Valtcho D Zheljazkov (Valtcho Zheljazkov)

ORCID

Publication Activity (10 Years)

Years Active: 2018-2024
Publications (10 Years): 53

Top Venues

Plants (Basel, Switzerland)

Molecules (Basel, Switzerland)

PloS one

Chemistry & biodiversity

Oregon State University

University of Massachusetts Amherst (PHD)

This page only lists publications with an associated author ORCID identifier.

Affiliation History

Oregon State University Jan 03 2014

United States

Associate professor :: Plant and Soil Science

University of Wyoming Jan 01 2010 - Nov 30 2014

United States

Associate professor & Director :: Sheridan Research and Extension Center

Mississippi State University Oct 01 2005 - Dec 31 2010

United States

Assistant and Associate Professor :: North Mississippi Research and Extension Center, Verona, MS

Nova Scotia Agricultural College /Dalhousie University Jan 01 2000 - Oct 30 2005

Canada

Research Professor and Chair in Cropping Systems :: Plant and Animal Sciences

Agricultural University Plovdiv Sep 01 1988

Bulgaria

Assistant professor and Docent :: Crop Production

Education History

University of Massachusetts Amherst Jan 09 1997 - May 26 2001

United States

PHD :: Plant and Soil

Agricultural University Plovdiv Feb 28 1985 - May 26 1988

Bulgaria

PHD :: Crop Production

Publications

Nemanja Rajčević, Tanja Dodoš, Smiljana Janković, Jelica Novaković, Valtcho D Zheljazkov, Ivanka B Semerdjieva, Petar D Marin
Phytochemistry and Micromorphology of Epicuticular Waxes in Four Juniper Species With Fragmented Distribution in the Balkans. Chemistry & biodiversity 21 (2) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PloS one 19 (2) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PloS one 19 (2) (2024)
Nemanja Rajčević, Tanja Dodoš, Smiljana Janković, Jelica Novaković, Valtcho D Zheljazkov, Ivanka B Semerdjieva, Petar D Marin
Phytochemistry and Micromorphology of Epicuticular Waxes in Four Juniper Species With Fragmented Distribution in the Balkans. Chemistry & biodiversity 21 (2) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PloS one 19 (2) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PloS one 19 (2) (2024)
Tzenka Radoukova, Ivanka B Semerdjieva, Valtcho D Zheljazkov
A Comparative Morphological and Anatomical Study of Juniperus communis L., J. sibirica Burgsd., and J. pygmaea K. Koch from Bulgaria. Plants (Basel, Switzerland) 13 (17) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Chemical profile of Juniperus excelsa M. Bieb. essential oil within and between populations and its weed seed suppression effect. PloS one 19 (2) (2024)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla N Dincheva, Neshka Piperkova, Vasilina Maneva, Charles L Cantrell, Tessema Astatkie, Albena Stoyanova, Tanya Ivanova
Essential Oil Composition of Seven Bulgarian Hypericum Species and Its Potential as a Biopesticide. Plants (Basel, Switzerland) 12 (4) (2023)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla N Dincheva, Neshka Piperkova, Vasilina Maneva, Charles L Cantrell, Tessema Astatkie, Albena Stoyanova, Tanya Ivanova
Essential Oil Composition of Seven Bulgarian Hypericum Species and Its Potential as a Biopesticide. Plants (Basel, Switzerland) 12 (4) (2023)
Ivanka B Semerdjieva, Elina Yankova-Tsvetkova, Valtcho D Zheljazkov, Lyubka H Koleva-Valkova, Rozalia Nikolova
