Academic literature on the topic 'Cluster varieties'

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Journal articles on the topic "Cluster varieties"

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Montagnon, C., A. Mahyoub, W. Solano, and F. Sheibani. "Unveiling a unique genetic diversity of cultivated Coffea arabica L. in its main domestication center: Yemen." Genetic Resources and Crop Evolution 68, no. 6 (2021): 2411–22. http://dx.doi.org/10.1007/s10722-021-01139-y.

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AbstractWhilst it is established that almost all cultivated coffee (Coffea arabica L.) varieties originated in Yemen after some coffee seeds were introduced into Yemen from neighboring Ethiopia, the actual coffee genetic diversity in Yemen and its significance to the coffee world had never been explored. We observed five genetic clusters. The first cluster, which we named the Ethiopian-Only (EO) cluster, was made up exclusively of the Ethiopian accessions. This cluster was clearly separated from the Yemen and cultivated varieties clusters, hence confirming the genetic distance between wild Eth
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Samal, S., G. R. Rout, and P. C. Lenka. "Analysis of genetic relationships between populations of cashew (Anacardium occidentale L.) by using morphological characterisation and RAPD markers." Plant, Soil and Environment 49, No. 4 (2011): 176–82. http://dx.doi.org/10.17221/4110-pse.

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In the present paper genetic relationships of twenty varieties of cashew are described on the basis of morphological characters and RAPD (Randomly Amplified Polymorphic DNA) markers. Results obtained for the phenotypic characters based on similarity coefficient were divided into four clusters with 70% similarity. By means of similarity coefficients (SG), cluster I was found to consist of twelve varieties. Cluster II consisted of a single variety, NRCC-1, cluster III consisted of six varieties and cluster IV had only one variety, Vridhachalam-2. The analysis started by using R
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Mallick, Sharmila Rani, AKM Quamruzzaman, Md Altaf Hossain, M. Mizanur Rahman, Md Azizul Hoque, and Md Rafiqul Islam. "Diversity of Potato Varieties in Bangladesh." European Journal of Agriculture and Food Sciences 3, no. 3 (2021): 56–61. http://dx.doi.org/10.24018/ejfood.2021.3.3.281.

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A study based on completely randomized design with three replications was carried out at Tuber Crops Research Centre (TCRC), Bangladesh Agricultural Research Institute (BARI), Gazipur with a view to evaluating and classifying agro-morphological traits in 12 potato varieties to enumerating the genetic diversity. Discriminant function analysis (DFA) was done to determine the set of discriminatory functions contributed to separating 12 potato varieties into four distinct clusters. Discriminant function analysis showed that, function 1 explained 78.21% and function 2 explained 21.79% of total vari
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Weerasinghe, Deepika Priyadarshani. "Evaluation of Morphological Variations in Exotic Rice (Oryza Sativa L.) Genetic Materials under Sri Lankan Field Conditions." New Countryside 1, no. 2 (2022): 16–22. http://dx.doi.org/10.55121/nc.v1i2.32.

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To evaluate genetic diversity of 64 rice germplasms with five local check varieties, an experiment was conducted as the randomized complete block design with two replicates. It was conducted in experimental field of the Regional Rice Research and Development Center, Bombuwela, Sri Lanka. There were five morphological characters such as plant height, days to flowering, days to maturity, grain yield and the phenotypic acceptability of varieties were evaluated. As the results analysis of variance showed there is a significant difference among genotypes of all the tested characters. A total of fou
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Utami, Dwinita W. "BAYESIAN CLUSTERING OF INDONESIAN RICE GERMPLASM." Informatika Pertanian 24, no. 2 (2016): 133. http://dx.doi.org/10.21082/ip.v24n2.2015.p133-140.

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Model-based clustering where the inference on the parameters follow the Bayesian principle has been used to cluster 467 accessions of Indonesian rice germplasm which consist of released varieties, landraces, introduction lines, improved lines and wild species. A model-based Bayesian cluster analysis of genotype data can be used to evaluate the genetic backgrounds of rice populations of interest. Such analyses can be used to infer population structure, assign individuals to sub populations, and to study hybrid populations. Thus, the goal of this research was to examine the genotype data of nume
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Dobreva, Tsvetelina. "Study of drought tolerance of winter oat varieties." Agricultural Sciences 15, no. 39 (2023): 45–50. http://dx.doi.org/10.22620/agrisci.2023.39.004.

