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Artykuły w czasopismach na temat "Polyandry"

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Boulton, Rebecca A., and David M. Shuker. "Polyandry." Current Biology 23, no. 24 (2013): R1080—R1081. http://dx.doi.org/10.1016/j.cub.2013.09.042.

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Pannell, John R., and Anne-Marie Labouche. "The incidence and selection of multiple mating in plants." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1613 (2013): 20120051. http://dx.doi.org/10.1098/rstb.2012.0051.

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Mating with more than one pollen donor, or polyandry, is common in land plants. In flowering plants, polyandry occurs when the pollen from different potential sires is distributed among the fruits of a single individual, or when pollen from more than one donor is deposited on the same stigma. Because polyandry typically leads to multiple paternity among or within fruits, it can be indirectly inferred on the basis of paternity analysis using molecular markers. A review of the literature indicates that polyandry is probably ubiquitous in plants except those that habitually self-fertilize, or tha
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Gyanwali, Gokarna P., and Ram H. Dhakal. "Polyandry Marriage Pattern in Highland People of Nepal." Molung Educational Frontier 14 (July 22, 2024): 121–39. http://dx.doi.org/10.3126/mef.v14i01.67897.

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Polyandry is a pattern of marriage in which a woman has more than one husband. It has been a common practice of marriage around the world since the historical period. There have been various forms of polyandry in Asia, Africa, Europe, Latin America, and America (snowbird of paradise, 2024). Among them, fraternal polyandry is common in most parts of the world. The polyandry system has also been common in most parts of Nepal in various forms. This article describes the present practice and situation of polyandry in the world as well as in the highland region of Nepal. This research is concerned
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Huchard, Elise, Cindy I. Canale, Chloé Le Gros, Martine Perret, Pierre-Yves Henry, and Peter M. Kappeler. "Convenience polyandry or convenience polygyny? Costly sex under female control in a promiscuous primate." Proceedings of the Royal Society B: Biological Sciences 279, no. 1732 (2011): 1371–79. http://dx.doi.org/10.1098/rspb.2011.1326.

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Classic sex roles depict females as choosy, but polyandry is widespread. Empirical attempts to understand the evolution of polyandry have often focused on its adaptive value to females, whereas ‘convenience polyandry’ might simply decrease the costs of sexual harassment. We tested whether constraint-free female strategies favour promiscuity over mating selectivity through an original experimental design. We investigated variation in mating behaviour in response to a reversible alteration of sexual dimorphism in body mass in the grey mouse lemur, a small primate where female brief sexual recept
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Middleton, Alex L. A. "Polyandry in the mating system of the American Goldfinch, Carduelis tristis." Canadian Journal of Zoology 66, no. 2 (1988): 296–99. http://dx.doi.org/10.1139/z88-044.

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For the first time, regular and recurring classical polyandry is documented in a passerine species, the American Goldfinch. Between 1979 and 1985, five cases of polyandry were documented through observations at the nests of colour-banded birds. Based on the timing of second broods combined with a change of mates, an additional seven cases of polyandry were suspected to have occurred between 1969 and 1978. Polyandry was attempted by females with previous breeding experience and provided a successful strategy for producing a second brood in a short breeding season. The fledging success of known
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Price, Tom A. R., Amanda Bretman, Ana C. Gradilla, et al. "Does polyandry control population sex ratio via regulation of a selfish gene?" Proceedings of the Royal Society B: Biological Sciences 281, no. 1783 (2014): 20133259. http://dx.doi.org/10.1098/rspb.2013.3259.

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The extent of female multiple mating (polyandry) can strongly impact on the intensity of sexual selection, sexual conflict, and the evolution of cooperation and sociality. More subtly, polyandry may protect populations against intragenomic conflicts that result from the invasion of deleterious selfish genetic elements (SGEs). SGEs commonly impair sperm production, and so are likely to be unsuccessful in sperm competition, potentially reducing their transmission in polyandrous populations. Here, we test this prediction in nature. We demonstrate a heritable latitudinal cline in the degree of pol
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Gurung, Juddha Bahadur. "Rapid Cultural Change: A Case Study of Polyandry Marriage System among the Gurung Community from Upper Mustang, Nepal." Dhaulagiri Journal of Sociology and Anthropology 6 (August 25, 2013): 75–106. http://dx.doi.org/10.3126/dsaj.v6i0.8480.

