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| Registros recuperados: 18 | |
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| Korzhikenova,N; Sambetbaev,A; Iglikov,O; Parés-Casanova,P. M. |
| The main aim of this study was to estimate phenotypic correlations among live weight, withers height, rump height, chest depth, chest width, thoracic girth, body length, hip widths (between iliac tuberosities and between ischial tuberosities) and forelimb cannon perimeter with antler length measured during the growth of marals on a Kazakh farm. The data comprised 18 animals studied during their growth (at 18 months and at 24 months). In maral, the first period of antler productivity takes place at the age of 24 months. This fact should be taken into account in order to select the best animals for antler production, which is the main purpose for farming this species. |
| Tipo: Journal article |
Palavras-chave: Phenotypic correlation; Maral; Morphological traits. |
| Ano: 2014 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000200031 |
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| VALOIS, A. C. C.; TOSELLO, G. A.; ZONOTTO, M. D.; SCHMIDT, G. S.. |
| RESUMO - Foram utilizadas seis populações de milho (Zea mays L.), sendo duas de grãos do tipo dente opção (uma braquítica), duas de grãos do tipo duro de autofecundação e duas de grãos do tipo duro de meios irmãos. Foram realizadas análises de laboratório, de variância genética e de correlação fenotípica do peso de quinze grãos, percentagem de embrião, de óleo, de proteína e de triptofano. As populações de grãos dentados opacos foram superiores quanto aos conteúdos de óleo, triptofano e valor proteico, enquanto que aquelas com grãos duros de autofecundação mostraram maiores percentagens de proteína, ao passo que as de grãos duros de meios irmãos acusaram maiores possibilidades de incremento através do melhoramento genético, enquanto que a percentagem de... |
| Tipo: Artigo de periódico |
Palavras-chave: Grão; Milho; Melhoramento Genético Vegetal; Zea Mays; Triptofano.; Phenotypic correlation; Tryptophan.; Grains; Plant breeding; Corn. |
| Ano: 1983 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/105031 |
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| TREVISANI,NICOLE; MELO,RITA CAROLINA DE; COLLI,MAURO PORTO; COIMBRA,JEFFERSON LUÍS MEIRELLES; GUIDOLIN,ALTAMIR FREDERICO. |
| ABSTRACT Knowledge about associations between traits is fundamental for plant breeding, since indirect selection can accelerate the development of promising genotypes. This study assessed the magnitude of associations between agronomically important traits in fisális (Physalis peruviana L). The experiment was conducted in Lages, Santa Catarina, and the treatments consisted of six fisális populations. The experiment was arranged in a randomized block design, with two replications and seven plants per plot. The correlations between traits were estimated based on the Pearson correlation coefficients and partitioned into direct and indirect effects through path analysis. Fruit weight was positively correlated with number of seeds (0.874), equatorial fruit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phenotypic correlation; Path analysis; Plant breeding; Physalis peruviana L. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000400801 |
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| Silva,Tallyta Nayara; Moro,Gustavo Vitti; Moro,Fabíola Vitti; Santos,Durvalina Maria Mathias dos; Buzinaro,Rodolfo. |
| ABSTRACT The efficiency of selection can be broadened for certain traits using estimative of genetic parameters, which are fundamental for plant breeding. The estimative of genetic parameters allows identifying the nature of the action of genes involved in the control of quantitative traits and evaluates the efficiency of different breeding strategies to obtain genetic gains. Therefore, this study aimed to verify the variability and correlation between morphological and agronomic traits in synthetic maize populations, in order to practice indirect selection. Thirteen populations were evaluated in field experiments at Jaboticabal- SP and Campo Alegre de Goiás-GO, using randomized block design, for lodging (LOD), culm breakage (CB), plant height (PH), ear... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Phenotypic correlation; Genetic parameters; Direct selection. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000200351 |
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| SANTOS, M. A. V.; ANDRADE JÚNIOR, V. C. de; GUIMARÃES, A. G.; BRITO, O. G.; TAULA, A. J. V.; COSTA, R. A.; ALVES, J. P. R.; SILVA, N. O.; RESENDE, F. V.. |
| ABSTRACT - The objective of this work was to evaluate the phenotypic correlations between agronomic characters of garlic (Allium sativum) and to carry out the path analysis, using commercial bulb yield as the main character. The experiment was conducted under field conditions in two harvests (2018 and 2019) in the municipality of Diamantina, in the state of Minas Gerais, Brazil. A total of 13 garlic genotypes were evaluated, of which 11 were experimental and 2 were commercial cultivars. The experimental design used was randomized complete blocks with four replicates. Characters related to plant biometry and bulb yield were evaluated. The phenotypic correlations and the path analysis of the studied characters were carried out. The Phenotypic correlations... |
