scholarly journals Reaction of sugarcane genotypes to brown and to orange rust by leaf whorl inoculation

2020 ◽  
Vol 50 (7) ◽  
Author(s):  
Lívia Maria Lemos Hoepers ◽  
Ana Cristina Grade Fiori-Tutida ◽  
Lucimeris Ruaro ◽  
Renata Faier Calegario ◽  
Ricardo Augusto Oliveira ◽  
...  

ABSTRACT: In this research eleven sugarcane genotypes were classified in relation to their resistance to brown rust, and eleven to their resistance to orange rust. Artificial inoculation was carried out in the leaf whorl of 165-day-old plants in the city of Paranavaí, Paraná State, Brazil, in 2017. The evaluation was performed 30 days after inoculation, using a rating scale. Among the genotypes tested for brown rust, four were classified as susceptible, six as moderately susceptible and one presented moderate resistance. For orange rust, three genotypes were classified as susceptible, seven as moderately susceptible and one as moderately resistant. The evaluation and classification of the reaction of sugarcane genotypes to the rusts is an important tool that assist in preliminary trials and selection of promising genotypes for more advanced stages of breeding programs and provides information to producers on the choice of cultivars to be planted.

2021 ◽  
Vol 10 (15) ◽  
Author(s):  
Nádia Elígia Nunes Pinto Paracampo ◽  
Luiz Ricardo Santos de Souza ◽  
Jéssica Caporal Almeida ◽  
Osmar Alves Lameira

The active germplasm bank (AGB) of Carapichea ipecacuanha (Brot.) L. Andersson at Embrapa Eastern Amazon, in the city of Belém, PA, was the first of its kind to be opened in Brazil for this endangered medicinal species and holds important accessions for agricultural and reproductive research, including the production of active principles. This study aimed to chemically characterize 42 accessions from that AGB by simultaneously quantifying cephaeline and emetine contents in roots using high-performance liquid chromatography with a diode-array detector (HPLC-DAD). Cephaeline concentrations ranged from ‘undetected’ to 1.76%, whereas emetine concentrations were found between 0.64% and 2.49%. The overall emetine/cephaeline ratio varied from 0.43 to 3.52. The differences among mean concentrations of alkaloids observed by comparing the Scott-Knott test at 5% probability suggest the chemical variation among the samples assessed. Therefore, it is concluded such chemical differences may favor the selection of genetic material for commercial purposes based on the production of emetine and/or cephaeline, likewise may contribute to breeding programs.


2003 ◽  
Vol 128 (5) ◽  
pp. 711-720 ◽  
Author(s):  
Yan Wang ◽  
Stanley J. Kays

Flavor quality is one of the most difficult traits to select in plant breeding programs due to the large number of sensory panelists required, the small number of samples that can be evaluated per day, and the subjectivity of the results. Using sweetpotato [Ipomoea batatas (L.) Lam.] as a model, clones exhibiting distinctly different flavors were analyzed for sugars, nonvolatile acids, and aroma chemistry to identify the critical flavor components. Differences in sugars, sucrose equivalents, nonvolatile acids, and 19 odor-active compounds were identified that accounted for differences in flavor among the clones. Using the intensity of the aroma per microliter for each of the 17 most important aroma-active compounds (maltol, 5-methyl-2-furfural, 2-acetyl furan, 3-furaldehyde, 2-furmethanol, benzaldehyde, phenylacetaldehyde, β-ionone, 1,2,4-trimethyl benzene, 2-pentyl furan, 2,4-decadienal, 2,4-nonadienal, linalool, geraniol, cyperene, α-copane and a sesquiterpene) and the relative sweetness of individual sugars × their respective concentrations, multivariate (principal component and cluster) analysis allowed accurate classification of the clones according to flavor type without sensory analysis. The level of precision was such that sweetness, starch hydrolysis potential, and the concentration of β-carotene could be accurately predicted by quantifying specific volatiles. Analytical assessment of flavor would greatly facilitate the accurate evaluation of large numbers of progeny, the simultaneous selection of multiple flavor types, and the development of superior new cultivars for a wide cross-section of food crops.


polemica ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 073-092
Author(s):  
Thalisson Vieira dos Santos ◽  
Matheus Lima Schneider ◽  
Rafaella Cristina Campos ◽  
Giuliano Roberto Da Silva

