Biometrics, productivity and technological quality of 23 energy sugarcane hybrid clones with higher lignocellulosic biomass

Abstract

The development and identification of sugarcane clones with higher amount of lignocellulosic biomass are essential to increas e the potential for generation of electrical energy or biofuel. Considering the potential for increased portfolio of products to be explored from the cane energy, the objective of this study was to compare the average results of biometrics, productivity and technological quality of 23 hybrids of cane energy with the commercial variety RB92579 (as a standard). Finally, we will identify energy cane clones of types 1 and/or 2 to become commercial cultivars. The experimental design was randomized blocks with three replications of 24 plots, where each plot consisted of 6 furrows of 10 linear meters with double spacing cycled from 0.9 x 1.5 meters. The evaluated variables were the number of stems per linear meter, stem diameter, dry and fresh matter and industrial quality. Th e results were submitted to statistical analysis using the Scott-Knott test for comparison of means. The diameter of stem in energy cane was lower (1.172 to 1.772 cm) than the average of sugarcane (2.302 cm). On the other hand, a greater number of stems per linear meter were found for 15 clones evaluated (average 24.19) compared to traditional sugarcane (12.5). All clones had low juice sugars concentration but nine clones reached fiber contents higher than 23.6%, representing a 42% increase compared to the fiber content of cultivar RB92579. The hybrids 1, 9, 11, 13, 16, 18 and 23 showed a better development potential with high tillering and high fiber content.

Techno-Economic and Environmental Assessment of Biomass Gasification and Fischer–Tropsch Synthesis Integrated to Sugarcane Biorefineries

“…In the present work, the CanaSoft model was expanded and employed including EC and eucalyptus production systems. As the EC production system is not yet consolidated in Brazil, the production parameters are based on the literature and empirical data from the few available field experiments in Brazil [38,[52][53][54]. The key parameters for EC agricultural system are described and compared to CS in Table 1, while Table 2 summarizes the main parameters for eucalyptus production systems.…”

January 2023

“…Sugarcane is grown in more than 120 countries and is a highly important crop producing three main products: ethanol fuel, sugar, and more recently, bioelectricity (Aquino et al, 2018). It stands out that sugarcane is the most important feedstock of sugar production since it provides nearly 70% of the sugar consumed worldwide (Meerod et al, 2021).…”

“…It also provides biomass to supply 13.8% of the Brazilian electricity demand (MME, 2020). The total global primary energy supply is mainly derived from fossil fuel sources (oil, natural gas, and coal), with more than 82% coming from this energy source (IEA / OECD, 2014; Silva et al, 2018). 60 % of all oil produced is used by the transportation sector (Silva, 2010).…”

“…Ethanol is a substitute for fossil fuels to meet these global requirements due to its production efficiency in economic and environmental factors. Thus, the production of alternative and renewable fuels is a global necessity (Aquino et al, 2018). However, water deficiency is one of the leading causes of productivity losses in sugarcane in Brazil and worldwide, as most sugarcane fields are not irrigated.…”