Genetic Variability In Plants
Mostrando 13-24 de 162 artigos, teses e dissertações.
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13. Development of superior lines of papaya from the Formosa group using the pedigree method and REML/Blup procedure
ABSTRACT Developing superior lines based on a simultaneous response from many traits of agronomic importance is a fundamental strategy to expand papaya cultivar supply, mainly the much-needed cultivars belonging to group Formosa. Our goal was to associate the pedigree method with REML/Blup procedure to select plants of progenies F2:3 with superior agronomic
Bragantia. Publicado em: 29/07/2019
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14. Tomato progenies selection in Rondônia, Brazil
RESUMO O objetivo deste trabalho foi selecionar progênies endogâmicas de tomate, a partir da cultivar Yoshimatsu e realizar teste de progênies no estado de Rondônia, seguindo o delineamento de blocos ao acaso com quatro repetições e oito plantas por parcela, num espaçamento de 1x0,5 m, conduzidas com uma haste. Mediante analise dos resultados verifico
Hortic. Bras.. Publicado em: 15/04/2019
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15. Estimates of genetic parameters between and within black oat populations
ABSTRACT The aims of this study were to characterize black oat populations by estimating between- and within-populations variance components and genetic parameters, as well as to distinguish the populations using multivariable statistics. The experiment was carried out in randomized blocks design with three repetitions, with 14 black oat populations collecte
Bragantia. Publicado em: 11/02/2019
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16. Potential of soybean crosses in early inbreeding generations for grain yield
Abstract The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number o
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
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17. Polyphasic characterization of bacteria obtained from upland rice cultivated in Cerrado soil
ABSTRACT This work aimed to characterize 20 isolates obtained from upland rice plants, based on phenotypic (morphology, enzymatic activity, inorganic phosphate solubilization, carbon source use, antagonism), genotypic assays (16S rRNA sequencing) and plant growth promotion. Results showed a great morphological, metabolic and genetic variability among bacteri
Braz. J. Microbiol.. Publicado em: 2018-03
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18. Genetic Resistance to Rust of Eucalyptus urophylla Progenies
ABSTRACT This study assessed the genetic variability in open-pollinated progenies of Eucalyptus urophylla for resistance to rust (Puccinia psidii). The progeny trial was conducted on a statistical randomized block design with 20 progenies, five plants per plot, and nine replications. Analysis of variance showed high genetic variability for the studied trait,
Floresta Ambient.. Publicado em: 01/02/2018
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19. Can the reproductive system of a rare and narrowly endemic plant species explain its high genetic diversity?
ABSTRACT The reproductive system of flowering plants can be highly variable, affecting their biology, gene flow and genetic variability among populations. Petunia secreta is a rare annual endemic species of Pedra do Segredo, located in the municipality of Caçapava do Sul, state of Rio Grande do Sul, Brazil. Although rare, the species possesses a high level
Acta Bot. Bras.. Publicado em: 08/01/2018
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20. A genetic study of traits related to canopy coverage in common bean
Abstract In this study we aimed to investigate genetic control of the emergence speed index (ESI) and percentage of canopy coverage (PCC) in plants, and to evaluate whether these traits can be used to identify common bean plants that rapidly provide canopy coverage. Plants from a segregating population and progenies from a cross between a large leaf line and
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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21. Detection of differentially methylated regions of irradiated fig tree selections
ABSTRACT Fig tree (Ficus carica L.) breeding programs using conventional methods, such as directed crosses, to obtain new cultivars, are unworkable in many countries, including Brazil. Consequently, genetic breeding through mutagenesis has emerged as an important line of research that can improve this crop, and be a significant source of information about th
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-08
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22. Genetic variability of the components of seed yield in interspecific hybrids of Paspalum
ABSTRACT This study aimed to determine the variability and expression of the components of seed yield in twenty-three apomictic Paspalum plicatulum × Paspalum lepton hybrids and two male parent plants (P. lepton). We used a randomized block design with genotypes individually arranged into ten blocks. The variables were: number of total tillers/plant, number
R. Bras. Zootec.. Publicado em: 2017-04
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23. Genetic diversity in populations of Maytenus dasyclada (Celastraceae) in forest reserves and unprotected Araucaria forest remnants
ABSTRACT Understanding the genetic structure and diversity of plants is fundamental to their conservation and permits their sustainable use by local communities. The genus Maytenus (Celastraceae) is composed of plants possessing pharmacological and antioxidant properties. However, the genetic and economic properties of the species M. dasyclada, a typical spe
Acta Bot. Bras.. Publicado em: 13/03/2017
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24. Genetic gain estimated by different selection criteria in guava progenies
Abstract Guava plays an important role in Brazilian agribusiness. Among other goals, guava breeding programs aim to achieve more productive cultivars and improved fruit quality. Thus, the present study aimed to investigate genetic variability in full-sib progenies of Psidium guajava (guava) and estimate the genetic progress obtained from different selection
Bragantia. Publicado em: 29/09/2016