Parental selection of vocal behavior

Human Nature ◽  
2006 ◽  
Vol 17 (2) ◽  
pp. 155-168 ◽  
Author(s):  
John L. Locke
Keyword(s):  
Vocal Behavior ◽  
Parental Selection ◽  
Selection Of

scholarly journals CAPACIDADE COMBINATÓRIA DE LINHAGENS E SELEÇÃO DE HÍBRIDOS DE SORGO GRANÍFERO

2017 ◽  
Vol 16 (3) ◽  
pp. 509 ◽  
Author(s):  
CÍCERO BESERRA MENEZES ◽  
CRISLENE VIEIRA DOS SANTOS ◽  
DOUGLAS CIRINO SALDANHA ◽  
MARCOS PAULO MINGOTE JÚLIO ◽  
KARLA JORGE DA SILVA ◽  
...  
Keyword(s):  
Grain Yield ◽  
Sorghum Bicolor ◽  
Plant Height ◽  
Grain Sorghum ◽  
Male Sterile ◽  
Crop Breeding ◽  
Parental Selection ◽  
High Yields ◽  
Selection Of ◽  
Partial Diallel

RESUMO - O objetivo do presente trabalho foi selecionar parentais e híbridos de sorgo granífero para características agronômicas. Foram avaliados 184 cruzamentos oriundos de um dialelo parcial envolvendo 16 linhagens macho-estéreis e 12 restauradoras da fertilidade. Foram realizados 8 experimentos, com 23 híbridos cada e duas testemunhas adicionais (BRS 304 e BRS 330), em blocos casualizados, com duas repetições. Foram avaliadas as características rendimento de grãos, florescimento e altura de plantas. Os efeitos de CGC e CEC foram significativos para as três características, mostrando a importância dos efeitos aditivos e dominantes no controle destes caracteres. O quadrado médio para CGC foi superior ao da CEC. Todos os parentais que contribuíram para aumentar o rendimento de grãos também o fizeram para altura de plantas, exceto pelos parentais femininos CMSXS 1006 e CMSXS 1011, mostrando a dificuldade de dissociar estas duas características. Os híbridos mais produtivos apresentaram altura de plantas acima do recomendado para sorgo granífero, mesmo assim foi possível a seleção de cruzamentos que apresentaram rendimento de grãos acima da média, florescimento abaixo da média e altura dentro do padrão exigido. Dentre estes, pode-se destacar os híbridos CMSXS 1002 x CMSXS 1102, CMSXS 1006 x RTx2907, ATx ARG 1 x SC1155 e CMSXS 1008 x Tx2741.Palavras-chave: Sorghum bicolor, seleção de parentais, dialelo, hibridação, melhoramento de plantas. COMBINING ABILITY OF LINES AND SELECTION OF GRAIN SORGHUM HYBRIDS  ABSTRACT - The purpose of this work was to select grain sorghum lines and hybrids for growing as succession crop. Crosses, coming from a partial diallel involving 16 male sterile lines and 12 restorer lines, were evaluated. Eight experiments were carried out with 23 hybrids each and two additional checks (BRS 304 and BRS 330) in randomize complete blocks design, with two replications and plot of two lines of five meters long. Grain yield, days to flowering and plant height were evaluated. The effects of GCA and SCA were significant, showing the importance of both additive and dominant effects in the control of these traits. The mean square for GCA was well above the SCA, suggesting the importance of parental selection in sorghum. Only the lines CMSXS 1006 and CMSXS 1011 contributed to rise grain yield without increasing the plant height in the hybrids they compose. The most productive hybrids showed plants above 150 cm, however it was still possible to get crossings that had yield above average, cycle below average and plant height within the standard required for grain sorghum. Among these are the hybrids CMSXS 1002 x CMSXS 1102, CMSXS 1006 x RTx2907, ATX ARG 1 x SC1155 and CMSXS 1008 x Tx2741, with high yields and CEC.Keywords: Sorghum bicolor, parental selection, diallel, hybridization, crop breeding.

Implementation of Molecular Markers Diversity in Parental Selection of Alfalfa (Medicago SativaL.) Germplasm

2011 ◽  
Vol 25 (2) ◽  
pp. 2310-2314 ◽  
Author(s):  
Marijana Tucak ◽  
Svetislav Popovic ◽  
Sonja Grljusic ◽  
Tihomir Cupic ◽  
Snjezana Bolaric
Keyword(s):  
Molecular Markers ◽  
Parental Selection ◽  
Selection Of

scholarly journals Parental selection of wheat lines based on phenotypic characterization and genetic diversity

2013 ◽  
Vol 13 (1) ◽  
pp. 49-58 ◽  
Author(s):  
Alice Casassola ◽  
Sandra Patussi Brammer ◽  
Márcia Soares Chaves ◽  
Paula Wiethölter ◽  
Eduardo Caierão
Keyword(s):  
Genetic Diversity ◽  
Genetic Variability ◽  
Genetic Distance ◽  
Agronomic Traits ◽  
Average Distance ◽  
Phenotypic Characterization ◽  
Breeding Programs ◽  
Parental Selection ◽  
Wheat Lines ◽  
Selection Of