Resumo: O objetivo deste estudo foi analisar quais são os fatores que determinam a construção da autoimagem de praticantes de musculação. A construção teórica deste trabalho é respaldada em uma busca de artigos científicos na base de indexação SCIELO, objetivando a seleção de outros trabalhos que contribuam para um debate teórico vinculado à temática de imagem corporal. Mesmo sendo um tema crescente em veículos de comunicação de grande circulação, nota-se que o interesse acadêmico na área ainda é insipiente em produções brasileiras, com foco na área da psicologia com intercessão à educação física, mas ainda assim voltado à uma noção patológica e diagnóstica e não considerando a autoimagem como um movimento em construção. A natureza deste estudo é exploratória, contendo 30 respondentes da cidade de Nepomuceno-MG, dos seguintes instrumentos: Body Shape Questionnaire (BSQ) e Figure Rating Scale (FRS). A análise de dados é quanti-qualitativa e a discussão dos dados realizada a partir de análise de conteúdo por grade fixa. Conclui-se que a construção da autoimagem depende das influências socioculturais sob a racionalização individual e que mais importante do que ter o corpo desejado é exibir medidas, mesmo que manipuladas, cabíveis a estas cobranças e influências.Isso mostra como a autoimagem é construída por meio e para o outro, e não meramente para nós mesmos.Palavras-chave: Autoimagem. Representação. Corpo.Abstract: The main goal of this article it is to analyze which are the factors that determent the construction of the self-image in body building practitioners. The theoretical construction of this paper is based on the research of scientifically articles on the SCIELO data base with inclusion/exclusion criterias detailed on this paper later on, objectifying the selection of other papers that approach and contribute with the discussion about self-image. However, even though this is an up growing theme showed, the data base consulted shows that there are few researchers interested on this subject and that makes this kind of theme incipient. There are few articles in Portuguese that considers the Brazilian reality about self-image construction and the focus areas are psychology and physical education, but still considering diagnostic and pathology approaches instead of considering self-image as a constructive movement. The nature of this study is exploratory containing thirty respondents collected in the city of Nepomuceno in Minas Gerais, of two instruments: Body Shape Questionnaire (BSQ) and Figure Rating Scale (FRS). The analysis of the collected data is both qualitative and quantitative approaches and was realized on bases of contained analysis by closed web. It´s conclude that the construction of the self-image depends on the social and culture influences under a subjective rationalization and that to show of the perfect measures for others is more important than to have the perfect body for yourself. This is the prof that self-imagem is constructed towards others more that to ourselves.Keywords: Self-Image. Representation. Body.


2021 ◽  
Vol 43 ◽  
pp. e51983
Author(s):  
Luiz Henrique Tolentino Santos ◽  
Cibelle Santos Dias ◽  
Lucas Amorim Silveira ◽  
Messulan Rodrigues Meira ◽  
Elisa Susilene Lisboa dos Santos ◽  
...  

The characterization and selection of molecular markers are important for genetic pre-breeding programs since they make it possible to choose the most appropriate markers to be used in future research. Therefore, enabling the generation of subsidies for genetic-molecular studies in algabora (Prosopis juliflora (Sw.) DC). The amplification profile was characterized. It was generated from 17 pairs of RGA primers (Resistance Gene Analogs) in 20 samples of genomic DNA of P. juliflora extracted from specimens collected in the city of Itapetinga, Bahia. The amplifications were performed according to previously published laboratory routines and the amplification profiles analyzed from the photodocumentation of the electrophoresis results in 2% agarose gels. Based on the amplification profiles the primer pairs were classified as: Suitable: amplifications in the whole samples and with easy visualization; Reasonable: amplification in parts of the samples and/or difficult to visualize or Inadequate: absence of visible amplification products. Descriptive analyzes associated with the number of generated markers, percentage of polymorphism, expected heterozygosity (He) and the content of polymorphic information (PIC) were also performed. In a nutshell, 12 out of the 17 pairs of RGA primers generated amplification products with easy visualization and only two of these 12 pairs of primers were monomorphic. The percentage of polymorphism varied from 60% to 100%, He and PIC presented an average of 0.21 (ranging from 0 to 0.38) and 0.17 (ranging from 0 to 0.29), respectively. The results confirm that the RGA primers present adequate characteristics for genetic studies in P. juliflora, making it possible to prioritize 12 pairs of primers, which are subject to genetic improvement studies.


