scholarly journals Morphological characterization and analysis of genetic variability among pepper accessions

2016 ◽  
Vol 46 (7) ◽  
pp. 1151-1157 ◽  
Author(s):  
Paola Alvares Bianchi ◽  
Iris Petronilia Dutra ◽  
Monique Moreira Moulin ◽  
Jardel Oliveira Santos ◽  
Alexandre Cristiano Santos Júnior
Keyword(s):  
Genetic Variability ◽  
Genetic Divergence ◽  
Morphological Characterization ◽  
Economic Potential ◽  
Morphological Descriptors ◽  
Espírito Santo ◽  
Relative Contribution ◽  
Grouping Method ◽  
Total Divergence ◽  
Espirito Santo

ABSTRACT: The peppers of the genus Capsicumhave economic potential and elevated genetic variability. The objective of the study was to characterize morpho-agronomically and estimate the genetic divergence among pepper accessions of the active germplasm bank of Capsicumof the Instituto Federal do Espírito Santo, Campus Alegre. Thirty accessions were characterized based on ten morphological descriptors being the experimental design completely randomized, with six repetitions. Genetic diversity among the accessions was estimated by the Tocher grouping method as a measurement of dissimilarity and formed eight groups. The Singh method, used to estimate the relative contribution of each character in the expression of genetic divergence, indicated that the diameter of the produce (20.19%) and the height of the plant (19.46%) were the ones to contribute most to the total divergence (39.65%) among the accessions of pepper being studied. The study evidenced the existence of high genetic variability among the accessions of C. annuumcollected in the south region of the state of Espírito Santo. No correlation was detected between the genetic distance and location of collections.

GENETIC DIVERGENCE OF RED MOMBIN IN THE NORTH OF ESPÍRITO SANTO STATE, BRAZIL

Nucleus ◽  
2016 ◽  
Vol 13 (1) ◽  
pp. 143-152
Author(s):  
Anna Caroline Brinco Rocha ◽  
Layane Segantini Oliari ◽  
Letícia Abreu Simão ◽  
Juliany Morosini França ◽  
João Antônio Dutra Giles ◽  
...  
Keyword(s):  
Genetic Divergence ◽  
Espírito Santo ◽  
The North ◽  
Espirito Santo

scholarly journals Genetic diversity in accessions of melon belonging to momordica group

2018 ◽  
Vol 36 (2) ◽  
pp. 253-258
Author(s):  
Ricardo N Valadares ◽  
Roberto A Melo ◽  
Isabel VF Sarinho ◽  
Natália S Oliveira ◽  
Fernando AT Rocha ◽  
...  
Keyword(s):  
Genetic Divergence ◽  
Morphological Characters ◽  
Solid Content ◽  
Soluble Solid Content ◽  
Multivariate Techniques ◽  
Morphological Descriptors ◽  
Seed Length ◽  
Dissimilarity Matrix ◽  
Relative Contribution ◽  
Soluble Solid

ABSTRACT The genetic divergence of melon genotypes belonging to momordica group, collected in five Brazilian States, was estimated, and the relative contribution of the morphological characters was determined for the genetic variability. The experimental design was randomized blocks, with four replicates. We evaluated 19 accessions of melon, momordica group, two accessions of cantaloupensis group and two commercial cultivars of inodorus group. These genotypes were characterized by 42 morphological descriptors. The data were submitted to Tocher and UPGMA grouping methods using the genetic dissimilarity matrix, using Mahalanobis’ distance. Singh criterion was used to identify the relative contribution of each character to the genetic divergence. Four groups of similarity were obtained in both multivariate techniques, with agreement between hierarchical UPGMA and Tocher grouping methods. The characters: pistil scar size, soluble solid content, seed length, fruit length and cotyledon length contributed with approximately 53.86% to genetic divergence among genotypes.

Genetic variability, association studies and genetic divergence in Indian fenugreek (Trigonella foenum- graecum L.) varieties

2018 ◽  
Author(s):  
Alka Panwar ◽  
Y.K. K. Sharma ◽  
R. S. Meena ◽  
R. K. Solanki ◽  
O. P. Aishwath ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Genetic Divergence ◽  
Association Studies ◽  
Test Weight ◽  
Trigonella Foenum Graecum ◽  
Cluster Distance ◽  
Total Divergence ◽  
Trigonella Foenum Graecum L

Indian fenugreek (Trigonella foenum-graecum L.) varieties were biometrically studied for seed yield and yield contributing traits to assess genetic variability, character association and genetic divergence. Highly significant differences between varieties for all the studied traits were observed. Pooled results illustrated high estimates of PCV along with GCV for number of branches per plant, test weight, number of pods per plant, number of nodules per plant, plant height and seed yield per plant. High heritability along with genetic advance was recorded for plant height and test weight. Association studies showed highly significant positive correlation and high direct effect of test weight, plant height and number of pods per plant on seed yield. Diversity analysis grouped the set of 17 varieties into two clusters and there was lack of parallelism between genetic and geographic diversities. Intra cluster distance was the highest in cluster I than cluster II. Test weight (37.50%) contributed the maximum to total divergence, followed by plant height.

