundant in honey from the plains. All analyzed honeys met the conditions prescribed by the Rulebook on the quality of honey (Serbia) and the Directives on the quality of honey in the European Union.Item The influence of lead acetate and actinomycetes on germination and growth of vetch plant (Vicia sativa L.)(Agricultural Research Communication Center, 2018-10-10) Trajkovic; Kostic; Jaksic, Tatjana; Vasic, Tanja; Andjelković, Snežana; Babić, Snežana; Stamenov, DraganaThe influence of different lead acetate concentrations (10 -5 M, 10 -4 M, 10 -3 M, 10 -2 M and 2 x 10 -2 M) both with and without presence of actinomycetes on germination and initial growth (root, leaf length and stem height) of vetch plant (Vicia sativa L.) was rated. Different lead acetate concentrations and actinomycetes (Streptomyces sp.) of 5, 7 and 9 breed’s types were used to treat vetch plant seeds. It was perceived that high lead acetate concentration of 2 x 10 -2 M has inhibitory effect on the studied parameters. Probes with the highest concentrations of lead with the presence of actinomycetes as much as 60% more seeds germinated compared to the probes without actinomycetes. Low lead acetate concentrations have stimulating effect on these processes, as applied in the presence of microorganisms, and in probes without inoculation.Item UTICAJ AZOTOBACTER SPP. NA POČETNI RAST I RAZVOJ VIŠEGODIŠNJIH TRAVA(Institut za povrtarstvo Smederevska Palanka, 2023-11-02) Andjelković, Snežana; Sokolović, Dejan; Jevtić, Goran; Prijović, Mladen; Bekčić, Filip; Milenković, Jasmina; Babić, SnežanaPrimena korisnih mikroorganizama, kao što su bakterije iz roda Azotobacter, predstavlja ekološki prihvatljiv metod za unapređenje proizvodnje krmnih trava i biogenosti zemljišta. U radu su prikazani rezultati primene predsetvene mikrobijalne inokulacije. Ispitivan je uticaj četiri izolata Azotobacter spp. (ZA1, SA74, SB94, MA7) i njihove kombinacije na početni rast višegodišnjih trava: engleskog ljulja (Lolium perenne L.), francuskog ljulja (Arrhenatherum elatius L.), italijanskog ljulja (Lolium multiflorum L.) i ježevice (Dactylis glomerata L.). Eksperiment je izveden u polukontrolisanim uslovima. Visina, zelena masa po biljci, dužina i masa korena po biljci određene su četiri nedelje nakon setve. Rezultati istraživanja pokazali su da je primena mikrobne inokulacije imala pozitivan efekat na početni rast i razvoj ispitivanih vrsta trava.Item Variability of Meadow Fescue Accessions and Productivity and Quality of their Polycross Progenies(Institutul Național de Cercetare Dezvoltare Agricolă Fundulea, 2023) Babić, Snežana; Sokolović, Dejan; Radović, Jasmina; Andjelković, Snežana; Lugić, Zoran; Petrović, Mirjana; Zornic, VladimirThe collection investigated included nineteen meadow fescue accessions, 16 wild populations, and 3 commercial cultivars. The first part of the experiment was performed in a plant nursery at a distance plant of plant 60x60 cm. The experiment was done as a randomized block design with 30 plants per accession. This part of the experiment aimed to determine values and variability for the studied traits (heading date, plant height, length of leaf and the number of generative and vegetative tillers per plant and dry matter yield per plant) in two productive years. Data processing was done by ANOVA analyses. The obtained results show that the studied accessions had significant within and among variability for all parameters. The number of generative tillers per plant, plant height and leaf length positively affected dry matter yield per plant. The highest dry matter yield per plant was observed for accessions: FP 1 and FP 4, but the best ratio between dry matter yield and number of vegetative tillers per plant, traits that influenced dry matter quality, was scored for accessions FP 8, FP 7, FP 3, FP 10 and FP 16. The second part of the trial investigated the productivity and biomass quality of the best 26 progenies selected from the polycross field and formed from the plant with the best performance from the nursery. They are tested in plots 5x2 m, as a randomized block design, in 3 replications. The most productive progenies with high biomass quality originated from accession FP 8, FP 3 and FP 13.Item ZASTUPLJENOST MIKROORGANIZAMA U ZEMLJIŠTU TRAVNJAKA NA TERITORIJI OPŠTINE SJENICA(Centar za strna žita i razvoj sela Kragujevac, 2023-06-22) Andjelković, Snežana; Babić, Snežana; Sokolović, Dejan; Jevtić, Goran; Milenković, Jasmina; Petrović, Mirjana; Zornic, VladimirMikroorganizmi, kao biološka komponenta, dobri su pokazatelji kvaliteta zemljišta jer brzo reaguju na promene u zemljišnom ekosistemu, pa se mikrobiološka aktivnost može koristiti za određivanje plodnosti zemljišta. Cilj ovog rada bio je da se ispitaju mikrobiološka i osnovna hemijska svojstva zemljišta prirodnih travnjaka na teritoriji opštine Sjenica. Uzorci zemljišta sa 28 travnjaka (16 livada i 12 pašnjaka) uzeti su aseptično sa dubine od 0-25 cm. Proučavane uzorke zemljišta karakteriše relativno nizak pH i srednji sadržaj humusa. Ukupan broj mikroorganizama u uzorcima zemljišta varirao je od 7,253 do 8,072, broj ukupnih slobodnih azotofiksatora od 6,235 do 6,934 i gljiva od 4,464 do 5,501 (log broja) po gramu apsolutno suvog zemljišta. Nije zabeležena povezanost brojnosti ispitivanih grupa mikroorganizama sa načinom iskorišćavanja travnjaka.Item Багремац (Amorpha fruticosa L.) страна инвазивна врста на простору Специјалног резервата природе „Осредак”(Српско биолошко друштво „Стеван Јаковљевић” Крагујевац, 2023, 2023-09-20) Petrović, Mirjana; Prijović, Mladen; Stepić, Marija; Andjelković, Snežana; Babić, Snežana; Zornic, Vladimir; Sokolović, DejanСпецијални резерват природе „Осредак” је подручје од 250 ha површине које се простире на обе обале Западне Мораве, захватајући примарно атаре села Кукљин и Бела Вода тј. простор општина Крушевац и Трстеник. Овај простор је стављен под заштиту 2020. године Уредбом владе и управа је додељена ЈКП „Крушевац”. За потребе мониторинга биљних врста ангажовани су истраживачи Института за крмно биље Крушевац. Мониторинг се обавља од 2021. године у континуитету до сада и обухватао је сагледавање стања свих вегетацијских целина унутар резервата као и праћење заштићених и инвазиних врста.