| Tipo: Artigo de periódico |
Palavras-chave: Análise de ilha; Alho; Bulbo; Rendimento; Características Agronômicas; Allium Sativum; Phenotypic correlation. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1137554 |
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| MAIA, M. C. C.; ARAUJO, L. B. de; DIAS, C. T. dos S.; OLIVEIRA, L. C. de; VASCONCELOS, L. F. L.; LIMA, P. S. da C.. |
| The mangaba is a fruit tree with great potential for the northeast of Brazil. Due to the scarcity of improved cultivars, and as it is a species that is still in the process of domestication, exploitation has been based on rational and sustainable extractivism by farmer-gatherers. The aim of this study was to analyse the correlations between technological variables of the mangaba, and to carry out an early selection of the genotypes that make up the base population of the mangaba improvement program of Embrapa Meio-Norte. The variables fruit weight, pulp weight and percentage pulp show significant correlation with fruit length and fruit diameter, allowing indirect selection for the first set of variables by means of the latter, which are easily measured.... |
| Tipo: Artigo de periódico |
Palavras-chave: Principal componentes; Mangaba; Phenotypic correlation; Genetic improvement; Principal component analysis. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1121858 |
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| Rahbar, Rabie; Aminafshar, Mehdi; Abdullahpour, Rohullah; Chamani, Mohammad. |
| The edited data set for the estimation of heritability, genetic and phenotypic correlations of fertility traits contained up to 23,402 records from 10,894 cows calved between 2001 and 2015. Heritability estimates for success in first service (FS), gestation length (GL), number of inseminations (NI), insemination outcome (IO), calving interval (CI), calving birth weight (CBW) and days open (DO) were low and ranged between 0.016 (DO) and 0.123 (GL). Repeatability of fertility traits was estimated to vary from 0.021 (FS) to 0.411 (IO). The genetic correlations between DO × CI, DO × NI and CI × NI were positive and nearly perfect (0.98, 0.88 and 0.88, respectively), while those between DO × IO and CI × IO were negative (-0.98 and -1, respectively). Further,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Heritability; Repeatability; Genetic correlation; Phenotypic correlation; Heat stress.. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/31377 |
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| Araújo,Marcelo Renato Alves de; Coulman,Bruce. |
| Meadow bromegrass (Bromus riparius Rehm.) is a recently introduced pasture grass in western Canada. Its leafy production and rapid regrowth have made it a major grass species for pasturing beef animals in this region. As relatively little breeding work has been done on this species, there is little information on its breeding behaviour. The main objective of this study was to estimate total genetic variability, broad-sense heritability, phenotypic and genetic correlations. Forty-four meadow bromegrass clones were evaluated for agronomic characters. Genetic variation for dry matter yield, seed yield, fertility index, harvest index, plant height, plant spread, crude protein, neutral detergent fiber and acid detergent fiber, was significant. Broad-sense... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Perennial grasses; Heritability; Phenotypic correlation; Genotypic correlation. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000200026 |
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| DELGADO, J. P. M.; CHAVES, F. C. M.; LOPES, R.; MENESES, M.; VALENTE, M. S. F.; RODRIGUES, F. A.; PASQUAL, M.; RAMOS, S. F.; AGUIAR, A. V. de; LOPES, M. T. G.. |
| Breeding programs for improvement of sacha-inchi, Plukenetia volubilis L., generally aim to select individuals with greater seed yield since there is a strong correlation between seed yield and oil production. However, the manual removal of seed husks for evaluating this trait is laborious and costly, thereby discouraging breeding efforts. Accordingly, the objective of the present study was to estimate gains from indirect selection of seed production in sacha-inchi progenies, focusing on maximizing efficiency in improvement programs. Genetic parameters along with direct and indirect selection gains were estimated for seed yield traits in 12 open-pollinated progenies. Strong genetic correlations were observed between total number of fruits (TNF), total... |
| Tipo: Artigo de periódico |
Palavras-chave: Nutraceutical species; Amendoim sacha; Sacha inchi; Nutracêutico; Semente; Plukenetia volubilis; Genetic correlation; Phenotypic correlation; Heritability. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147762 |
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| DELGADO, J. P. M.; CHAVES, F. C. M.; LOPES, R.; MENESES, M.; VALENTE, M. S. F.; RODRIGUES, F. A.; PASQUAL, M.; RAMOS, S. F.; AGUIAR, A. V. de; LOPES, M. T. G.. |
| Breeding programs for improvement of sacha-inchi, Plukenetia volubilis L., generally aim to select individuals with greater seed yield since there is a strong correlation between seed yield and oil production. However, the manual removal of seed husks for evaluating this trait is laborious and costly, thereby discouraging breeding efforts. Accordingly, the objective of the present study was to estimate gains from indirect selection of seed production in sacha-inchi progenies, focusing on maximizing efficiency in improvement programs. Genetic parameters along with direct and indirect selection gains were estimated for seed yield traits in 12 open-pollinated progenies. Strong genetic correlations were observed between total number of fruits (TNF), total... |
