Correcting experimental data for spatial trends in a common bean breeding program

Crop Science ◽  
2022 ◽  
Author(s):  
Felipe Vicentino Salvador ◽  
Gabriela dos Santos Pereira ◽  
Michel Henriques Souza ◽  
Laiza Maria Bendia da Silva ◽  
Alice Silva Santana ◽  
...  
Keyword(s):  
Experimental Data ◽  
Common Bean ◽  
Breeding Program ◽  
Spatial Trends

scholarly journals Genetic gain in the breeding program of common beans at IAC from 1989 to 2007

2010 ◽  
Vol 10 (4) ◽  
pp. 329-336 ◽  
Author(s):  
Alisson Fernando Chiorato ◽  
Sérgio Augusto Morais Carbonell ◽  
Roland Vencovsky ◽  
Nelson da Silva Fonseca Júnior ◽  
José Baldin Pinheiro
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Genetic Gain ◽  
Grain Quality ◽  
The State ◽  
Breeding Program ◽  
Common Beans ◽  
The Common ◽  
The Mean ◽  
Second Period

The goal of the present work was to evaluate the genetic gain obtained in grain yield for the common bean genotypes from 1989 until 2007, at the Instituto Agronômico de Campinas, in the state of São Paulo. Genetic gain has been separated into two research periods; the first, from 1989 to 1996, and the second, from 1997 to 2007. In the first period, a genetic gain of 1.07 % per year was obtained, whereas for the second period, the gain was zero. However, the mean yield of the evaluated lines was approximately 1000 kg ha-1 superior to the figures obtained in the first period. The main cause for the absence of genetic gain in the second period is that the focus of the breeding program was changed to grain quality. The individualized analysis of the genotypes with carioca grains in the second period indicated the lack of genetic gain during the investigated period.

scholarly journals The research, development, and innovation trajectory of the IAC Common Bean Breeding Program

2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Luiza Maria Capanema Bezerra ◽  
Carlos Eduardo Fredo ◽  
Alisson Fernando Chiorato ◽  
Sérgio Augusto Morais Carbonell
Keyword(s):  
Common Bean ◽  
Breeding Program ◽  
Research Development

Evaluation of a DNA probe for the quantitative detection of common bacterial blight in common bean and its application in a breeding program

Euphytica ◽  
1996 ◽  
Vol 90 (2) ◽  
pp. 129-135 ◽  
Author(s):  
E. Caroline Constabel ◽  
Thomas E. Michaels ◽  
Paul H. Goodwin ◽  
Jorge E. Mayer ◽  
Marclal A. Pastor Corrales
Keyword(s):  
Common Bean ◽  
Bacterial Blight ◽  
Dna Probe ◽  
Breeding Program ◽  
Quantitative Detection ◽  
Common Bacterial Blight

scholarly journals Common bean breeding to improve red grain lines

2011 ◽  
Vol 11 (1) ◽  
pp. 50-58 ◽  
Author(s):  
José Ângelo Nogueira de Menezes Júnior ◽  
José Eustáquio de Souza Carneiro ◽  
Vanessa Maria Pereira e Silva ◽  
Lêlisângela Carvalho da Silva ◽  
Luiz Alexandre Peternelli ◽  
...  
Keyword(s):  
Common Bean ◽  
Recurrent Selection ◽  
Minas Gerais ◽  
Dry Season ◽  
The State ◽  
Breeding Program ◽  
Performance Potential ◽  
The Common ◽  
Red Bean

The purpose of this study was to evaluate the performance potential of red bean lines, derived from populations of the first cycle of recurrent selection in the common bean breeding program of the Federal University of Viçosa, Minas Gerais. In the F3:5, F3:6 and F3:7 generations, 243 families from 18 segregating populations were evaluated. These families were conducted by the bulk-within-families method and from the best, 154 lines were obtained and evaluated in the dry season of 2006 (F7: 9) and of 2007 (F7: 10), Coimbra - MG. The estimates of genetic and phenotypic parameters revealed variability among families. The method bulk within F3-derived families proved useful for bean breeding. The most promising lines that may be included in future tests of value for cultivation and use (VCU), and will possibly be recommended for planting in the state of Minas Gerais, were derived from the populations Vermelhinho/AN9022180//Vermelhinho/Vermelho2157, Vermelhinho//Vermelhinho/ IAPAR81,Vermelhinho/LR720982// Vermelhinho/AB136 and Vermelhinho/AB136//Vermelhinho/ Vermelho2157.

scholarly journals Mejoramiento genético de frijol tipo Andino para Panamá: Resultados de un proyecto de PROFRIJOL. 1993-1996.

