Abstract
The biomass sorghum (Sorghum bicolor (L.) Moench), is an interesting crop considering the neces- sity to invest in alternative sources to generate renewable energy. The objective of this experi- ment was to identify sorghum biomass genotypes with greatest agronomic and energetic potential, and verify if there is phenotypic association between agronomic and technological properties in the hybrids. The study was conducted in three cities of the Minas Gerais State, Brazil (Lavras, Uberlândia and Sete Lagoas). We evaluated 16 genotypes of sorghum biomass, being 14 of them sensitive hybrids to photoperiod and two cultivars, as control, insensitive to photoperiod. The ex- perimental design was a triple lattice 4 × 4, with plots formed by four linear rows of 5.0 m. The morphoagronomic traits evaluated for the three environments were: days to flowering (FLOW), plant height (PH), number of stalks (NS) and green mass production (GMP). In the experiment conducted in Lavras, we also evaluated the agronomic traits: stalk diameter (SD) and dry mass production (DMP) besides the technological traits: higher heating value (HHV), crude fiber (CF), neutral detergent fiber (NDF) and acid detergent fiber (ADF). The genotype × environment inte- raction was significant for all traits. The hybrids had superior performance compared to the con- trol genotypes. Biomass sorghum hybrids, sensitive to photoperiod, when compared with com- mercial hybrids of forage sorghum, insensitive to photoperiod, had an average production of 34 t ha −1 dry mass with 62% humidity and higher heating value of 4.400 Kcal/Kg. There was no phe- notypic correlation between agronomic and technological traits evaluated. * Corresponding author.
Highlights
IntroductionThe rising demand for electric power in Brazil due to the demographic and industrial progress, associated with the concern for environmental issues, such as the impact of climatic changes in the energy production and supply, led to the creation of a Program for Stimulation of Alternative Sources of Electrical Power (Proinfa)
The rising demand for electric power in Brazil due to the demographic and industrial progress, associated with the concern for environmental issues, such as the impact of climatic changes in the energy production and supply, led to the creation of a Program for Stimulation of Alternative Sources of Electrical Power (Proinfa). This program aims to increase the use of renewable sources such as wind energy, biomass and small hydropower plants (PCH) in the National Interconnected Electric System (SIN), promoting the Brazilian energetic matrix diversification, ensuring the supply chain and enhance the local and regional potential for energy production
With this study we aim to identify biomass sorghum hybrid genotypes which present higher agronomic and energetic potential, and clarify the phenotypic correlations between agronomic and technological traits
Summary
The rising demand for electric power in Brazil due to the demographic and industrial progress, associated with the concern for environmental issues, such as the impact of climatic changes in the energy production and supply, led to the creation of a Program for Stimulation of Alternative Sources of Electrical Power (Proinfa) This program aims to increase the use of renewable sources such as wind energy, biomass and small hydropower plants (PCH) in the National Interconnected Electric System (SIN), promoting the Brazilian energetic matrix diversification, ensuring the supply chain and enhance the local and regional potential for energy production. There was a strong emphasis on plant resources for biomass These species are cultivated to be used as raw material in the biofuel market, generating renewable energy. Only in the last decades a reasonable financial support has been applied in genetic breeding to the development of a specific hybrid with this purpose, called as biomass sorghum genotypes
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