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Nepal is multi ethnic, multi lingual and multi cultural country. In Upper Mustang polyandry is practiced by Loba communities. However, the condition of polyandry is dying out at present. The young are not in favor of this system. Socio-economic, political, seasonal migration, tourism and developmental factors have played crucial role in this regards. From conservation perspective polyandry played crucial role to manage local resources and in population dynamics in the past. This paper is based on field survey carried out in two different time periods (1998 and 2008) in order to compare or unde
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Kok, Jan, Luc Bulten, and Bente M. de Leede. "Persecuted or permitted? Fraternal Polyandry in a Calvinist colony, Sri Lanka (Ceylon), seventeenth and eighteenth centuries." Continuity and Change 36, no. 3 (2021): 331–55. http://dx.doi.org/10.1017/s0268416021000308.

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AbstractSeveral studies assume that Calvinist Christianity severely undermined or even persecuted the practice of polyandry in the Sri Lankan areas under Dutch control. We analyze Dutch colonial policy and Church activities toward polyandry by combining ecclesiastical and legal sources. Moreover, we use the Dutch colonial administration of the Sinhalese population to estimate the prevalence of polyandry. We conclude that polyandry was far from extinct by the end of the Dutch period and we argue that the colonial government was simply not knowledgeable, interested and effective enough to persec
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Boulton, Rebecca A., and David M. Shuker. "A sex allocation cost to polyandry in a parasitoid wasp." Biology Letters 11, no. 6 (2015): 20150205. http://dx.doi.org/10.1098/rsbl.2015.0205.

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The costs and benefits of polyandry are central to understanding the near-ubiquity of female multiple mating. Here, we present evidence of a novel cost of polyandry: disrupted sex allocation. In Nasonia vitripennis , a species that is monandrous in the wild but engages in polyandry under laboratory culture conditions, sexual harassment during oviposition results in increased production of sons under conditions that favour female-biased sex ratios. In addition, females more likely to re-mate under harassment produce the least female-biased sex ratios, and these females are unable to mitigate th
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Sutter, Andreas, and Anna K. Lindholm. "Detrimental effects of an autosomal selfish genetic element on sperm competitiveness in house mice." Proceedings of the Royal Society B: Biological Sciences 282, no. 1811 (2015): 20150974. http://dx.doi.org/10.1098/rspb.2015.0974.

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Female multiple mating (polyandry) is widespread across many animal taxa and indirect genetic benefits are a major evolutionary force favouring polyandry. An incentive for polyandry arises when multiple mating leads to sperm competition that disadvantages sperm from genetically inferior mates. A reduction in genetic quality is associated with costly selfish genetic elements (SGEs), and studies in invertebrates have shown that males bearing sex ratio distorting SGEs are worse sperm competitors than wild-type males. We used a vertebrate model species to test whether females can avoid an autosoma
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Rozprawy doktorskie na temat "Polyandry"

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Butchart, Stuart Howard Miles. "Sexual conflicts and polyandry in bronze-winged jacanas." Thesis, University of Cambridge, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.624987.

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Ronkainen, K. (Katri). "Polyandry, multiple mating and sexual conflict in a water strider, Aquarius paludum." Doctoral thesis, Oulun yliopisto, 2016. http://urn.fi/urn:isbn:9789526212364.

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Abstract Sexual selection results from competition between individuals over access to gametes of the opposite sex. Starting with anisogamy, with females producing larger and fewer gametes than males, females usually invest more in reproduction and thus have lower potential reproductive rates than males. Therefore males are traditionally suggested to compete over females whereas females are choosy. The different evolutionary interests between the sexes result in different selection regimes considering e.g. mating rates. In some species, this conflict is even seen as apparent struggles between m
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Nilsson, Tina. "Polyandry and the evolution of reproductive divergence in insects." Doctoral thesis, Umeå : Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-181.

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Firman, Renee C. "The evolutionary implications of polyandry in house mice (Mus domesticus)." University of Western Australia. School of Animal Biology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0162.

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[Truncated abstract] Despite the costs associated with mating, females of many taxa solicit multiple mates during a single reproductive event (polyandry). Polyandry is clearly adaptive when females gain direct benefits from males at mating. However, polyandry has also been shown to increase female fitness in the absence of direct benefits. Thus, a number of genetic benefit hypotheses have been developed to account for the origin of this behaviour. Although not mutually exclusive, a distinction lays between genetic benefits that propose defense against reproductive failure (nonadditive genetic
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Ivy, Tracie Marie Sakaluk Scott Kitchener. "The evolution of polyandry in the decorated cricket, Gryllodes sigillatus." Normal, Ill. : Illinois State University, 2005. http://proquest.umi.com/pqdweb?index=0&did=1221741601&SrchMode=1&sid=4&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1176386432&clientId=43838.