2015 ◽  
Vol 10 (1) ◽  
pp. 23
Author(s):  
Emigdio Rodríguez ◽  
Edwin Lorenzo ◽  
Francisco González
Keyword(s):  
Common Bean ◽  
Growth Pattern ◽  
Block Design ◽  
Breeding Program ◽  
Commercial Use ◽  
Grain Color ◽  
Morphologic Characteristics ◽  
Randomized Complete Block Design ◽  
Web Blight

Native germplasm of a Panama common bean was evaluated in order to obtain its morphologic characteristics and compare them with a group of lines and varieties of CIAT’s breeding program. The purpose was to find a germplasm that could surpass native varieties in terms of its resistance to Web Blight, yield, growing habits, and grain color. A randomized complete block design was used. Five promising lines for commercial use were selected based on yield, resistance to Web Blight, growth pattern, and grain color criteria. Three bean lines are undergoing validation trials in farms.

scholarly journals Genetic Advancement and Variability of Released Common Bean (Phaseolus vulgaris L.) Varieties from 1974–2009 GC in Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Nigussie Kefelegn ◽  
Frew Mekibib ◽  
Yigzaw Dessalegn
Keyword(s):  
Common Bean ◽  
Block Design ◽  
Genetic Parameter ◽  
Breeding Program ◽  
Seed Color ◽  
Phaseolus Vulgaris L ◽  
Genetic Progress ◽  
Biplot Analysis ◽  
Genetic Potential ◽  
Days To Maturity

The efficiency of variety development can be determined with variability and genetic progress of released varieties. The aim of this study was to determine the variability and genetic advancement of common bean varieties. Randomized Completed Block Design was used to evaluate 15 varieties at Koga and Chefa in 2013. Cluster, principal, and biplot analysis including genetic parameter estimation were done following analysis of variance. Significant variation was observed among the varieties, and they are clustered into four groups. Seed color and size were found as an important factors for clustering of the varieties. Hawassa Dume and Nasir have red and small seeded, respectively, and clustered in one group. Similarly, Awash 1 and Awash Melka are both small white and clustered in one group. Hawassa Dume was highly similar to Nasir, and Red Wolayta with Dimitu, while a large distance was recorded between Awash Melka and Haramaya. Deme and Haramaya were found the most divergent and unique among the tested varieties. This is also reflected in biplot drown by principal components 1 and 2, which together accounted for about 82.022. Plant heights, seed weight, days to maturity, and harvest index have the largest contribution to the total variation of the varieties. Most of the traits have a high phenotypic and genotypic coefficient of variation, heritability, and genetic advance, and selection was effective in the breeding program. The breeding program has brought about 0.27 tonnes of seed yield increment or an annual rate of genetic progress of 0.0077 t ha−1 (0.37% ha−1 year−1). However, the breeding program should reconsider the breeding procedure as there are some varieties released in the same year with similar genetic potential.

scholarly journals Genetic Diversity in Common Bean (Phaseolus vulgaris L.) Germplasm to Establish a Breeding Program in the Mountainous Region of Jammu and Kashmir

2020 ◽  
Author(s):  
Ishtiaq Khaliq ◽  
Asad Hussain Shah ◽  
Ghosia Bashir ◽  
Sammya Jannat
Keyword(s):  
Genetic Diversity ◽  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sodium Dodecyl ◽  
Distance Matrix ◽  
Breeding Program ◽  
Phaseolus Vulgaris L ◽  
Jammu And Kashmir ◽  
Selection Of

Common bean (Phaseolus vulgaris L.) is native to Middle America and Andean mountains of South America. Due to its nutritious value, it is one of the most important legume crop of the world. Evaluation of genetic diversity of a crop is extremely important for the establishment of a breeding program and selection of varieties for cultivation. We evaluated the genetic diversity and phylogenetic relationship of 40 P. vulgaris ecotypes from CIAT (International Center for Tropical Agriculture) germplasm using seed protein profiles produced by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), to screen the germplasm to be used in a breeding program. A total of 21 bands scored 14 were found polymorphic. A distance matrix was generated from the similarity matrix based on polymorphic bands. The UPGMA tree was established through cluster analysis performed on the distance matrix. Six major clusters were formed on the basis of SDS_PAGE analysis with one ecotype (E13-G16832) being the most diverse. This analysis provided the basis for selection of suitable ecotypes to be used in the establishment of a breeding program.ane damage the leaves helped the tolerant genotypes to sustain under salinity stress in a better way than the susceptible genotypes.

Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

1982 ◽  
Vol 40 ◽  
pp. 668-669
Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña
Keyword(s):  
Experimental Data ◽  
Electron Diffraction ◽  
Theoretical Analysis ◽  
Size Range ◽  
Dynamical Theory ◽  
Metallic Particles ◽  
Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

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