Yield, maturation cycle, and estimates of genetic parameters of Robusta coffee genotypes under irrigation in the Cerrado

Santin, Mateus Rollemberg; Coelho, Mateus Costa; Sayd, Ricardo Menezes; Peixoto, José Ricardo; Amábile, R. F.

doi:10.1590/1984-70332019v19n4a55

Cited by 10 publications

(10 citation statements)

References 17 publications

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“…For their part, Santos et al (2015) state that variables with high accuracy values also indicate good genetic control in expression of a trait. Therefore, accuracy values greater than 0.70 are sufficiently high to make precise inferences regarding the genetic value of the progeny, whereas low accuracy values are usually related to low heritability estimates of a trait (Santin et al 2019). However, it is noteworthy that, in the present experiment, only TSS showed an accuracy value lower than 0.70.…”

Section: Genetic Evaluation Of the Familiesmentioning

confidence: 50%

Guava breeding via full-sib family selection: conducting selection cycle and divergence between parents and families

Bezerra

Ribeiro

Viana

et al. 2020

Crop Breed. Appl. Biotechnol.

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The major hindrance to guava fruit (Psidium guajava L.) growing is the low availability of cultivars for use by Brazilian producers, who usually rely on few options of genotypes to implement the crop. In the present study, 11 full-sib families were evaluated in a randomized-block experimental design with three replicates, in order to more efficiently select superior genotypes. Genetic parameters were estimated and the best genotypes were selected based on genetic value by applying the REML/BLUP statistical procedure. Additionally, genetic divergence was estimated based on the mean Euclidian distance between the individuals selected via BLUP. Based on genetic divergence, the best genotypes were selected for use as parents in new crosses aiming at continuity of the guava breeding program. The mean values of the traits of selected individuals surpassed the mean values of their parents, confirming that the strategy of obtaining full-sib families is effective in generating considerable gains.

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Section: Genetic Evaluation Of the Familiesmentioning

confidence: 50%

Guava breeding via full-sib family selection: conducting selection cycle and divergence between parents and families

Bezerra

Ribeiro

Viana

et al. 2020

Crop Breed. Appl. Biotechnol.

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“…The disparity in H. hampei penetration time in different coffee varieties may be associated with the intrinsic genetic characteristics of each coffee variety. Genetic variability affects plant characteristicssuch as productivity and fruit maturation cycle (Santin et al, 2019), drink quality (Barbosa et al 2019;Lemos et al, 2020), produced secondary metabolites (Becerra et al, 2019), and berry crown diameter (Machado et al, 2017). Thus, the extended penetration time by H. hampei in Arara, Guará and Catuaí Vermelho IAC 144 varieties may be linked to genes that regulate pericarp characteristics that might hinder H. hampei, increasing the time females would take to drill into the berry.…”

Section: Discussionmentioning

confidence: 99%

Resistance and effect of insecticide-treated coffee berries of different varieties to the penetration of Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae)

Júnior

Soares

Celoto

et al. 2021

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The control of Hypothenemus hampei, coffee berry borer (CBB) is difficult as the insects infest inside coffee berries and are thus protected from agrochemicals. Coffee varieties with an increased penetration time by H. hampei can help control this pest tends to be exposed insecticide action for long time. Therefore, this study aimed to determine the time taken by H. hampei to entirely penetrate berries of different coffee varieties and whether insecticides have any influence on the penetration time. Thus, twenty five berries of 27 coffee varieties in the green phenological stage were introduced in rubber caps, with the berry crown exposed.. From this experiment, seven varieties were selected for another bioassay, with insecticides being sprayed on the berries. Copulated female H. hampei were released on the berry, and the penetration time was assessed. Finally, a free-choice test to verify H. hampei food preference was performed, using the same seven coffee varieties. The insects took longer to penetrate the Arara, Catuaí Vermelho IAC 144, and Guará coffee-variety berries. Moreover, all coffee varieties treated with the insecticide cyantraniliprole inhibited penetration by H. hampei. Most coffee varieties treated with insecticides showed a prolonged penetration time by H. hampei compared to the same untreated ones, except for the chlorpyrifos insecticide in the Catuaí IAC 144 and IAC 62 varieties. Additionally, H. hampei showed no feeding preference among the different tested coffee varieties.

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“…Sifat pembungaan varietas kopi dapat dibedakan menjadi berbunga awal, tengah, dan lambat (Randriani and Dani 2018). Dengan demikian sifat kemasakan buah kopi juga akan berbeda yaitu klon masak sangat awal, masak awal, masak tengah, dan masak akhir yang masing-masing dapat berbeda urutan waktu 2 minggu (Santin et al 2019). Fenologi pembuangaan yang berbeda selanjutnya akan berpengaruh kepada saat perkembangan dan pemasakan buah (Sakiroh, Rokhmah, and Supriadi 2021).…”

Section: Pendahuluanunclassified

Pertumbuhan dan Hasil Kopi Grafting Robusta/Liberika pada Klon dan Waktu Pemupukan yang berbeda

Kurniawan¹,

Evizal²,

Septiana³

et al. 2022

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Grafting of different coffee species (interspecific grafting) aims to take advantage of the superiority of the rootstock and promote the growth and production of the scion. For example, Robusta coffee is grafted with Liberika coffee as rootstock. One of the principles of fertilization is the application of fertilizer at the right time. This study aimed to determine the effect of clones of Robusta/Liberica interspecific grafting and different fertilization times on the growth and yield of Robusta coffee. The research was conducted in a 15-year-old coffee plantation with the rootstock of Liberika coffee of the Red Robinson variety which was grafted to the scion of multiclonal Robusta coffee. Planting distance of coffee was 2.5 m x 2.5 m and shade trees were Gliricidia sepium. This research used a split plot design arranged in a factorial (4x2) with three replications so that there were 24 experimental units. The main plot was the time of fertilization, namely in early April and October and in early May and November. As sub-plots, there were Robusta coffee clones, namely Korolla 1, Korolla 2, Tugu Bungkuk, and Darmani. The results showed that fertilization time, clones, and their interactions did not affect the number of primary branches, primary branch length, number of secondary branches, fruit weight of harvested samples, number of fruit per bunch, fruit weight per bunch, dry seed weight per bunch, and coffee yield per tree. The interaction of coffee clones and fertilization time had a significant effect on the number of pods per branch, the number of harvested samples, dry bean weight of harvested samples, dry bean weight per branch, and coffee yield per hectare. For Darmani coffee clones, delaying fertilization from April and October to May and November reduced coffee yield. Key words : Interspesific grafting, Liberica, Robusta, time of fertilization, yield

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Yield, maturation cycle, and estimates of genetic parameters of Robusta coffee genotypes under irrigation in the Cerrado

Cited by 10 publications

References 17 publications

Guava breeding via full-sib family selection: conducting selection cycle and divergence between parents and families

Guava breeding via full-sib family selection: conducting selection cycle and divergence between parents and families

Resistance and effect of insecticide-treated coffee berries of different varieties to the penetration of Hypothenemus hampei (Coleoptera: Curculionidae: Scolytinae)

Pertumbuhan dan Hasil Kopi Grafting Robusta/Liberika pada Klon dan Waktu Pemupukan yang berbeda

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