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This research was conducted during the period 2019-2021 at the Institute of Agriculture in Karnobat, Bulgaria. In order to establish suitable parents for a selection of drought resistant varieties, twelve accessions of introduced winter oats were studied. The genetic similarity and distance of the accessions was determined by means of cluster analysis. The highest drought resistance was exhibited by varieties Lustre, Image, Westfinnischer Schwarz, Powys, Lee and Fulghum . A good combination of drought resistance, grain weight per spike and 1000-grain weight was found for Lustre, Image and the
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Hasan, Mehfuz, and Mohammad Sharif Raihan. "Genetic Variability in Bangladeshi Aromatic Rice through RAPD Analysis." Turkish Journal of Agriculture - Food Science and Technology 3, no. 3 (2014): 107. http://dx.doi.org/10.24925/turjaf.v3i3.107-111.210.

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Genetic polymorphism and relationships among 30 commercial varieties of Bangladeshi aromatic rice (Oryza sativa L.) were established using random amplified polymorphic DNA (RAPD) primers. Out of fifty 10-mer RAPD primers screened initially, four were chosen and used in a comparative analysis of different varieties of indigenous Bangladeshi aromatic rice. Of the 33 total RAPD fragments amplified, 7 (21.21%) were found to be shared by individuals of all eight varieties. The remaining 26 fragments were found to be polymorphic (78.79%). Pair-wise estimates of similarity ranged from 0.101 to 0.911.
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Bilyavska, L., and A. Rybalchenko. "Cluster analysis in soybean varieties classification by economic characteristics." Agrobìologìâ, no. 2(161) (November 24, 2020): 7–15. http://dx.doi.org/10.33245/2310-9270-2020-161-2-7-15.

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The aim of the study was to improve the method of soybean collection material assessment with the purpose of choosing pairs for hybridization using cluster analysis, to cluster samples according to the duration of growing period, plant height, the height of lower pod attachment, stem thickness in the lower part, the number of branches and productive joints on a plant, the number of pods and seeds per plant, the number of seeds in a pod, seed weight per plant, yield (g/m2 ), and the resistance to lodging and bean cracking. Based on the conducted cluster analysis of one hundred and forty-five so
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Costa, Marcia Oliveira, Livia Santos Capel, Carlos Maldonado, Freddy Mora, Claudete Aparecida Mangolin, and Maria de Fátima Pires da Silva Machado. "High genetic differentiation of grapevine rootstock varieties determined by molecular markers and artificial neural networks." Acta Scientiarum. Agronomy 42 (September 20, 2019): e43475. http://dx.doi.org/10.4025/actasciagron.v42i1.43475.

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The genetic differentiation of grapevine rootstock varieties was inferred by the Artificial Neural Network approach based on the Self-Organizing Map algorithm. A combination of RAPD and SSR molecular markers, yielding polymorphic informative loci, was used to determine the genetic characterization among the rootstock varieties 420-A, Schwarzmann, IAC-766 Campinas, Traviú, Kober 5BB, and IAC-572 Jales. A neural network algorithm, based on allelic frequency, showed that the individual grapevine rootstocks (n = 64) were grouped into three genetically differentiated clusters. Cluster 1 included on
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Pavlenko, Anna, Maria Dolzhikova, Anna Pikunova, and Annastasiya Bakhotskaya. "Use of SSR markers to study genetic polymorphism in members of the Ribes L. genus from the VNIISPK collection." E3S Web of Conferences 254 (2021): 02009. http://dx.doi.org/10.1051/e3sconf/202125402009.

