Estimates of genetic parameters and expected genetic gains with selection in robust coffee

Mistro, Júlio César; Fazuoli, Luiz Carlos; Gonçalves, P. S.; Filho, Oliveiro Guerreiro

doi:10.12702/1984-7033.v04n01a14

Cited by 18 publications

(23 citation statements)

References 5 publications

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“…The yield data of the four harvests separately, the mean yield of the low-yield (2005 and 2007) and of the high-yield years (2006 and 2008), and the mean of four harvests were statistically analyzed to estimate genetic and non-genetic parameters, some of which were used in expressions to estimate the genetic gain (Mistro et al 2004). These procedures were performed using software Genes (Cruz 2006a, b).…”

Section: Methodsmentioning

confidence: 99%

Prediction of genetic gains from selection in Arabica coffee progenies

Oliveira

Pereira

Silva

et al. 2011

Crop Breed. Appl. Biotechnol.

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Section: Methodsmentioning

confidence: 99%

Prediction of genetic gains from selection in Arabica coffee progenies

Oliveira

Pereira

Silva

et al. 2011

Crop Breed. Appl. Biotechnol.

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“…Heritability estimates help in designing appropriate selection procedures for improving clones (Reuben et al, 2003). To facilitate breeding efforts, several studies have reported estimates of genetic parameters determined from C. canephora clones (Leroy et al, 1993(Leroy et al, , 1997Fonseca, 1999;Cilas et al, 2000; E. Anim-Kwapong & G. J. Anim-Kwapong, 2012) and seedlings (Mistro et al, 2004;Montagnon et al, 2003;Cilas et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Genetic Variation among Robusta Coffee Genotypes for Growth and Yield Traits in Ghana

Akpertey¹,

Anim-Kwapong²,

Ofori³

2018

JAS

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Quantifying the level of variation and estimates of genetic parameters are important to make informed decisions regarding the improvement of agronomic traits in Coffea canephora. The objectives of the present study were to assess the growth and yield performance of 54 C. canephora clones derived through ortet selection, based on yield from a previous hybrid trial; estimate genetic parameters of growth traits (stem diameter, height, span, number of laterals, length of laterals and diameter of laterals), and yield; and determine the relationship between yield and the growth traits. The clones were planted in the field in 2009 using a randomized complete-block design with three replications. Significant (p < 0.01) clone effects for all traits and broadsense heritability range of 0.15 (mean yield of last 3 productive years)-0.43 (diameter of laterals) were observed. Stem diameter was moderately and positively correlated with early years' yield (2012/13 mean yield, r = 0.49; p < 0.001), late years' yield (2014 to 2016 mean yield, r = 0.44; p < 0.001), and mean yield across five years (r = 0.42; p = 0.001). Relatively high genotypic coefficient of variation and expected genetic advance values were obtained for the evaluated traits, which indicated a high probability of success of selection for these traits.

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“…MISTRO et al (2004) reported that when the index ω has a value equal or superior to 1.0 the conditions are highly favorable for selection. The existence of genetic variability can be confirmed by values of ω1 for the two evaluated traits.…”

Section: Resultsmentioning

confidence: 99%