scholarly journals Morphological characterization of fruits and seeds of Ruellia furcata (Nees) Lindau (Acanthaceae) from Espírito Santo State, Brazil

2020 ◽  
Vol 3 (3) ◽  
pp. 65-68
Author(s):  
Mariana Maciel Monteiro ◽  
Alexandre Indriunas ◽  
Elisa Mitsuko Aoyama
Keyword(s):  
Morphological Characterization ◽  
Morphological Features ◽  
Wide Spread ◽  
Espírito Santo ◽  
Total Length ◽  
Length Width ◽  
Espirito Santo

Acanthaceae is a wide spread family with usually capsular fruits, with two valves and explosive dehiscence containing two or more seeds. The morphological features of fruits and seeds are important in the identification at supra especific level, since they vary morphologically. Thus, this study aimed to characterize the morphology of the fruits and seeds of Ruellia furcata. This species is endemic to Brazil and restrict to restinga areas. The collection was carried out with the aid of a gauze type fabric. The fruits were measured in length of the sterile and fertile portion, total length, width, thickness, and retinacula height. The seeds were measured in length, width and thickness. For description, internal and external details were pointed. The fruits and seeds of R. furcata present morphological features that are commonly found in the genus however, its characteristics allow it to be positioned taxonomically and provide an understanding of its dispersion.

scholarly journals Characterization of genetic variability among common bean genotypes by morphological descriptors

2012 ◽  
Vol 12 (1) ◽  
pp. 76-84 ◽  
Author(s):  
Marilene Santos de Lima ◽  
José Eustáquio de Souza Carneiro ◽  
Pedro Crescêncio Souza Carneiro ◽  
Camila Santana Pereira ◽  
Rogério Faria Vieira ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Variability ◽  
Common Bean ◽  
Genetic Divergence ◽  
Genetic Similarity ◽  
Morphological Descriptors ◽  
Germplasm Bank ◽  
Breeding Programs ◽  
Genetic Dissimilarity

The purpose of this study was to characterize the genetic variability in 100 genotypes of the Active Germplasm Bank of common bean of the Federal University of Viçosa, by morphological descriptors, classify them in groups of genetic similarity and to identify the degree of relevance of descriptors of genetic divergence. The genotypes were evaluated based on 22 quantitative and qualitative morphological descriptors. The high-yielding genotypes V 7936, Gold Gate, LM 95103904, 1829 S 349 Venezuela, and PF 9029975, CNFC 9454 and Fe 732015, with upright growth, have potential for use as parents in common bean breeding programs. By genetic divergence analysis, the genotypes were clustered in eight groups of genetic dissimilarity. By methods of principal components, 9 of the 22 descriptors were eliminated, for being redundant or little variable, suggesting that 10-20 morphological descriptors can be used in studies of characterization of genetic variation.

scholarly journals Physical and chemical characterization of sweet passion fruits genotypes in Sao Mateus, Espírito Santo State, Brazil

2018 ◽  
Vol 9 (3) ◽  
pp. 363-371
Author(s):  
Rodrigo Sobreira Alexandre ◽  
Kleber Rogeres Monteiro Junior ◽  
Kristhiano Chagas ◽  
André Lucas Siqueira ◽  
Edilson Romais Schmildt ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Block Design ◽  
Passion Fruit ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Fresh Market ◽  
Passiflora Edulis ◽  
Espírito Santo ◽  
Espirito Santo ◽  
Physical And Chemical

In Brazil 95% of the passion fruit marketed comes from the species Passiflora edulis f. flavicarpa (yellow passion fruit), the remainder are Passiflora edulis f. edulis (purple passion fruit) and Passiflora alata (sweet passion fruit), considered market niches. Because of the wide genetic variability the genus Passiflora, it is of fundamental importance to identify superior genotypes to improve the quality of fruit for the fresh market. The objective is to analyze the physical and chemical characteristics of the fruits of 33 genotypes P. alata Curtis, evaluated in a randomized complete block design with two replicates of four plants, from native matrices, located at the experimental farm of the University Center of the North of Espírito Santo, Federal University of Espírito Santo, in the Northern Region of the state of Espírito Santo, São Mateus -ES. Thirty-two mature fruits were collected in each replicate, eight per plant and the following characteristics were analyzed: fruit weight (g); equatorial and polar diameter of fruit (cm); peel thickness (mm); mass of the pulp (g); pulp volume (mL); pulp yield (%); number of seeds per fruit, pH; soluble solids (SS); titratable acidity (TA) and ratio (SS/TA). There is a wide genetic variability among P. alata genotypes as to the traits assessed. Genotypes 4, 6, 8, 11, 15, 18, 21, 25 and 26 stood out among the rest, and is therefore recommended for new plantings and future breeding programs.