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This study was the first time in Russia to carry out a large-scale (127 samples) assessment of the diverse gene pool of black currant and red currant, the study of intervarietal polymorphism between varieties of the Ribes L. genus from the VNIISPK collection. A cluster analysis of the genetic similarity of black currant varieties (53 varieties), red currant (73 varieties) and one gooseberry variety was performed using 14 SSR markers. Based on the data obtained, a dendrogram was built, in which a number of clusters with high bootstrap support (BS, %) were distinguished. At BS>50%, the coeffi
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Dissertations / Theses on the topic "Cluster varieties"

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Livingstone, Alma. "Identifying Varieties of Peace : A Cluster Analysis of Peacefulness in the 21st Centur." Thesis, Umeå universitet, Statsvetenskapliga institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-162556.

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This thesis identifies a discrepancy in the understanding of peace as a need for further efforts to be made in both the conceptualization and operationalization of what peace is. Working from the pluralistic multidimensional view of what peace could be defined as, dictated by the works of Dietrich (2014), Kovacs-Söderberg and Höglund (2010) and Davenport et al. (2018), this thesis set out to explore structures present in the descriptive variables of peacefulness found in the Global Peace Index data set. Through a multivariate cluster analysis, six clusters emerged. These inhibited differing ma
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Pastant, Nicolas. "Théorie des noeuds et variétés amassées." Thesis, Strasbourg, 2019. https://publication-theses.unistra.fr/public/theses_doctorat/2019/Nicolas_Pastant_2019_ED269.pdf.

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Dans cette thèse nous établissons des liens entre la théorie des nœuds et la théorie des variétés amassées. Nous réinterprétons le modèle de dimères pour le polynôme d'Alexander d'un nœud de Cohen, Dasbach et Russel dans le contexte des variétés amassées. Nous étendons le modèle à la torsion de Milnor de l'extérieur d'un entrelacs. Nous construisons une application qui associe à un représentant de tresse colorée et orientée, une paire consistant en une variété amassée modelée sur le diagramme Dynkin de type A et une sous-variété de cette dernière. Les variétés modelées sur le diagramme de Dynk
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Menard, Etienne. "Algèbres amassées associées aux variétés de Richardson ouvertes : un algorithme de calcul de graines initiales." Thesis, Normandie, 2021. http://www.theses.fr/2021NORMC211.

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Les algèbres amassées sont des anneaux commutatifs intègres avec une structure combinatoire particulière.Cette structure consiste en la donnée d’une famille de graines, liées entre elles par une opération appelée mutation.Chaque graine est composée de deux parties : un amas et un carquois.Les variétés de Richardson ouvertes sont des strates de la variété de drapeaux associée à un groupe linéairealgébrique de type simplement lacé. Elles sont l’intersection de cellules de Schubert respectivement à deux sous-groupes de Borel opposés. Dans [Lec16], une sous-algèbre amassée de rang maximal sur l’an
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Books on the topic "Cluster varieties"

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Cognola, Federica, and Jan Casalicchio, eds. Null Subjects in Generative Grammar. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198815853.001.0001.

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This book considers the null-subject phenomenon, whereby some languages lack an overtly realized referential subject in specific contexts. In generative syntax—the approach adopted in this volume—the phenomenon has traditionally been explained in terms of a ‘pro-drop’ parameter with associated cluster properties; more recently, however, it has become clear that pro-drop phenomena do not always correlate with all the initially predicted cluster properties. This volume returns to the centre of the debate surrounding the empirical phenomena associated with null subjects. Experts in the field expl
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Schmied, Josef. East African English. Edited by Markku Filppula, Juhani Klemola, and Devyani Sharma. Oxford University Press, 2015. http://dx.doi.org/10.1093/oxfordhb/9780199777716.013.35.

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English in East Africa is a well-developed usage variety (or a cluster of usage varieties), although it is not as indigenized as in West Africa, for instance, because many functions in the language repertoire are still taken over by Kiswahili and other African languages. The debate on developing an independent norm is not prominent, although at least English in Kenya could be classified as an outer circle variety. Theoretically, innovations, including borrowings from the national language Kiswahili, are less prominent than expansions of usages well-known from other New Englishes. Few features
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Smuts, Malcolm, ed. The Oxford Handbook of the Age of Shakespeare. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780199660841.001.0001.