HortScience ◽  
2006 ◽  
Vol 41 (5) ◽  
pp. 1313-1316 ◽  
Author(s):  
Consuelo Martos-Moreno ◽  
Francisco Javier López-Escudero ◽  
Miguel Ángel Blanco-López

The resistance of 33 major olive cultivars to Verticillium dahliae was assessed in four experiments conducted under controlled conditions. Nine-month-old nursery olive plants were inoculated with a defoliating isolate (V117) of V. dahliae. Resistance was evaluated by assessing symptom severity using a 0–4 rating scale and estimating the area under disease progress curves with reference to the maximum value potentially reached over the assessment period (AUDPCP). The percentage of plants killed and that of plants that recovered from the disease were used as additional parameters for classifying the cultivars. Twenty-six of the 33 cultivars were found to be susceptible or extremely susceptible to the defoliating V. dahliae isolate. They exhibited values for AUDPCP higher than 45% with mortality higher than 37.5%. A second group of cultivars, which included `Cipresino', `Koroneiki', `Oblonga', and `Sevillenca', were classified as moderately resistant because they showed an important reduction of the final mean severity values and of values for AUDPCP that ranged from 23% to 42%. `Changlot Real', `Empeltre', and `Frantoio' were resistant to the defoliating isolate of V. dahliae. The resistance of `Empeltre' and `Frantoio', although previously reported, was consistently confirmed, because the two cultivars exhibited no dead plants and had very low values for AUDPCP and final disease. This is the first report of resistance of `Changlot Real' to Verticillium wilt based on ability of the plants to recover from infection and the absence of dead plants. These three cultivars will be useful for inclusion in Verticillium wilt-breeding programs.


2019 ◽  
Vol 1 (7) ◽  
pp. 19-23
Author(s):  
S. I. Surkichin ◽  
N. V. Gryazeva ◽  
L. S. Kholupova ◽  
N. V. Bochkova

The article provides an overview of the use of photodynamic therapy for photodamage of the skin. The causes, pathogenesis and clinical manifestations of skin photodamage are considered. The definition, principle of action of photodynamic therapy, including the sources of light used, the classification of photosensitizers and their main characteristics are given. Analyzed studies that show the effectiveness and comparative evaluation in the selection of various light sources and photosensitizing agents for photodynamic therapy in patients with clinical manifestations of photodamage.


2016 ◽  
Vol 11 (3) ◽  
pp. 217
Author(s):  
Estu Nugroho ◽  
Budi Setyono ◽  
Mochammad Su’eb ◽  
Tri Heru Prihadi

Program pemuliaan ikan mas varietas Punten dilakukan dengan seleksi individu terhadap karakter bobot ikan. Pembentukan populasi dasar untuk kegiatan seleksi dilakukan dengan memijahkan secara massal induk ikan mas yang terdiri atas 20 induk betina dan 21 induk jantan yang dikoleksi dari daerah Punten, Kepanjen (delapan betina dan enam jantan), Kediri (tujuh betina dan 12 jantan), Sragen (27 betina dan 10 jantan), dan Blitar (15 betina dan 11 jantan). Larva umur 10 hari dipelihara selama empat bulan. Selanjutnya dilakukan penjarangan sebesar 50% dan benih dipelihara selama 14 bulan untuk dilakukan seleksi dengan panduan hasil sampling 250 ekor individu setiap populasi. Seleksi terhadap calon induk dilakukan saat umur 18 bulan pada populasi jantan dan betina secara terpisah dengan memilih berdasarkan 10% bobot ikan yang terbaik. Calon induk yang terseleksi kemudian dipelihara hingga matang gonad, kemudian dipilih sebanyak 150 pasang dan dipijahkan secara massal. Didapatkan respons positif dari hasil seleksi berdasarkan bobot ikan, yaitu 49,89 g atau 3,66% (populasi ikan jantan) dan 168,47 g atau 11,43% (populasi ikan betina). Nilai heritabilitas untuk bobot ikan adalah 0,238 (jantan) dan 0,505 (betina).Punten carp breeding programs were carried out by individual selection for body weight trait. The base population for selection activities were conducted by mass breeding of parent consisted of 20 female and 21 male collected from area Punten, eight female and six male (Kepanjen), seven female and 12 male (Kediri), 27 female and 10 male (Sragen), 15 female and 11 male (Blitar). Larvae 10 days old reared for four moths. Then after spacing out 50% of total harvest, the offspring reared for 14 months for selection activity based on the sampling of 250 individual each population. Selection of broodstock candidates performed since 18 months age on male and female populations separately by selecting based on 10% of fish with best body weight. Candidates selected broodstocks were then maintained until mature. In oder to produce the next generation 150 pairs were sets and held for mass spawning. The results revealed that selection response were positive, 49.89 g (3.66%) for male and 168.47 (11.43%) for female. Heritability for body weight is 0.238 (male) and 0.505 (female).


