Breeders' work after cultivar development: the stage of recommendation

Federizzi, Luiz Carlos; Carbonell, Sérgio Augusto Morais; Pacheco, Marcelo Teixeira; Nava, Itamar Cristiano

doi:10.1590/s1984-70332012000500008

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…The production and distribution of seeds from the URS Brava cultivar followed the flowchart used by the Oat Breeding Program of the Federal University of Rio Grande do Sul (UFRGS) as described by Federizzi et al (2012).…”

Section: Agronomical Performancementioning

confidence: 99%

URS Brava - a new oat cultivar with partial resistance to crown rust

Federizzi

Pacheco

Nava

2015

Crop Breed. Appl. Biotechnol.

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Section: Agronomical Performancementioning

confidence: 99%

URS Brava - a new oat cultivar with partial resistance to crown rust

Federizzi

Pacheco

Nava

2015

Crop Breed. Appl. Biotechnol.

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“…Dynamics established comparison of cultivars released is considered the most efficient way to evaluate the performance of a breeding programme (Ceccarelli, 2015; Federizzi et al, 2012; Silva Júnior et al, 2019). Several studies have used this methodology to quantify the genetic gain in rice (Reis et al, 2015; Silva Júnior et al, 2019; Streck et al, 2018; Tabien et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Quarter century genetic progress in irrigated rice (Oryza sativa) in Southeast Brazil

et al. 2021

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Rice is one of the most consumed cereals in the world and of extreme social and economic importance in Brazil. Minas Gerais is the leading State in irrigated rice production in the Southeast Region. This study aimed to estimate the genetic progress of 26 years of the irrigated rice breeding programme of Epamig in Southeast Brazil by time meta‐analysis. Genetic progress was estimated for grain yield, plant height and days to flowering. The dataset understood 162 genotypes in 91 trials of value for cultivation and use of 26 seasons. The rate of annual genetic gain for grain yield was estimated .99% (49.85 kg year−1). It was also verified that was a reduction in plant height and an increase in days to flowering, even if very low. Due to distinct historical phases of the rice breeding programme, there were changes in research focus and, consequently, affected the genetic gains. With this study, it was possible to evaluate the selection strategies carried out in the past and identify important points to maintain.

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“…The results of agricultural experiments with rice or any other crop, compiled in databases, can be analyzed together to understand the breadth of information and the data dynamics in a temporal evaluation. The dynamics of plant breeding programs have been analyzed based on the genotype replacement rate over time (Reis et al 2015, Follmann et al 2017, which is calculated from the inclusion, exclusion and renewal of cultivars and is considered the most efficient way to assess the dynamics of performance (Federizzi et al 2012, Ceccarelli 2015.…”

Section: Introductionmentioning

confidence: 99%

Dynamics, diversity and experimental precision in final irrigated rice testing: a time meta-analysis

Costa

Oliveira

Cruz

et al. 2020

Crop Breed. Appl. Biotechnol.

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The objective of this study was to investigate diversity, experimental conditions and dynamics of the Irrigated Rice Breeding Program of Minas Gerais -Brazil, by meta-analysis. The target traits were grain yield, plant height and days to flowering. Evaluations were based on estimates of 376 genotypes grown at three locations, in two final comparative trials, in 14 growing seasons. Stability of the overall averages of the traits plant height and days to flowering was observed, indicating an adequate plant height and medium cycle. High average yields (>5,000 kg ha -1 ), good experimental accuracy and genetic variability were recorded. However, the genetic variability of all traits decreased over time, indicating the need to increase genotypic diversity. The parameter estimates of the morphoagronomic traits studied in time meta-analysis indicated the dynamic nature and good accuracy of the Irrigated Rice Breeding Program of Minas Gerais.

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Breeders' work after cultivar development: the stage of recommendation

Cited by 10 publications

References 8 publications

URS Brava - a new oat cultivar with partial resistance to crown rust

URS Brava - a new oat cultivar with partial resistance to crown rust

Quarter century genetic progress in irrigated rice (Oryza sativa) in Southeast Brazil

Dynamics, diversity and experimental precision in final irrigated rice testing: a time meta-analysis

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