Adaptability and stability of sweet sorghum cultivars

Souza, Vander Fillipe de; Parrella, R. A. da C.; Tardin, F. D.; Costa, Márcia Regina; Júnior, G. A. de Carvalho; Schaffert, R. E.

doi:10.1590/s1984-70332013000200007

Cited by 19 publications

(16 citation statements)

References 26 publications

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“…There were significant differences (P < 0.05) among sweet sorghum genotypes for all the agro-industrial traits (Tables 1 and 2). This significance can be considered as evidence of genetic variability, as has also been reported in other studies (Pfeiffer et al, 2010;Tomar et al, 2012;Souza et al, 2013).…”

Section: Resultssupporting

confidence: 71%

Association among agro-industrial traits and simultaneous selection in sweet sorghum

Leite¹,

Fagundes²,

Nunes³

et al. 2017

Genet. Mol. Res.

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ABSTRACT. Sweet sorghum has emerged as an alternative crop for ethanol yield. The breeding of this crop is performed to obtain cultivars with high ethanol yield, which necessarily requires associating favorable phenotypes for multiple traits. Therefore, the aims of this study were to investigate the association between agro-industrial traits related to ethanol yield and identify the promising genotypes considering multiple traits in sweet sorghum. For this purpose, we evaluated 45 genotypes using a 9 x 5 alpha-lattice experimental design with three replications. The traits measured were flowering time, plant height, tons of stalk per hectare, total soluble solids, tons of brix per hectare, juice extraction, total recoverable sugars, and ethanol yield. Analyses were performed after the recovery of inter-block information. The interrelation of the traits was described by genotype-by-trait biplot. For simultaneous selection, the Modified Mulamba and Mock index was used. For almost all of the agro-industrial traits, except for juice extraction, selective accuracy was above 70%. There were significant differences among genotypes for all the traits. The genotype-by-trait biplot evidenced a positive association between most of the traits related to ethanol yield, except for juice extraction, indicating the possibility of indirect selection to obtain more productive genotypes. Some genotypes proved to be promising based on the selection index, as they accumulated phenotypes favorable for the traits of interest.

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Section: Resultssupporting

confidence: 71%

Association among agro-industrial traits and simultaneous selection in sweet sorghum

Leite¹,

Fagundes²,

Nunes³

et al. 2017

Genet. Mol. Res.

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“…Genotype × site interaction (P < 0.05) was also observed for most of the traits, except for juice extraction (EXT). Some studies on sweet sorghum have indicated the presence of the genotype × environment interaction for traits related to ethanol yield (ETH) (Umakanth et al 2012, Souza et al 2013, Elangovan et al 2014, Figueiredo et al 2015.…”

Section: Resultsmentioning

confidence: 99%

“…L.) as the main feedstock. Nevertheless, the sugarcane crop has some particular features that compromise the feedstock supply for sugarcane mills, such as the renewal rate of crop areas (~20% each year) and the off-season period (Souza et al 2013). Currently, about 2 mi ha of sugarcane crop area is under renewal, and the period from March to April is the off-season.…”

Section: Introductionmentioning

confidence: 99%

General and specific combining ability in sweet sorghum

Rocha

Nunes

Parrella

et al. 2018

Crop Breed. Appl. Biotechnol.

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In breeding of sweet sorghum hybrids, non-additive genetic effects are important in phenotypic expression of the traits of interest. The aim of this study was to evaluate the general combining ability (GCA) of sweet sorghum lines and the specific combining ability (SCA) of the hybrids for agronomic and technological traits. Five fertility restorer lines, four male-sterile lines, and their hybrids from partial diallel crosses were evaluated in experiments laid out in a 5 x 6 triple rectangular lattice design in the municipalities of Lavras, MG and Sete Lagoas, MG, Brazil. Diallel analysis was performed using the Griffing model adapted to partial diallel crosses. There was a significant effect of GCA and SCA for most of the traits evaluated, indicating the participation of additive or dominant genes in inheritance. The restorer lines CMSX508, BRS 511, CMSXS643, and CMSXS646 show potential for use as parents in sorghum breeding programs.

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“…For May et al (2012) and Souza et al (2013), this occurs probably due to the better use of water, light and nutrients by plants, as well as the longer period in the field, since the plants harvested at 120 DAS had better results, in relation to the stem diameter. In the second sowing season and in its two harvest dates, stem diameter was not influenced by the increasing row spacing for the crop.…”

Section: Resultsmentioning

confidence: 99%

Row spacing, plant density, sowing and harvest times for sweet sorghum1

Silva

Dutra

Câmara

et al. 2017

Pesqui. Agropecu. Trop.

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Along with sugarcane, which is the main crop used for ethanol production, the sweet sorghum is a promising agronomic and industrial alternative for cultivation in water-stress regions. This study aimed at assessing the row spacing (0.70 m, 0.80 m and 0.90 m) and plant density (80,000 plants ha-1; 100,000 plants ha-1; 120,000 plants ha-1; and 140,000 plants ha-1) for the BRS 511 sorghum cultivar, combined with sowing and harvest times. A split-plot experimental design, in complete randomized blocks, with four replications, was used. The analyzed variables were plant height, stem diameter, shoot fresh and dry matter, broth volume and total soluble solids (ºBrix). The results showed isolated effects of plant density on plant height and stem diameter, as well as effects of row spacing on total fresh mass and broth volume. The most efficient productive effect for the sweet sorghum was observed in populations lower than 120,000 plants ha-1 and row spacing inferior to 0.80 m, associated with harvest at 120 days after sowing.

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Adaptability and stability of sweet sorghum cultivars

Abstract: Abstract

Cited by 19 publications

References 26 publications

Association among agro-industrial traits and simultaneous selection in sweet sorghum

Association among agro-industrial traits and simultaneous selection in sweet sorghum

General and specific combining ability in sweet sorghum

Row spacing, plant density, sowing and harvest times for sweet sorghum1

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