Reproductive Capacity and Scanning Electron Microscopy (SEM) Analyses of the Micromorphological Surfaces of Three Endemic Satureja Species from Bulgaria. Plants (Basel, Switzerland) 12 (13) (2023)
Nemanja Rajčević, Tanja Dodoš, Smiljana Janković, Jelica Novaković, Valtcho D Zheljazkov, Ivanka B Semerdjieva, Petar D Marin
Phytochemistry and Micromorphology of Epicuticular Waxes in Four Juniper Species With Fragmented Distribution in the Balkans. Chemistry & biodiversity (2023)
Valtcho D Zheljazkov, Ivanka B Semerdjieva, Daniela Borisova, Elina Yankova-Tsvetkova, Lyubka H Koleva-Valkova, Galya Petrova, Ivayla Dincheva, Fred Stevens, Wenbin Wu, Tess Astatkie, Tanya Ivanova, Albena Stoyanova, Anatoli Dzhurmanski
Phytochemical and biological investigations on Centranthus kellereri (Stoj., Stef. & T. Georgiev) Stoj. & Stef. and C. ruber (L.) DC. and their potential as new medicinal and ornamental plants. PloS one 18 (11) (2023)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla N Dincheva, Neshka Piperkova, Vasilina Maneva, Charles L Cantrell, Tessema Astatkie, Albena Stoyanova, Tanya Ivanova
Essential Oil Composition of Seven Bulgarian Hypericum Species and Its Potential as a Biopesticide. Plants (Basel, Switzerland) 12 (4) (2023)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Ivayla N Dincheva, Neshka Piperkova, Vasilina Maneva, Charles L Cantrell, Tessema Astatkie, Albena Stoyanova, Tanya Ivanova
Essential Oil Composition of Seven Bulgarian Hypericum Species and Its Potential as a Biopesticide. Plants (Basel, Switzerland) 12 (4) (2023)
Milica Aćimović, Jelena Vulić, Vanja Travičić, Lato L Pezo, Valtcho D Zheljazkov, Jovana Ljujić, Ana Tomić, Gordana Ćetković, Jasna Čanadanović-Brunet, Ana Miljković, Ljubodrag Vujisić
Chemical Composition, Antioxidant, and Antimicrobial Activity of Dracocephalum moldavica L. Essential Oil and Hydrolate. Plants (Basel, Switzerland) 11 (7) (2022)
Valtcho D Zheljazkov, Giuseppe Micalizzi, Solomon Yilma, Charles L Cantrell, Amber Reichley, Luigi Mondello, Ivanka Semerdjieva, Tzenka Radoukova
Melissa officinalis L. as a Sprout Suppressor in Solanum tuberosum L. and an Alternative to Synthetic Pesticides. Journal of agricultural and food chemistry 70 (44) (2022)
Milena Nikolova, Ina Yosifova Aneva, Petar Zhelev, Ivanka B Semerdjieva, Valtcho D Zheljazkov, Vladimir Vladimirov, Stoyan Stoyanov, Strahil Berkov, Elina Yankova-Tsvetkova
Metabolic Profiles, Genetic Diversity, and Genome Size of Bulgarian Population of Alkanna tinctoria . Plants (Basel, Switzerland) 12 (1) (2022)
Valtcho D Zheljazkov, Charles L Cantrell, Ekaterina A Jeliazkova, Tessema Astatkie, Vicki Schlegel
Essential Oil Yield, Composition, and Bioactivity of Sagebrush Species in the Bighorn Mountains. Plants (Basel, Switzerland) 11 (9) (2022)
Eugenia Mazzara, Riccardo Carletti, Riccardo Petrelli, Ahmed M Abdulfattah, Giovanni Caprioli, Dennis Fiorini, Serena Scortichini, Abdolmajid Fata, Stefania Sut, Sonia Nuñez, Victor López, Valtcho D Zheljazkov, Giulia Bonacucina, Filippo Maggi, Marco Cespi
Green extraction of hemp (Cannabis sativa L.) using microwave method for recovery of three valuable fractions (essential oil, phenolic compounds and cannabinoids): a central composite design optimization study. Journal of the science of food and agriculture 102 (14) (2022)
