Harmonic Mean
Mostrando 1-12 de 61 artigos, teses e dissertações.
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1. Selection of high-yielding, adapted and stable wheat lines in preliminary trials
Abstract Experimental design without replication, such as Federer's augmented block design, allows us to determine productivity, adaptability and stability in multi-environment trials. This work aimed to select productive wheat lines with high adaptability and stability in preliminary trials. The grain yield of 140 homozygous wheat lines was measured in 2015
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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2. Genotype x environment interaction, adaptability and stability of ‘Piel de Sapo’ melon hybrids through mixed models
Abstract The aim of this study was to evaluate the genotypic performance of twelve Piel de Sapo melon hybrids in the Mossoró-Assú agricultural region, state of Rio Grande do Norte, Brazil, using mixed models. Adaptability and stability of the predicted genotypic values were studied by the Harmonic Mean of the Relative Performance of Genotypic Values (HMRPG
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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3. Stability, adaptability and shelf life of Cantaloupe melon hybrids
Resumo A adoção de híbridos de melão pelo setor produtivo requer uma prévia avaliação quanto à produtividade, qualidade e vida útil pós-colheita de seus frutos. Devido as diferentes condições ambientais em que os híbridos são avaliados, espera-se que ocorra acentuada interação genótipos x ambientes e que a mesma tenha um importante papel na
Rev. Bras. Frutic.. Publicado em: 04/11/2019
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4. Uni- and multivariate methods applied to the study of the adaptability and stability of white oat
Resumo: O objetivo deste trabalho foi comparar o uso de métodos biométricos uni e multivariados na avaliação da adaptabilidade e da estabilidade de um importante grupo de cultivares de aveia-branca (Avena sativa), cultivadas no Sul do Brasil. Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo fatorial 12 ambientes x 7 cultivares, com
Pesq. agropec. bras.. Publicado em: 14/10/2019
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5. Selection and recommend of quinoa (Chenopodium quinoa) genotypes based on the yield genotypic adaptability and stability
ABSTRACT The present study aimed to select and recommend quinoa genotypes based on the yield genotypic adaptability and stability, by the method of the Harmonic mean of relative performance of genotypic values. Five experiments were conducted during the crop seasons of 2014 and 2015 in two locations in the Western region of Paraná State, Brazil. This study
Rev. Ceres. Publicado em: 06/06/2019
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6. Accuracy and simultaneous selection gains for N-stress tolerance and N-use efficiency in maize tropical lines
ABSTRACT Maize plants can be N-use efficient or N-stress tolerant. The first have high yields in favorable environments but is drastically affected under stress conditions; whereas the second show satisfactory yields in stressful environments but only moderate ones under optimal conditions. In this context, our aim was to assess the possibility of selecting
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-12
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7. Selection of cotton genotypes for greater length of fibers
Abstract In cotton breeding programs, it is necessary to identify genotypes with predictable behavior on the length of fibers, and which are responsive to environmental variations, in specific or broad conditions. The aim of this study was to employ the methodology of mixed models for simultaneous selection of cotton genotypes with greater length of fibers,
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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8. Advertisement call of Dendropsophus microps (Anura: Hylidae) from two populations from southeastern Brazil
In anurans, acoustic communication is a major mechanism of pre-zygotic isolation, since it carries information about species recognition. Detailed descriptions of the acoustic properties of anuran advertisement calls provide important data to taxonomist and to the understanding of the evolution of the group. Herein we re-describe the advertisement call of th
Zoologia (Curitiba). Publicado em: 2015-06
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9. Genetic evaluation of grain sorghum hybrids in Brazilian environments using the REML/BLUP procedure
When it comes to recommending sorghum (Sorghum bicolor) cultivars, it is essential to carry out a genetic evaluation of the agronomic traits of promising genotypes from several common environments where the crop is cultivated. This study consisted of a genetic evaluation of 52 experimental grain sorghum hybrids and eight commercial cultivars. Hybrids were ev
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04
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10. Breeding new sugarcane clones by mixed models under genotype by environmental interaction
Sugarcane (Saccharum spp.) is one of the most important crops cultivated in the tropics and subtropics and plays a significant economic and environmental role in Brazil. Twentyfour new clones were evaluated in different locations as potential models for recommendation as new varieties. The mixed model methodology, using the harmonic mean of the relative perf
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-02
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11. Chromatic spatial contrast sensitivity estimated by visual evoked cortical potential and psychophysics
The purpose of the present study was to measure contrast sensitivity to equiluminant gratings using steady-state visual evoked cortical potential (ssVECP) and psychophysics. Six healthy volunteers were evaluated with ssVECPs and psychophysics. The visual stimuli were red-green or blue-yellow horizontal sinusoidal gratings, 5° × 5°, 34.3 cd/m2 mean luminan
Braz J Med Biol Res. Publicado em: 01/02/2013
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12. The complete mitochondrial genome of the small yellow croaker and partitioned Bayesian analysis of Sciaenidae fish phylogeny
To understand the phylogenetic position of Larimichthys polyactis within the family Sciaenidae and the phylogeny of this family, the organization of the mitochondrial genome of small yellow croaker was determined herein. The complete, 16,470 bp long, mitochondrial genome contains 37 mitochondrial genes (13 protein-coding, 2 ribosomal RNA and 22 transfer RNA
Genetics and Molecular Biology. Publicado em: 20/01/2012