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This handbook presents a broad sampling of current historical scholarship on Shakespeare’s period that it is hoped will prove useful to scholars of his poems and plays. Rather than attempting to summarize the historical ‘background’ to Shakespeare, individual chapters explore numerous topics and methodologies at the forefront of current historical research. An initial cluster shows how political history has expanded beyond a traditional focus on relations between Crown and Parliament to encompass attention to attempts by the government to manage opinion; military challenges; problems in subdui
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Book chapters on the topic "Cluster varieties"

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Fong, Vivienne. "4. The verbal cluster." In Varieties of English Around the World. John Benjamins Publishing Company, 2004. http://dx.doi.org/10.1075/veaw.g33.06fon.

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Lakshmibai, V., and Rahul Singh. "Conormal Varieties on the Cominuscule Grassmannian." In Interactions of Quantum Affine Algebras with Cluster Algebras, Current Algebras and Categorification. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-63849-8_11.

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Cheung, Man-Wai Mandy, and Renato Vianna. "Algebraic and Symplectic Viewpoint on Compactifications of Two-Dimensional Cluster Varieties of Finite Type." In 2019-20 MATRIX Annals. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62497-2_35.

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Goncharov, Alexander, and Maxim Kontsevich. "Spectral Description of Non-Commutative Local Systems on Surfaces and Non-Commutative Cluster Varieties." In Simons Symposia. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-74134-0_5.

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Bernaisch, Tobias, and Sven Leuckert. "Chapter 8. Short-term diachronic and variety-internal approaches to textual functionality in South Asian Englishes." In Studies in Corpus Linguistics. John Benjamins Publishing Company, 2024. http://dx.doi.org/10.1075/scl.119.08tob.

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To empirically trace functional characteristics of texts such as speaker/writer involvement, narrativity or persuasiveness with a view to potential (a) intra-national variability in Indian English and (b) short-term diachronic change in South Asian Englishes, the South Asian Varieties of English (SAVE) corpus, its updated version SAVE2020, and the Corpus of Regional Indian Newspaper Englishes (CORINNE) are subjected to Multidimensional Analysis (MDA, Biber 1988) as implemented in Nini (2019). A hierarchical cluster analysis of the respective MDA scores reveals the tendency of mesolectal Indian
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Avram, Andrei A. "Contextual Neutralisation of Voicing in Maltese Obstruents." In Semitic Languages and Cultures. Open Book Publishers, 2025. https://doi.org/10.11647/obp.0445.03.

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This chapter explores the historical evolution of contextual voicing neutralization in Maltese obstruents, focusing on regressive voicing assimilation and word-final devoicing. By comparing Modern Maltese with its Arabic ancestor, evidence shows sporadic instances of spontaneous voicing and devoicing in earlier stages, transitioning to systematic phonological rules by the late 18th century. An analysis of texts, lexicons, and notarial records from the 15th to 18th centuries reveals that while early Maltese exhibited voiced obstruents and mixed clusters, regressive assimilation and word-final d
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"Cluster Varieties and Toric Specializations of Fano Varieties." In Higher Dimensional Algebraic Geometry. Cambridge University Press, 2025. https://doi.org/10.1017/9781009396233.017.

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"Phonological Variation: Consonant Cluster Simplification." In Varieties of English Around the World. John Benjamins Publishing Company, 1999. https://doi.org/10.1075/veaw.g17.09pho.

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Wheeler, Max W. "Cluster Reduction." In The Phonology of Catalan. Oxford University PressOxford, 2005. http://dx.doi.org/10.1093/oso/9780199258147.003.0007.

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Abstract One of the phenomena of Catalan phonology that has given rise to some discussion in the phonological literature is ‘homorganic stop deletion’, the process by which, for example, pont/pent/ ‘bridge’ is pronounced [pen] in most of Catalonia and in Ibiza. This process is usually linked to a more general one of cluster reduction affecting complex codas. In many varieties, a preconsonantal coda is generally limited to two consonants; thus parts baixes/part + z + a ∫ a + z/ ‘lower parts’ is pronounced [ parz. β aS∫ s], a reduction process that has yet more far- reaching effects in Majorcan.
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Zhang Peng, Guan Jun-Jiao, Huang Qing-Mei, Liu Yan-Fang, and Zhang Jian-Hua. "Phenotypic Diversity of Phalaenopsis Based on Statistic Analysis and Data Mining." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2016. https://doi.org/10.3233/978-1-61499-619-4-486.