Jena L Thoma, Charles L Cantrell, Valtcho D Zheljazkov
Effects of Essential Oil Fumigation on Potato Sprouting at Room-Temperature Storage. Plants (Basel, Switzerland) 11 (22) (2022)
Valtcho D Zheljazkov, Jay S Noller, Filippo Maggi, Robert Dale
Terpenes and Cannabinoids Yields and Profile from Direct-Seeded and Transplanted CBD- Cannabis sativa . Journal of agricultural and food chemistry 70 (34) (2022)
Daniela Gruľová, Beata Baranová, Vincent Sedlák, Laura De Martino, Valtcho D Zheljazkov, Mária Konečná, Janka Poráčová, Lucia Caputo, Vincenzo De Feo
Juniperus horizontalis Moench: Chemical Composition, Herbicidal and Insecticidal Activities of Its Essential Oil and of Its Main Component, Sabinene. Molecules (Basel, Switzerland) 27 (23) (2022)
Valtcho D Zheljazkov, Ivanka B Semerdjieva, Charles L Cantrell, Tessema Astatkie, Milica Aćimović
Phytochemical Variability of Essential Oils of Two Balkan Endemic Species: Satureja pilosa Velen. and S. kitaibelii Wierzb. ex Heuff. (Lamiaceae). Molecules (Basel, Switzerland) 27 (10) (2022)
Daniela Gruľová, Beata Baranová, Vincent Sedlák, Laura De Martino, Valtcho D Zheljazkov, Mária Konečná, Janka Poráčová, Lucia Caputo, Vincenzo De Feo
Juniperus horizontalis Moench: Chemical Composition, Herbicidal and Insecticidal Activities of Its Essential Oil and of Its Main Component, Sabinene. Molecules (Basel, Switzerland) 27 (23) (2022)
Marian Burducea, Ivayla N Dincheva, Lenuta Dirvariu, Eugen Oprea, Valtcho D Zheljazkov, Cristian-Alin Barbacariu
Wheat and Barley Grass Juice Addition to a Plant-Based Feed Improved Growth and Flesh Quality of Common Carp ( Cyprinus carpio ). Animals : an open access journal from MDPI 12 (8) (2022)
Daniela Gruľová, Beata Baranová, Vincent Sedlák, Laura De Martino, Valtcho D Zheljazkov, Mária Konečná, Janka Poráčová, Lucia Caputo, Vincenzo De Feo
Juniperus horizontalis Moench: Chemical Composition, Herbicidal and Insecticidal Activities of Its Essential Oil and of Its Main Component, Sabinene. Molecules (Basel, Switzerland) 27 (23) (2022)
Milena Nikolova, Ina Yosifova Aneva, Petar Zhelev, Ivanka B Semerdjieva, Valtcho D Zheljazkov, Vladimir Vladimirov, Stoyan Stoyanov, Strahil Berkov, Elina Yankova-Tsvetkova
Metabolic Profiles, Genetic Diversity, and Genome Size of Bulgarian Population of Alkanna tinctoria . Plants (Basel, Switzerland) 12 (1) (2022)
Jena L Thoma, Charles L Cantrell, Valtcho D Zheljazkov
Evaluation of Essential Oils as Sprout Suppressants for Potato ( Solanum tuberosum ) at Room Temperature Storage. Plants (Basel, Switzerland) 11 (22) (2022)
Marian Burducea, Andrei Lobiuc, Lenuta Dirvariu, Eugen Oprea, Stefan Mihaita Olaru, Gabriel-Ciprian Teliban, Vasile Stoleru, Vlad Andrei Poghirc, Irina Gabriela Cara, Manuela Filip, Mariana Rusu, Valtcho D Zheljazkov, Cristian-Alin Barbacariu
Assessment of the Fertilization Capacity of the Aquaculture Sediment for Wheat Grass as Sustainable Alternative Use. Plants (Basel, Switzerland) 11 (5) (2022)
Valtcho D Zheljazkov, Ivanka B Semerdjieva, Elina Yankova-Tsvetkova, Tessema Astatkie, Stanko Stanev, Ivayla N Dincheva, Miroslava Kacaniova
Chemical Profile and Antimicrobial Activity of the Essential Oils of Helichrysum arenarium (L.) Moench. and Helichrysum italicum (Roth.) G. Don. Plants (Basel, Switzerland) 11 (7) (2022)
