Zobrazeno 1 - 10
of 253
pro vyhledávání: '"Valtcho D, Zheljazkov"'
Publikováno v:
Plants, Vol 13, Iss 17, p 2419 (2024)
Of the six juniper species found in the Bulgarian flora, three of the species have controversial taxonomic positions. Juniperus pygmaea K. Koch and J. sibirica Burgsd. exhibit similar morphological characteristics to J. communis L. in terms of leaves
Externí odkaz:
https://doaj.org/article/b15b87f958f640d69f99e8e64ca5f2a2
Autor:
Ivanka Semerdjieva, Valtcho D Zheljazkov, Ivayla Dincheva, Tzenka Radoukova, Tess Astatkie, Vasilina Maneva, Dina Atanasova, Hafize Fidan, Stanko Stankov, Albena Stoyanova
Publikováno v:
PLoS ONE, Vol 19, Iss 2, p e0294126 (2024)
The aims of this study were to (1) establish the intrapopulation and seasonal variation of Juniperus excelsа essential oil (EO); (2) compare the J. excelsa concrete and resinoid composition with its EO composition; and (3) investigate the potential
Externí odkaz:
https://doaj.org/article/41e58a86f61c449ea158796037659d44
Autor:
Ivanka Semerdjieva, Charles L. Cantrell, Valtcho D. Zheljazkov, Tzenka Radoukova, Lyubka H. Koleva-Valkova, Tess Astatkie, Miroslava Kačániová, Daniela Borisova
Publikováno v:
Heliyon, Vol 10, Iss 1, Pp e22967- (2024)
Pinus heldreichii Christ. (Bosnian pine), a Tertiary relict and Balkan sub-endemic, has not been comprehensively studied for its essential oil (EO) profile and bioactivity of its different plant parts. This study aimed to determine the EO yield, comp
Externí odkaz:
https://doaj.org/article/e8d6a979ef934474b886abe3ccd09202
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
As a staple crop, potatoes (Solanum tuberosum) play an important role in meeting daily caloric needs. To ensure adequate supplies for year-round consumption, potato quality must be maintained throughout lengthy storage periods. Towards this end, pota
Externí odkaz:
https://doaj.org/article/623d12b4641a498e95f2a09b2b13d586
Autor:
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
Publikováno v:
PLoS ONE, Vol 18, Iss 11, p e0293877 (2023)
IntroductionCentranthus kellereri is a Bulgarian endemic plant species, found only in two locations in the world: The Balkans Mountains (Stara Planina), above the town of Vratsa, and The Pirin Mountains, above the town of Bansko, Bulgaria. Being ende
Externí odkaz:
https://doaj.org/article/5eeda7801bdc4f9c9a6b8ca28d901cbd
Autor:
Valtcho D. Zheljazkov, Filippo Maggi
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract Hemp (Cannabis sativa L.) synthesizes and accumulates a number of secondary metabolites such as terpenes and cannabinoids. They are mostly deposited as resin into the glandular trichomes occurring on the leaves and, to a major extent, on the
Externí odkaz:
https://doaj.org/article/f1382b6c8c5e43009fd4b2b11165035f
Autor:
Ivanka Semerdjieva, Elina Yankova-Tsvetkova, Valtcho D. Zheljazkov, Lyubka H. Koleva-Valkova, Rozalia Nikolova
Publikováno v:
Plants, Vol 12, Iss 13, p 2436 (2023)
Satureja pilosa Velen., S. coerulea Janka and S. kitaibelii Wierzb. ex Heuff. are Balkan endemic species, and they are distributed in restricted territories, primarily found in dry grasslands, rocky slopes, and stony habitats. This study presents the
Externí odkaz:
https://doaj.org/article/99e91d23773f494dbd007eb69ebb6ac9
Autor:
Santosh Shiwakoti, Valtcho D. Zheljazkov, Hero T. Gollany, Markus Kleber, Baoshan Xing, Tess Astatkie
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
Abstract Previous studies in the long-term experiments at Pendleton, OR (USA), were focused on organic matter cycling, but the consequences of land management for nutrient status over time have received little attention. Soil and wheat (Triticum aest
Externí odkaz:
https://doaj.org/article/bbdf518933ec43cf8859ec6c107f31ba
Autor:
Jelena Visković, Valtcho D. Zheljazkov, Vladimir Sikora, Jay Noller, Dragana Latković, Cynthia M. Ocamb, Anamarija Koren
Publikováno v:
Agronomy, Vol 13, Iss 3, p 931 (2023)
Currently, there are increased interests in growing grain and fiber hemp (Cannabis sativa L.) as well as in large-scale hemp products. Cannabis has been grown/utilized for thousands of years as a fiber, grain, and drug/medicinal plant. However, the s
Externí odkaz:
https://doaj.org/article/86c778949f4345628a678ed38a7b8b22
Publikováno v:
Horticulturae, Vol 9, Iss 2, p 278 (2023)
The intensive use of lead (Pb)-based insecticides (lead arsenate, PbHAsO4) has led to Pb accumulation in agricultural soil, endangering human health through the possibility of transferring it to the food chain. The aim of this study was to evaluate t
Externí odkaz:
https://doaj.org/article/b29ffe33aff6470d8b6409926b1730d7