Genetic diversity and coefficient of kinship among potential genitors for obtaining cultivars of energy cane

Silveira, Luís Cláudio Inácio da; Brasileiro, Bruno Portela; Kist, Volmir; Daros, Edelclaiton; Peternelli, Luiz Alexandre

doi:10.5935/1806-6690.20150015

Cited by 8 publications

(13 citation statements)

References 24 publications

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“…According to Silveira et al (2015b), cultivars of energy cane type 1 with sucrose contents maintained at levels around 13% and fiber contents around 17% would be able to meet the current demands of the sugarcane industry (Figure 4). …”

Section: Direct Selection (Ds) Smith and Hazel (Sh) Mulamba And Mocmentioning

confidence: 99%

Comparison between different selection indices in energy cane breeding

Azeredo¹,

Bhering²,

Brasileiro³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Sugarcane breeding programs have been adapting to a new market demand: aside from high sucrose yield per hectare, the sector needs new cultivars with higher fiber percentages. The selection of sugarcane clones based on phenotype alone is a complex task. The selected clones should display high performance in a series of yieldand quality-related traits. Selection indices can provide information about which clones can best combine the traits of agronomic interest. In this study, different selection indices were evaluated in a population of 220 clones. The following traits were evaluated: weight of 10 stalks with straw, weight of 10 stalks with no straw, tons of cane per hectare with straw, tons of cane per hectare with no straw, sucrose content, fiber percentage, and tons of fiber per hectare. The selection indices of Smith (1936) and Hazel (1943) and Mulamba and Mock (1978), the base index (Williams, 1962), and the index of Pesek and Baker (1969) were used. The selection index of Mulamba and Mock (1978) without economic weight estimates, the index of Mulamba and Mock with economic weights based on heritability, and the index of Pesek and Baker (1969) with the desired gains based on genetic standard deviations were efficient for the selection of energy cane clones with good fiber yield, sucrose content, and tons of cane per hectare.

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Section: Direct Selection (Ds) Smith and Hazel (Sh) Mulamba And Mocmentioning

confidence: 99%

Comparison between different selection indices in energy cane breeding

Azeredo¹,

Bhering²,

Brasileiro³

et al. 2017

Genet. Mol. Res.

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“…The crosses involving these two parents resulted in 10 cultivars, including the most commonly cultivated and planted in Brazil (Daros et al 2015). In fact, specific combinations are able to raise heterosis in segregating generations and increase the chances of identifying transgressive clones in their progenies (Silveira et al 2015a). …”

Section: Lci Silveira Et Almentioning

confidence: 99%

“…The current demand for a higher biomass volume to produce second generation ethanol and electricity generates new research lines initiated for the development of cultivars with higher fiber content, the so-called cane energy (Santchurn et al 2014, Silveira et al 2015a, Silveira et al 2015b). …”

Section: Introductionmentioning

confidence: 99%

Selection in energy cane families

Silveira

Brasileiro

Kist

et al. 2016

Crop Breed. Appl. Biotechnol.

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“…This has been the strategy to increase biomass in breeding programs in several countries, e.g., in Puerto Rico (Alexander, 1985), the United States (Giamalva et al, 1985;Eggleston et al, 2007), Barbados (Rao et al, 2007), and Mauritius (Ramdoyal and Badaloo, 2007). In Brazil, studies on energy cane are more recent (Matsuoka et al, 2014;Carvalho-Netto et al, 2014;Silveira et al, 2015aSilveira et al, ,b, 2016Ramos et al, 2017;de Azeredo et al, 2017). Table 3.…”

Section: Resultsmentioning

confidence: 99%

“…To increase the fiber content of future cultivars, some researchers propose the exploitation of crosses between accessions of these species with sugarcane cultivars with high yields, aiming at the selection of clones with high biomass production and higher fiber contents, called energy cane (Ming et al, 2006;Wang et al, 2008;Silveira et al, 2015aSilveira et al, ,b, 2016Ramos et al, 2017;de Azeredo et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Research Article RESEARCH-ARTILE Agricultural performance and genetic parameters for yield-related traits of sugar- and energy cane families derived from planned crosses.

Júnior¹,

Azeredo²,

Oliveira³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. The forecast of a growing energy demand in the coming years has aroused particular interest in biomass for energy cogeneration, to diversify the energy matrix by using clean and renewable sources. To meet the new demands of the sugarcane industry, this study evaluated the agronomic performance and estimated genetic parameters for yield traits in sugar-and energy cane families derived from planned crosses. The cane families were assessed in the northwest of the State of Paraná, county of Paranavaí, in a randomized complete block design, with three replications. The evaluations were carried out 12 months after the first cut, in the ratoon cane cycle, in December 2014, under very unfavorable conditions for the crop, due to the low fertility and waterholding capacity of the soil. Besides, the crop was evaluated at the end of the harvest, when the agricultural and industrial quality of the crop is reduced. The following traits were evaluated at the plot level: soluble solids content, apparent sucrose content (PC), fiber content, tons of cane per hectare, tons of sucrose per hectare (TSH), and tons of fiber per hectare (TFH). High genetic variability was observed for all evaluated traits, with accuracy estimates from 0.69 (TSH) to 0.92 (PC), and high heritability (up to 0.84), indicating the possibility of genetic progress. The sugarcane families derived from crosses of Saccharum spontaneum and Saccharum robustum species with sugarcane hybrids had the highest fiber contents. Highest sugar contents were found in sugarcane families resulting from crosses of sugarcane clones and conventional cultivars. The TSH means were highest in the families F160 x MEX68-200 and RB855156 x RB987935. The highest genotypic mean for TFH was observed in the special polycross involving cultivar RB036066 with S. spontaneum accessions as pollen donors.

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Genetic diversity and coefficient of kinship among potential genitors for obtaining cultivars of energy cane

Cited by 8 publications

References 24 publications

Comparison between different selection indices in energy cane breeding

Comparison between different selection indices in energy cane breeding

Selection in energy cane families

Research Article RESEARCH-ARTILE Agricultural performance and genetic parameters for yield-related traits of sugar- and energy cane families derived from planned crosses.

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