Daniela Gruľová, Beata Baranová, Vincent Sedlák, Laura De Martino, Valtcho D Zheljazkov, Mária Konečná, Janka Poráčová, Lucia Caputo, Vincenzo De Feo
Juniperus horizontalis Moench: Chemical Composition, Herbicidal and Insecticidal Activities of Its Essential Oil and of Its Main Component, Sabinene. Molecules (Basel, Switzerland) 27 (23) (2022)
Milena Nikolova, Ina Yosifova Aneva, Petar Zhelev, Ivanka B Semerdjieva, Valtcho D Zheljazkov, Vladimir Vladimirov, Stoyan Stoyanov, Strahil Berkov, Elina Yankova-Tsvetkova
Metabolic Profiles, Genetic Diversity, and Genome Size of Bulgarian Population of Alkanna tinctoria . Plants (Basel, Switzerland) 12 (1) (2022)
Milica Aćimović, Jelena Vulić, Lato L Pezo, Vanja Travičić, Ana Tomić, Valtcho D Zheljazkov, Gordana Ćetković, Jaroslava Švarc-Gajić, Tanja Ž Brezo-Borjan, Ivana Sofrenić
Variability in Biological Activities of Satureja montana Subsp. montana and Subsp. variegata Based on Different Extraction Methods. Antibiotics (Basel, Switzerland) 11 (9) (2022)
Ivanka B Semerdjieva, Valtcho D Zheljazkov, Tzenka Radoukova, Ivayla N Dincheva, Neshka Piperkova, Vasilina Maneva, Tessema Astatkie, Miroslava Kacaniova
Biological Activity of Essential Oils of Four Juniper Species and Their Potential as Biopesticides. Molecules (Basel, Switzerland) 26 (21) (2021)
Valtcho D Zheljazkov, Charles L Cantrell, Ivanka B Semerdjieva, Tzenka Radoukova, Albena Stoyanova, Vasilina Maneva, Miroslava Kacaniova, Tessema Astatkie, Daniela Borisova, Ivayla N Dincheva, Ivan Salamon
Essential Oil Composition and Bioactivity of Two Juniper Species from Bulgaria and Slovakia. Molecules (Basel, Switzerland) 26 (12) (2021)
Valtcho D Zheljazkov, Ivanka B Semerdjieva, Jan Frederick Stevens, Wenbin Wu, Charles L Cantrell, Elina Yankova-Tsvetkova, Lyubka H Koleva-Valkova, Albena Stoyanova, Tessema Astatkie
Phytochemical Investigation and Reproductive Capacity of the Bulgarian Endemic Plant Species Marrubium friwaldskyanum Boiss. (Lamiaceae). Plants (Basel, Switzerland) 11 (1) (2021)
Valtcho D Zheljazkov, Ekaterina A Jeliazkova, Tessema Astatkie
Allelopathic Effects of Essential Oils on Seed Germination of Barley and Wheat. Plants (Basel, Switzerland) 10 (12) (2021)
Milica Aćimović, Miroslav Zorić, Valtcho D Zheljazkov, Lato L Pezo, Ivana Čabarkapa, Jovana Stanković Jeremić, Mirjana Cvetković
Chemical Characterization and Antibacterial Activity of Essential Oil of Medicinal Plants from Eastern Serbia. Molecules (Basel, Switzerland) 25 (22) (2020)
Stanko Stankov, Hafize Fidan, Zhanina S Petkova, Magdalena Stoyanova, Nadezhda Petkova, Albena Stoyanova, Ivanka B Semerdjieva, Tzenka Radoukova, Valtcho D Zheljazkov
Comparative Study on the Phytochemical Composition and Antioxidant Activity of Grecian Juniper (Juniperus excelsa M. Bieb) Unripe and Ripe Galbuli. Plants (Basel, Switzerland) 9 (9) (2020)
Ina Aneva, Petar Zhelev, Simeon Lukanov, Mariya Peneva, Kiril Vassilev, Valtcho D Zheljazkov
Influence of the Land Use Type on the Wild Plant Diversity. Plants (Basel, Switzerland) 9 (5) (2020)
Mohamed Ali Ibrahim, Charles L Cantrell, Ekaterina A Jeliazkova, Tessema Astatkie, Valtcho D Zheljazkov