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With the aid of statistic analysis and data mining, this study investigates the phenotypic diversity of 48 phalaenopsis varieties to provide basis for resource utilization and breeding improvement. Results showed that the order of expression ranges of phalaenopsis characteristics was inflorescence>petals>dorsal sepal>leaf>apical lobe. Two characteristics, inflorescence length and flower number of single inflorescence, had the largest expression ranges. Based on clustering analysis, 48 phalaenopsis varieties can be divided into 7 groups: varieties with an intermediat
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Conference papers on the topic "Cluster varieties"

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Deaghileva, Angela. "Identification of mycotoxin-producing species of fusarium in tomato ontogenesis." In VIIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2024. https://doi.org/10.53040/gppb8.2024.12.

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The results of molecular identification of toxigenic Fusarium spp. in local tomato varieties at some vegetative phases are presented. F. oxysporum, F. verticillioides, F. proliferatum, F. avenaceum, F. equiseti, F. solani were found at different stages of tomato development. Sequences of FUM gene cluster involved in the synthesis of Fumonisin B1 and Polyketide synthase (PKS13) gene sequences involved in the synthesis of Zearalenone were revealed in some tomato varieties infected by certain toxigenic Fusarium species.
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Jovanović-Cvetković, Tatjana, Dragutin Mijatović, Ivana Radojević, and Danijela Starčević. "RODNOST STONIH SORTI INTERSPECIES HIBRIDA U USLOVIMA BANJALUČKE REGIJE." In XXVII savetovanje o biotehnologiji. University of Kragujevac, Faculty of Agronomy, 2022. http://dx.doi.org/10.46793/sbt27.187jc.

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Interspecies hybrids are classified in a special category of domesticated grapevines. In Bosnia and Herzegovina, on the territory of Herzegovina, table grapes for commodity production and varieties with all ripening periods can be successfully grown. Starting from the interspecies hybrids characteristics and having in mind the non-existent tradition of table grape varieties production in northern Bosnia there is a need to introduce this type of varieties in experiments on this area. The paper presents the results of two - year research of introduced table varieties Palatina, Nero, Ester and Ru
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Yoshida, Daisuke, Katsuhiro Honda, Akira Notsu, and Hidetomo Ichihashi. "Hybrid objective function of Fuzzy c-Varieties and cross-shape fuzzy cluster extraction." In 2011 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE). IEEE, 2011. http://dx.doi.org/10.1109/fuzzy.2011.6007508.

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Wieling, Martijn, and John Nerbonne. "Bipartite spectral graph partitioning to co-cluster varieties and sound correspondences in dialectology." In the 2009 Workshop. Association for Computational Linguistics, 2009. http://dx.doi.org/10.3115/1708124.1708129.

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"Study on selected pelleting properties of different wheat varieties based on the principal component and cluster analysis." In 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152169254.

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Cao, Dongxing, Karthik Ramani, Ming Wang Fu, and Runli Zhang. "A Port-Based Agent Approach to Guiding Concept Generation for Customizing Modular Varieties." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28492.

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As the description of design requirements at the earlier design stage is inaccurate and vague, it is difficult to figure out functional structure of a product and make sense product configuration. Therefore, it plays an important role to formally represent the process of design for product development in the conceptual design stage. Furthermore, port, as the location of intended interaction, is crucial to capture component concept and realize conceptual design for multi-solution generation. Agent is considered as an effective approach to collaboratively implementing design problem solving and
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Belozerova, Margarita S., and Natalia V. Kuznetsova. "CORRELATION BETWEEN CONSONANTAL DURATION AND LENGTH AND PRESENCE OF THE FOLLOWING VOWEL IN THE FINNIC VARIETIES OF INGRIA (LOWER LUGA AREA)." In Проблемы языка: взгляд молодых учёных. Институт языкознания РАН, 2023. http://dx.doi.org/10.37892/978-5-6049527-1-9-1.