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Thesis (Ph. D.)--Illinois State University, 2005.<br>Title from title page screen, viewed April 12, 2007. Dissertation Committee: Scott K. Sakaluk (chair), Diane L. Byers, Steven A. Juliano, Sabine S. Loew, William L. Perry. Includes bibliographical references (leaves 96-114) and abstract. Also available in print.
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Herridge, Elizabeth J. "The role of polyandry in sexual selection among dance flies." Thesis, University of Stirling, 2016. http://hdl.handle.net/1893/25013.

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Elaborate sexual ornaments evolve because mate choice exerts strong sexual selection favouring individuals with high levels of ornament expression. Consequently, even at evolutionary equilibrium, life history theory predicts that ornamental traits should be under directional sexual selection that opposes contrasting selection to reduce the costs associated with their maintenance. Otherwise, the resources used to maintain ornaments should be used to improve other life history functions. Elaborate female ornaments have only evolved in a few species, despite females commonly experiencing strong s
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Long, Christopher. "Testing for indirect benefits of polyandry in the Florida green turtle." Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5982.

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Behavioral studies in the green turtle (Chelonia mydas) have indicated that promiscuous mating is commonplace. Though it has been shown that there is much variation in the rate of polyandry (females mating with multiple males), the drivers behind polyandry in this species are unknown. It has been speculated, but never demonstrated, that indirect benefits (fitness benefits resulting from offspring genetic diversity) play a role. However, previous tests of this hypothesis have limited scope of inference due to lack of environmental control. In this thesis, I attempted to study the indirect benef
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Morimoto, Juliano. "Polyandry and nutrition : key modulators of sexual selection in Drosophila melanogaster." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:d0c59fbf-2d31-4959-8001-776a388a5898.

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Sexual selection is responsible for the evolution of formidable adaptations across the tree of life. Traditionally, sexual selection research has focused on male sexual displays and female choice. However, this approach ignores important social and environmental factors that can influence the operation of sexual selection. In this thesis, I aim to contribute to our knowledge of the effects of social and environmental factors, particularly those related to nutrition, on sexual selection. I investigate how the sexual behaviour of females and the nutritional and social environments of both sexes
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Worden, Bradley Dean. "Female mating behavior in the Beetle Tenebrio Molitor : polyandry and parasite-mediated sexual selection /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488205318511058.

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Katvala, M. (Mari). "Female reproduction and conspecific utilisation in an egg-carrying bug:-Who carries, who cares?" Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:9514269691.

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Abstract Female ability to exploit conspecifics in reproduction may have unusual expressions. I studied the reproductive behaviour of the golden egg bug (Phyllomorpha laciniata; Heteroptera, Coreidae) experimentally in the field and in the laboratory. Female golden egg bugs lay their eggs mainly on the backs of conspecific males and other females. Non-parental eggs are often carried. Occasionally, the eggs are laid on the food plant (Paronychia spp; Polycarpea, Caryophyllaceae) of the species but typically, those eggs survive poorly due to egg parasitism and predation. I explored the dependenc
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Książki na temat "Polyandry"

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Bhatt, G. S. Women and polyandry in Rawain Jaunpur. Rawat Publications, 1991.

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Peter. A study of polyandry in Indian sub continent. Asha Jyoti Book Sellers & Publishers, 2012.

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Kalejaiye, Dipo. Polygyny ; and, Polyandry: Two plays about marriage. Macmillan, 1985.

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Kumar, Raha Manis, and Coomar Palash Chandra 1956-, eds. Polyandry in India: Demographic, economic, social, religious, and psychological concomitants of plural marriages in women. Gian Pub. House, 1987.

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Levine, Nancy E. The dynamics of polyandry: Kinship, domesticity, and population on the Tibetan border. University of Chicago Press, 1988.

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author, Xu Shaoming, ed. Qing Zang Gaoyuan de hun yin he tu di: Yin ru xiong di gong qi zhi de fen xi = Qingzang Gaoyuan de hunyin he tudi : yinru xiongdi gongqizhi de fenx. Zhongshan da xue chu ban she, 2013.