| Tipo: Artigo de periódico |
Palavras-chave: Nutraceutical species; Amendoim sacha; Sacha inchi; Nutracêutico; Semente; Plukenetia volubilis; Genetic correlation; Phenotypic correlation; Heritability. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147860 |
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| Lorentz,Leandro Homrich; Gaya,Leila de Genova; Lunedo,Raquel; Ferraz,José Bento Sterman; Rezende,Fernanda Marcondes de; Michelan Filho,Tércio. |
| Breast weight has great economic importance in poultry industry, and may be associated with other variables. This work aimed to estimate phenotypic correlations between performance (live body weight at 7 and 28 days, and at slaughter, and depth of the breast muscle measured by ultrasonography), carcass (eviscerated body weight and leg weight) and body composition (heart, liver and abdominal fat weight) traits in a broiler line, and quantify the direct and indirect influence of these traits on breast weight. Path analysis was used by expanding the matrix of partial correlation in coefficients which give the direct influence of one trait on another, regardless the effect of the other traits. The simultaneous maintenance of live body weight at slaughter and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal breeding; Multivariate analysis; Phenotypic correlation; Poultry; Pre-selection. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000300008 |
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| Alcoforado,Ayulle Thalía Watson; Pedrozo,Cássia Ângela; Mayer,Marcos Miguel; Lima-Primo,Hyanameyka Evangelista de. |
| Abstract The objective of this study was to estimate coefficients of repeatability, to determine the minimum number of fruits necessary for genotype selection and to estimate phenotypic correlation coefficients between morpho-agronomic characters of Theobroma grandiflorum fruits. It was evaluated twenty - two genotypes of an agroforestry system implanted in the municipality of Cantá - RR. Ten fruits per genotype were collected and evaluated for longitudinal length, transverse diameter, total weight, peel thickness, peel weight, pulp weight, placental weight and wet seed weight. Four statistical methods were used to estimate the repeatability coefficients: variance analysis, main components based on the correlation matrix and the covariance matrix, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Genetic variability; Selection of genotypes; Phenotypic correlation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000200801 |
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| ATAIDES, K. da S.; SHIOTSUKI, L.; VARELA, E. S.; KIRSCHNIK, L. N. G.; FREITAS, L. E. L. de; VILLELA, L. C. V.; REZENDE, F. P.; TORATI, L. S.. |
| O tambaqui é uma espécie Amazônica amplamente explorada pela aquicultura brasileira. Entretanto, sua produção é feita com base em linhagens não melhoradas geneticamente, uma vez que ainda não foram estabelecidos programas de melhoramento para a espécie. Para começar a reverter este cenário, é fundamental conhecer a variabilidade fenotípica dessas linhagens ou populações. Dessa forma, 22 famílias (n=4335) provenientes de seis estados brasileiros (AM, MT, RO, RR, SP e TO) foram cultivadas nas mesmas condições ambientais, e posteriormente avaliadas quanto à variabilidade morfométrica/fenotípica. Para isso, utilizou-se 12 landmarks posicionados em estruturas fixas no corpo. Análises de componentes principais (PCA) e variância canônica foram realizadas para... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Morfometria; Caracterização fenotípica; Colossoma Macropomum; Tambaqui; Piscicultura; Phenotypic correlation; Morphometry; Fish farms. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1111146 |
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| Silva,Paulo Sérgio Lima e; Tomaz,Francisco Linco de Souza; Siqueira,Patrícia Liany de Oliveira Fernandes; Silva,Paulo Igor Barbosa e; Lima,Levi Afonso Cavalcante de. |
| ABSTRACT Bird attacks on the sunflower may hinder its exploitation in the Brazilian semi-arid region. The aim of this study was to evaluate the effects of different levels of protection (0, 33, 66 and 100%) of the capitula of eight sunflower cultivars, evaluated in randomized blocks with sub-divided plots and four replications. The cultivars were allocated in the plots and the levels of protection in the sub-plots, by covering the capitula with caps of non-woven fabric after physiological maturity. The most frequent bird species was the Paroaria dominicana. The Aguará 06 cultivar was the most productive and most tolerant to bird attack, followed by the Helio 250, CF 101 and Charrua cultivars. There was a positive correlation between yield loss (YL) due to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Helianthus annuus; Paroaria dominicana; Protection of capitula; Phenotypic correlation; Genetic improvement. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100114 |
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| Registros recuperados: 18 | |
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