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The paper studies a correlation between the duration of a consonant and the length or presence of the following vowel in the Finnic varieties of Ingria of the Lower Luga region: dialects of the Finnish, Ingrian and Votic languages, as well as in a mixed Siberian Ingrian/Finnish variety which also originates from the same region. Our first hypothesis (a) about a compensatory (inversely proportional) lengthening of preceding consonants which accompanies the final vowel loss was confirmed on the basis of the three idiolects with a high percentage of final vowel loss (two Southern Lower Luga Ingri
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Popović, Tatjana, Armin Kalač, Zoran Jovović, Danijela Raičević, and Radmila Pajović-Šćepanović. "INFLUENCE OF DIFFERENT VINEYARD WEED CONTROL METHODS ON AGROBIOLOGICAL, ECONOMICAL AND TECHNOLOGICAL CHARACTERISTICS OF VRANAC VARIETY." In 2nd International Symposium on Biotechnology. Faculty of Agronomy in Čačak, University of Kragujevac, 2024. http://dx.doi.org/10.46793/sbt29.22tp.

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The study of the impact of different methods of weed control on the agrobiological, economical and agrotechnological characteristics of the Vranac variety was carried out in the Podgorica vineyard in 2015. Six different variants of weed control were applied: control, mechanical weed control, glyphosate (one treatment), glyphosate (two treatments), flazasulfuron and flazasulfuron +glyphosate. The yield of grapes during the research period ranged from 2.9 kg/vine in control to 3.9 kg/vine in the variant with combined use of flazasulfuron and glyphosate. The lowest average cluster weight was meas
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Zheng, Xiaorong, Julius Krause, Benedikt Fischer, Robin Gruna, Reinhard Töpfer, and Anna Kicherer. "Phenoliner 2.0: RGB and near-infrared (NIR) image acquisition for an efficient phenotyping in grapevine research." In OCM 2021 - 5th International Conference on Optical Characterization of Materials. KIT Scientific Publishing, 2021. http://dx.doi.org/10.58895/ksp/1000128686-6.

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In grapevine research, phenotyping needs to be done for different traits such as abiotic and biotic stress. This phenotypic data acquisition is very time-consuming and subjective due to the limitation of manual visual estimation. Sensor-based approaches showed an improvement in objectivity and throughput in the past. For example, the ‘Phenoliner’ a phenotyping platform, based on a modified grape harvester, is equipped with two different sensor systems to acquire images in the field. It has so far been used in grapevine research for different research questions to test and apply different senso
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Savichenko, V. G., and S. A. Ramazanova. "THE IDENTIFICATION OF SOYBEAN VARIETIES OF THE BREEDING OF V.S. PUSTOVOIT ALL-RUSSIAN RESEARCH INSTITUTE OF OIL CROPS BY MICROSATELLITE ANALYSIS." In 11-я Всероссийская конференция молодых учёных и специалистов «Актуальные вопросы биологии, селекции, технологии возделывания и переработки сельскохозяйственных культур». V.S. Pustovoit All-Russian Research Institute of Oil Crops, 2021. http://dx.doi.org/10.25230/conf11-2021-97-101.

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The identification of breeding material and certification of varieties is of great importance for the protection of the copyright of breeders. Microsatellite DNA loci are effectively used for these purposes. The aim of the research was to identify the soybean varieties of the breeding of V.S. Pustovoit All-Russian Research Institute of Oil Crops using the previously tested 12 microsatellite markers. As a result of research, we obtained the unique sets of alleles for eight varieties; two varieties had identical alleles. We divided all soybean genotypes into two large clusters. We observed the c
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Reports on the topic "Cluster varieties"

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Moving from tools to deliverables and outcomes. Proceedings of the annual meeting of cluster CC2.1 (Improving RTB planting material and access to new varieties). International Potato Center, 2018. http://dx.doi.org/10.4160/rtb-wr-20181.

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