Five decades of black common bean genetic breeding in Brazil

Barili, Leiri Daiane; Vale, Naine Martins do; Carneiro, José Eustáquio de Souza; Silva, Fabyano Fonseca e; Silva, Felipe Lopes da

doi:10.1590/1983-40632016v4641371

Cited by 13 publications

(14 citation statements)

References 13 publications

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“…The black group accounts for only 17% of the Brazilian production (Faria et al, 2014), therefore, less breeding efforts are invested than for the carioca group. However, since 1988, significant progress was observed in the genetic gain of black bean cultivars, and cultivars that reach higher yield levels are still being developed (Barili et al, 2016).…”

Section: Traits With H Gmentioning

confidence: 99%

Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Delfini¹,

Neto²

2019

Emir J Food Agric

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In the international scenario of agriculture, Brazil stands out as the main producer and consumer of common bean (Phaseolus vulgaris L.) The increase in the productive potential of the crop is mainly due to breeding programs. The objective of this study was to estimate genetic parameters, predict genotypic values with REML/BLUP (Restricted Maximum Likelihood/Best Linear Unbiased Prediction) and, based on these values, study the variability in common bean cultivars with carioca and black grain. Twenty three agromorphological descriptors were evaluated, among them grain yield. Deviance analysis detected significant differences between the cultivars in both groups. Selective accuracy (Ac) was considered high for most of the traits. Broad-sense heritability ( ) ranged from 0.05 to 0.72, but it was low for the trait yield (YLD). In the carioca grain group, the values for the traits related to plant morphology were higher than in the black group. Nevertheless, the values in the black group were higher in relation to the pod and seed traits. The correlations for YLD were moderate but different in the two commercial groups studied. In the black group, variables related to the seed morphology were correlated with grain yield, and in the carioca group, traits related to seed quantity. Based on the groupings, variability among the cultivars was observed. Three distinct clusters were formed for the carioca group and four for the black group. Based on the predicted genetic values, genetic variability and the most adapted and stable cultivars were detected among the cultivars in the studied environments. #This article has been posted in Preprints with a doi 10.20944/preprints201803.0215.v1 (https://www.preprints.org/manuscript/201803.0215/v1) (Creative Commons CC BY 4.0 license) *Corresponding author, Email: leandrosag@uel.br

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Section: Traits With H Gmentioning

confidence: 99%

Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Delfini¹,

Neto²

2019

Emir J Food Agric

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“…According to RAMALHO et al (2012), the increase in grain yield in the bean crop in the country observed in the last decades reflect a continuous action of the Brazilian research institutes in activities (2014), andBARILI et al (2016) show genetic gains ranging between 1.07% and 3.26% per year. It should be emphasized that, unlike the studies carried out by MATOS et al (2007), CHIORATO et al (2010), FARIA et al (2014 and BARILI et al (2016), the use of QR made it possible to obtain information about the effect of the adaptability parameter throughout the grain yield distribution; and therefore, how it changed over the last 50 years of genetic improvement.…”

Section: Resultsmentioning

confidence: 99%

Analysis of the adaptability of black bean cultivars by means of quantile regression

et al. 2019

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The aim of this study was to use quantile regression (QR) to characterize the effect of the adaptability parameter throughout the distribution of the productivity variable on black bean cultivars launched by different national research institutes (research centers) over the last 50 years. For this purpose, 40 cultivars developed by Brazilian genetic improvement programs between 1959 and 2013 were used. Initially, QR models were adjusted considering three quantiles (τ = 0.2, 0.5 and 0.8). Subsequently, with the confidence intervals, quantile models τ = 0.2 and 0.8 (QR0.2 and QR0.8) showed differences regarding the parameter of adaptability and average productivity. Finally, by grouping the cultivars into one of the two groups defined from QR0.2 and QR0.8, it was reported that the younger cultivars were associated to the quantile τ = 0.8, i.e., those with higher yields and more responsive conditions indicating that genetic improvement over the last 50 years resulted in an increase in both the productivity and the adaptability of cultivars.

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“…Despite the large number of cultivars recommended for cultivation in different regions of Brazil, the high demand for more productive cultivars may lead to the loss of some traits, and/or not include other characteristics of interest in the bean production chain (Faria et al, 2014). Among these, the technological quality of the grains is distinctive.…”

Section: Introductionmentioning

confidence: 99%

Technological quality of grain of common bean genotypes of the black commercial class

Silva

Carvalho

David

et al. 2019

Agraria

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The technological quality from grains of bean should be evaluated in trials of elite lines to complement the agronomic performance evaluation, ensure the selection and recommendation of new cultivars, and guarantee its greater acceptance by the consumer market. Thus, this study aimed to evaluate the technological quality from selected genotypes of black bean grains. We used 12 elite lines and 4 cultivars from commercial black group constituents of the Value for Cultivation and Use (VCU). The trial was carried out on the Experimental Farm of Federal University of Viçosa-MG, in Coimbra County, in the 2012 crops of autumn/winter seasons. The experimental design was in randomized block, with three replications. The evaluated characteristics were shape, degree of flattening, thousand grains weight, hard-to-cook grains percentage, cooking time, husk percentage and the hydration capacity of the grains. The lines VP 24, VP 25 and VP 29 present the medium level of resistance to cooking similar to the cultivars (controls), and the other evaluated lines have normal resistance to bean cooking. The genotypes CNFP 11977, VP 29 and 'Ouro Negro' attain, in shorter time, 50% of the maximum hydration capacity of the grains, and resistance between normal and medium for cooking time. The lines VP 29 and CNFP 11977 also obtained the greatest hydration capacity for most evaluated times.

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Five decades of black common bean genetic breeding in Brazil

Cited by 13 publications

References 13 publications

Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Estimation of genetic parameters and prediction of genotypic values in common beans using mixed models#

Analysis of the adaptability of black bean cultivars by means of quantile regression

Technological quality of grain of common bean genotypes of the black commercial class

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