Author(s):  
Muhammad Ghifari Arfananda ◽  
◽  
Surya Michrandi Nasution ◽  
Casi Setianingsih ◽  
◽  
...  

The rapid development of information and technology, the city of Bandung tourism has also increased. However, tourists who visit the city of Bandung have problems with a limited time when visiting Bandung tourist attractions. Traffic congestion, distance, and the number of tourist destinations are the problems for tourists travel. The optimal route selection is the solution for those problems. Congestion and distance data are processed using the Simple Additive Weighting (SAW) method. Route selection uses the Floyd-Warshall Algorithm. In this study, the selection of the best route gets the smallest weight with a value of 5.127 from the Algorithm process. Based on testing, from two to five tourist attractions get an average calculation time of 3 to 5 seconds. This application is expected to provide optimal solutions for tourists in the selection of tourist travel routes.


2020 ◽  
Vol 3 (152) ◽  
pp. 92-99
Author(s):  
S. M. Geiko ◽  
◽  
O. D. Lauta

The article provides a philosophical analysis of the tropological theory of the history of H. White. The researcher claims that history is a specific kind of literature, and the historical works is the connection of a certain set of research and narrative operations. The first type of operation answers the question of why the event happened this way and not the other. The second operation is the social description, the narrative of events, the intellectual act of organizing the actual material. According to H. White, this is where the set of ideas and preferences of the researcher begin to work, mainly of a literary and historical nature. Explanations are the main mechanism that becomes the common thread of the narrative. The are implemented through using plot (romantic, satire, comic and tragic) and trope systems – the main stylistic forms of text organization (metaphor, metonymy, synecdoche, irony). The latter decisively influenced for result of the work historians. Historiographical style follows the tropological model, the selection of which is determined by the historian’s individual language practice. When the choice is made, the imagination is ready to create a narrative. Therefore, the historical understanding, according to H. White, can only be tropological. H. White proposes a new methodology for historical research. During the discourse, adequate speech is created to analyze historical phenomena, which the philosopher defines as prefigurative tropological movement. This is how history is revealed through the art of anthropology. Thus, H. White’s tropical history theory offers modern science f meaningful and metatheoretically significant. The structure of concepts on which the classification of historiographical styles can be based and the predictive function of philosophy regarding historical knowledge can be refined.


ARTic ◽  
2019 ◽  
Vol 4 ◽  
pp. 167-176
Author(s):  
Risti Puspita Sari Hunowu

This research is aimed at studying the Hunto Sultan Amay Mosque located in Gorontalo City. Hunto Sultan Amay Mosque is the oldest mosque in the city of Gorontalo The Hunto Sultan Amay Mosque was built as proof of Sultan Amay's love for a daughter and is a representation of Islam in Gorontalo. Researchers will investigate the visual form of the Hunto Sultan Amay Mosque which was originally like an ancient mosque in the archipelago. can be seen from the shape of the roof which initially used an overlapping roof and then converted into a dome as well as mosques in the world, we can be sure the Hunto Sultan Amay Mosque uses a dome roof after the arrival of Dutch Colonial. The researcher used a qualitative method by observing the existing form in detail from the building of the mosque with an aesthetic approach, reviewing objects and selecting the selected ornament giving a classification of the shapes, so that the section became a reference for the author as research material. Based on the analysis of this thesis, the form  of the Hunto Sultan Amay mosque as well as the mosques located in the archipelago and the existence of ornaments in the Hunto Sultan Amay Mosque as a decorative structure support the grandeur of a mosque. On the other hand, Hunto Mosque ornaments reveal a teaching. The form of a teaching is manifested in the form of motives and does not depict living beings in a realist or naturalist manner. the decorative forms of the Hunto Sultan Sultan Mosque in general tend to lead to a form of flora, geometric ornaments, and ornament of calligraphy dominated by the distinctive colors of Islam, namely gold, white, red, yellow and green.


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