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author, Xu Shaoming, ed. Qing Zang Gaoyuan de hun yin he tu di: Yin ru xiong di gong qi zhi de fen xi. Chang ming wen hua you xian gong si, 2017.

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Banjue. Xizang nong qu yi qi fu duo hun yin de ren lei xue yan jiu (Zang wen Ying wen). Zhongguo Zang xue chu ban she, 2014.

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Mengzhu, Zhang. Qing dai di ceng she hui "Yi qi duo fu" xian xiang zhi yan jiu. Guo li zheng zhi da xue li shi xue xi, 2013.

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Pitshandenge, I. Ngondo a. La polyandrie chez les bashilele du Kasaï occidental (Zaïre): Fonctionnement et rôles. CEPED, 1996.

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Części książek na temat "Polyandry"

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Frank, J. Howard, J. Howard Frank, Michael C. Thomas, et al. "Polyandry." In Encyclopedia of Entomology. Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_3035.

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McKay, Kimber. "Polyandry." In Encyclopedia of Evolutionary Psychological Science. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-16999-6_119-1.

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Szala, A., and Todd K. Shackelford. "Polyandry." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-47829-6_1977-1.

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Szala, Anna, and Todd K. Shackelford. "Polyandry." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_1977.

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Oring, Lewis W. "Avian Polyandry." In Current Ornithology. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4615-6784-4_7.

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Orfanidis, Georgios A. "Polyamory (Polygamy and Polyandry)." In Encyclopedia of Psychology and Religion. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-24348-7_200097.

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Rosenfield, Kevin A. "Facultative Polyandry/Strategic Pluralism." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_321.

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Rosenfield, Kevin A. "Facultative Polyandry/Strategic Pluralism." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-47829-6_321-1.

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Orfanidis, Georgios A. "Polyamory (Polygamy and Polyandry)." In Encyclopedia of Psychology and Religion. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-642-27771-9_200097-1.

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Hosken, D. J., and P. Stockley. "Benefits of Polyandry: A Life History Perspective." In Evolutionary Biology. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4757-5190-1_4.

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Streszczenia konferencji na temat "Polyandry"

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Awad, Mona. "Unbalanced polyandry in wild caughtHarmoniaaxyridis." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93806.

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Trillo, Paula Alejandra. "Fitness effects of polyandry inAcromis sparsa(Chrysomelidae: Cassidinae)." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.92790.

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Weber, Rasa. "A Sympoietic Ocean. Design research with/in the marine holobiont." In 28th International Symposium on Electronic Art. Ecole des arts decoratifs - PSL, 2024. http://dx.doi.org/10.69564/isea2023-90-full-weber-et-al-a-sympoietic-ocean.

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In the face of profound human impact on planetary systems, the global ocean, as the main source of life, is fundamentally transforming its interactions, flows, and ecologies. These critical changes raise questions of other-than-human cohabitation beyond the terrestrial. In response to these radical ecological changes, a growing branch of the design discipline is currently struggling to free itself from a production-oriented paradigm of industrial modernity and reorganizes its methods toward forms of interspecies collaboration with/in environments of anthropogenic change. In this paper, I argue
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Kondratyeva, Т. L., I. G. Ushakova, I. A. Trotsenko, Yu V. Korchevskaya, and G. А. Gorelkina. "State, problems and prospects of water supply for small settlements on the example of the Russko-Polyansky district of the Omsk region." In III INTERNATIONAL SCIENTIFIC FORUM ON COMPUTER AND ENERGY SCIENCES (WFCES 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0163594.

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Serikova, V. I. "STUDY OF THE FEATURES OF SPORE REPRODUCTION, ONTOGENETIC STAGES AND CULTIVATION OF SOME SPECIES OF FERNS OF REGIONAL FLORA DURING INTRODUCTION IN BOTANICAL GARDEN BY THE NAME OF PROFESSOR B.M. KOZO-POLYANSKY OF THE VORONEZH STATE UNIVERSITY." In СОВРЕМЕННЫЕ ПРОБЛЕМЫ ИНТРОДУКЦИИ И СОХРАНЕНИЯ БИОРАЗНООБРАЗИЯ РАСТЕНИЙ. Цифровая полиграфия, 2022. http://dx.doi.org/10.17308/978-5-907283-86-2-2022-203-217.

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