scholarly journals Genetic divergence of Heliconiaceae species in the Central West Brazil region

2017 ◽  
Vol 35 (3) ◽  
pp. 285-292
Author(s):  
Cintia Graciele Da Silva ◽  
Edneia Zullian Dalbosco ◽  
Petterson Baptista Da Luz ◽  
Willian Krause ◽  
Vivian Loges ◽  
...  
Keyword(s):  
Genetic Variability ◽  
Genetic Divergence ◽  
Quantitative Traits ◽  
Group Method ◽  
Clustering Methods ◽  
Breeding Programs ◽  
Mato Grosso ◽  
Relative Contribution ◽  
Pair Group ◽  
Inflorescence Length

The purpose of this study was to describe morphological traits and estimate genetic divergence and parameters between accessions of the genus Heliconia sp. from different municipalities in the state of Mato Grosso, Brazil. A set of 25 traits, 15 quantitative and 10 qualitative were evaluated. The genetic divergence was estimated based on Mahalanobis' distance, with the clustering methods known as Unweighted Pair Group Method using Arithmetic Averages (UPGMA). Genetic variability was observed for all assessed quantitative traits and the accessions were grouped in different classes. The traits with highest relative contribution to variability were longevity of flower stems and inflorescence length. The results indicated the existence of genetic variability among accessions of the Heliconiasp. germplasm bank, which can be used in breeding programs.

Dalechampia margarethiae (Euphorbiaceae), a New Species from Southeastern Brazil

2019 ◽  
Vol 44 (4) ◽  
pp. 832-837
Author(s):  
Rafaela Alves Pereira-Silva ◽  
Sarah Maria Athiê-Souza ◽  
André Laurênio de Melo ◽  
W. Scott Armbruster
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Floral Resin ◽  
Espirito Santo ◽  
A New Species

Abstract—A new species of Dalechampia from southeastern Brazil, belonging to Dalechampia sect. Dioscoreifoliae, is described and illustrated here. Dalechampia margarethiae is a twining vine occurring exclusively in Espírito Santo state. Its pseudanthia are similar to those of D. peckoltiana and D. pentaphylla, but D. margarethiae differs in a set of important characters, including having cylindrical, down-curved style tips, staminate flowers at anthesis having unreflexed sepals with stamens born on unelongated columns, whitish floral resin, and simple, entire, cordate leaves.

Democracia e participação: explorando o associativismo no Espírito Santo

2018 ◽  
Author(s):  
Anselmo Hudson Siqueira Nascimento ◽  
Riberti de Almeida Felisbino ◽  
Danilo Roberto Pereira Santiago
Keyword(s):  
Espírito Santo ◽  
Espirito Santo

Competência em informação dos contadores de histórias conectados em redes no século XXI

1969 ◽  
Vol 9 (1) ◽  
pp. 285-300
Author(s):  
Meri Nádia Marques Gerlin ◽  
Elmira Luzia Melo Soares Simeão
Keyword(s):  
Espírito Santo ◽  
Distrito Federal ◽  
Espirito Santo

A capacidade de o narrador estabelecer relações com outros sujeitos ao mesmo tempo em que busca, recupera e produz informações, conduz ao aperfeiçoamento do aprendizado de como acessar, avaliar e usar informações específicas de sua área de atuação. Com isso, procede-se a apresentação do objetivo de uma pesquisa que procura identificar as competências em informação que os contadores de histórias contemporâneos possuem e aquelas que são necessárias para uma conexão em redes colaborativas, potencializadas ou não pelas tecnologias de informação e comunicação. Todavia, acredita-se que o domínio das redes digitais se apresenta como um desafio para os atores culturais que durante décadas dominam os mecanismos da comunicação interpessoal. Desenvolvida no âmbito do Doutorado Interinstitucional em Ciência da Informação da Universidade de Brasília e Universidade Federal do Espírito Santo, a pesquisa qualitativa e quantitativa utiliza indicadores de perfil e contexto agrupados em um questionário com a finalidade de identificar competências em informação dos narradores do Distrito Federal. A necessidade de sustentar a atividade dos contadores de histórias perpassa as redes desenhadas na contemporaneidade, o que vai de encontro com uma atuação isolada que não possibilita o compartilhamento das experiências que comumente por eles são vividas. Assim sendo, esses narradores devem adquirir habilidades que os conduzam a produção de conteúdos necessários para acessar e produzir informação na sociedade em que vivem. Também necessitam de uma mudança de foco, de entendimento e de aceitação de outras perspectivas de aprendizado perante o acesso de redes de colaboração digitais e presenciais, para, assim, fazer fluir uma conexão interativa que permita o compartilhamento de informações na sociedade da informação.

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