Parental selection is an important step in breeding programs, and genetic variability increases the chances of obtaining variance in progenies. The objectives of this study were to phenotype 29 wheat genotypes and determine the genetic variability among them, in order to identify potential parental lines for breeding programs at Embrapa Wheat. For phenotyping, traits such as plant height, cycle and grains characteristics were assessed and the data were analyzed by the Euclidean distance. The genetic distance was estimated using 97 microsatellite molecular markers and the data were analyzed by Nei72 coefficient. The average distance observed for phenotyping was 10.1, and the genetic distance was 31 %. SSR markers were efficient for selecting genetically diverse genotypes despite their phenotypic similarity, and lines PF 9027, PF 950351, PF 030132, PF 979002, PF 040488 and IWT 04019 can be used as parental for future crosses, since they have genetic diversity and suitable agronomic traits.

Cognitive gadgets and cognitive priors

2019 ◽  
Vol 42 ◽  
Author(s):  
Gian Domenico Iannetti ◽  
Giorgio Vallortigara
Keyword(s):  
Cognitive Neuroscience ◽  
Selection Of

Abstract Some of the foundations of Heyes’ radical reasoning seem to be based on a fractional selection of available evidence. Using an ethological perspective, we argue against Heyes’ rapid dismissal of innate cognitive instincts. Heyes’ use of fMRI studies of literacy to claim that culture assembles pieces of mental technology seems an example of incorrect reverse inferences and overlap theories pervasive in cognitive neuroscience.

Note on Selection of Coordinate Systems for Geodynamics

1975 ◽  
Vol 26 ◽  
pp. 395-407
Author(s):  
S. Henriksen
Keyword(s):  
Sea Level ◽  
The Other ◽  
Coordinate Systems ◽  
Mean Sea Level ◽  
The Earth ◽  
The One ◽  
Static Systems ◽  
Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

Measurements of the Cape Astrometric Survey of the Southern Hemisphere

1978 ◽  
Vol 48 ◽  
pp. 515-521
Author(s):  
W. Nicholson
Keyword(s):  
Southern Hemisphere ◽  
Automatic Measuring ◽  
Measuring Machine ◽  
Final Selection ◽  
Selection Of

SummaryA routine has been developed for the processing of the 5820 plates of the survey. The plates are measured on the automatic measuring machine, GALAXY, and the measures are subsequently processed by computer, to edit and then refer them to the SAO catalogue. A start has been made on measuring the plates, but the final selection of stars to be made is still a matter for discussion.

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

Selection and Preparation of Specific Tissue Regions For Tem Using Large Epoxy-Embedded Blocks

1973 ◽  
Vol 31 ◽  
pp. 324-325 ◽  
Author(s):  
P. M. Lowrie ◽  
W. S. Tyler
Keyword(s):  
Electron Microscopy ◽  
Anatomical Structures ◽  
Ultrastructural Studies ◽  
Transmission Electron ◽  
Microscopic Evaluation ◽  
Embedded Blocks ◽  
Specific Tissue ◽  
Definition Of ◽  
Areas Of Interest ◽  
Selection Of

The importance of examining stained 1 to 2μ plastic sections by light microscopy has long been recognized, both for increased definition of many histologic features and for selection of specimen samples to be used in ultrastructural studies. Selection of specimens with specific orien ation relative to anatomical structures becomes of critical importance in ultrastructural investigations of organs such as the lung. The uantity of blocks necessary to locate special areas of interest by random sampling is large, however, and the method is lacking in precision. Several methods have been described for selection of specific areas for electron microscopy using light microscopic evaluation of paraffin, epoxy-infiltrated, or epoxy-embedded large blocks from which thick sections were cut. Selected areas from these thick sections were subsequently removed and re-embedded or attached to blank precasted blocks and resectioned for transmission electron microscopy (TEM).

The DQE of an electron image recording system

1978 ◽  
Vol 36 (1) ◽  
pp. 100-101
Author(s):  
K.-H. Herrmann ◽  
D. Krahl ◽  
H.-P Rust
Keyword(s):  
Primary Electron ◽  
Ideal Case ◽  
Image Recording ◽  
Main Requirement ◽  
High Detection ◽  
Electron Image ◽  
Video Amplifier ◽  
Detection Quantum Efficiency ◽  
Selection Of ◽  
The Ideal

The high detection quantum efficiency (DQE) is the main requirement for an imagerecording system used in electron microscopy of radiation-sensitive specimens. An electronic TV system of the type shown in Fig. 1 fulfills these conditions and can be used for either analog or digital image storage and processing [1], Several sources of noise may reduce the DQE, and therefore a careful selection of various elements is imperative.The noise of target and of video amplifier can be neglected when the converter stages produce sufficient target electrons per incident primary electron. The required gain depends on the type of the tube and also on the type of the signal processing chosen. For EBS tubes, for example, it exceeds 10. The ideal case, in which all impinging electrons create uniform charge peaks at the target, is not obtainable for several reasons, and these will be discussed as they relate to a system with a scintillator, fiber-optic and photo-cathode combination as the first stage.

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