Utilization of Nutmeg (Myristica fragrans Houtt.) Seed Hydrodistillation Time to Produce Essential Oil Fractions with Varied Compositions and Pharmacological Effects. Molecules (Basel, Switzerland) 25 (3) (2020)
Valtcho D Zheljazkov, Vladimir Sikora, Ivanka B Semerdjieva, Miroslava Kacaniova, Tessema Astatkie, Ivayla Dincheva
Grinding and Fractionation during Distillation Alter Hemp Essential Oil Profile and Its Antimicrobial Activity. Molecules (Basel, Switzerland) 25 (17) (2020)
Ivanka Semerdjieva, Galya Petrova, Elina Yankova-Tsvetkova, Tsvetelina Doncheva, Nadezhda Kostova, Rozalia Nikolova, Valtcho D Zheljazkov
Genetic diversity, reproductive capacity and alkaloids content in three endemic Alkanna species. PloS one 15 (6) (2020)
Simone Angeloni, Serena Scortichini, Dennis Fiorini, Gianni Sagratini, Sauro Vittori, Silva D Neiens, Martin Steinhaus, Valtcho D Zheljazkov, Filippo Maggi, Giovanni Caprioli
Characterization of Odor-Active Compounds, Polyphenols, and Fatty Acids in Coffee Silverskin. Molecules (Basel, Switzerland) 25 (13) (2020)
Venelina Popova, Tanya Ivanova, Albena Stoyanova, Violeta Nikolova, Tsveta Hristeva, Valtcho D Zheljazkov
GC-MS Composition and Olfactory Profile of Concretes from the Flowers of Four Nicotiana Species. Molecules (Basel, Switzerland) 25 (11) (2020)
H P Vasantha Rupasinghe, Amy Davis, Shanthanu K Kumar, Beth Murray, Valtcho D Zheljazkov
Industrial Hemp (Cannabis sativa subsp. sativa) as an Emerging Source for Value-Added Functional Food Ingredients and Nutraceuticals. Molecules (Basel, Switzerland) 25 (18) (2020)
Venelina Popova, Tanya Ivanova, Albena Stoyanova, Violeta Nikolova, Tsveta Hristeva, Velizar Gochev, Yonko Yonchev, Nikolay Nikolov, Valtcho D Zheljazkov
Terpenoids in the Essential Oil and Concentrated Aromatic Products Obtained from Nicotiana glutinosa L. Leaves. Molecules (Basel, Switzerland) 25 (1) (2019)
Hafize Fidan, Galina Stefanova, Iliana Kostova, Stanko Stankov, Stanka Damyanova, Albena Stoyanova, Valtcho D Zheljazkov
Chemical Composition and Antimicrobial Activity of Laurus nobilis L. Essential Oils from Bulgaria. Molecules (Basel, Switzerland) 24 (4) (2019)
Venelina Popova, Tanya Ivanova, Tsvetko Prokopov, Milena Nikolova, Albena Stoyanova, Valtcho D Zheljazkov
Carotenoid-Related Volatile Compounds of Tobacco (Nicotiana tabacum L.) Essential Oils. Molecules (Basel, Switzerland) 24 (19) (2019)
Ivanka B Semerdjieva, Santosh Shiwakoti, Charles L Cantrell, Valtcho D Zheljazkov, Tessema Astatkie, Vicki Schlegel, Tzenka Radoukova
Hydrodistillation Extraction Kinetics Regression Models for Essential Oil Yield and Composition in Juniperus virginiana, J. excelsa, and J. sabina. Molecules (Basel, Switzerland) 24 (5) (2019)
Santosh Shiwakoti, Valtcho D Zheljazkov, Hero T Gollany, Markus Kleber, Baoshan Xing
Micronutrients decline under long-term tillage and nitrogen fertilization. Scientific reports 9 (1) (2019)
Valtcho D Zheljazkov, Charles Neal Stewart, Blake Joyce, Holly Baxter, Charles L Cantrell, Tess Astatkie, Ekaterina A Jeliazkova, Charleson R Poovaiah
Dual Utilization of Medicinal and Aromatic Crops as Bioenergy Feedstocks. Journal of agricultural and food chemistry 66 (33) (2018)

Valtcho D Zheljazkov.css-eqlu8i{font-size:small;padding-left:4px;} (Valtcho Zheljazkov)

Publication Activity (10 Years)

Top Topics

Top Venues

Valtcho D Zheljazkov (Valtcho Zheljazkov)