Comparing solar radiation interception and use efficiency for the energy crops giant reed (Arundo donax L.) and sweet sorghum (Sorghum bicolor L. Moench)

Ceotto, E.; Candilo, M. Di; Castelli, Fabio; Badeck, Franz-W.; Rizza, Fulvia; Soave, C.; Volta, A.; Villani, Giulia; Marletto, Vittorio

doi:10.1016/j.fcr.2013.05.002

Cited by 66 publications

(51 citation statements)

References 36 publications

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“…This would inflate « c in perennial C 4 biofuel crops during early crop growth. A comparison by Ceotto et al (2013) of the C 3 perennial giant reed (Arundo donax) and the C 4 annual energy crop sorghum supported this point. « c in giant reed, which demonstrates photosynthetic rates typical of C 3 plants (Balota et al, 2008), was greater than the « c of the C 4 annual sweet sorghum (Ceotto et al, 2013).…”

Section: « C S In Bioenergy Cropsmentioning

confidence: 64%

“…« c in giant reed, which demonstrates photosynthetic rates typical of C 3 plants (Balota et al, 2008), was greater than the « c of the C 4 annual sweet sorghum (Ceotto et al, 2013). However, the intercept of the relationship between aboveground biomass and intercepted radiation in giant reed was greater than zero, suggesting that rhizome energy contributions to aboveground biomass were increasing shoot growth rates independent of radiation absorption (Ceotto et al, 2013).…”

Section: « C S In Bioenergy Cropsmentioning

confidence: 78%

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Photosynthetic Energy Conversion Efficiency: Setting a Baseline for Gauging Future Improvements in Important Food and Biofuel Crops

Slattery

Ort

2015

Plant Physiol.

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ORCID IDs: 0000-0002-7165-906X (R.A.S.); 0000-0002-5435-4387 (D.R.O.).The conversion efficiency (« c ) of absorbed radiation into biomass (MJ of dry matter per MJ of absorbed photosynthetically active radiation) is a component of yield potential that has been estimated at less than half the theoretical maximum. Various strategies have been proposed to improve « c , but a statistical analysis to establish baseline « c levels across different crop functional types is lacking. Data from 164 published « c studies conducted in relatively unstressed growth conditions were used to determine the means, greatest contributors to variation, and genetic trends in « c across important food and biofuel crop species. « c was greatest in biofuel crops (0.049-0.066), followed by C 4 food crops (0.046-0.049), C 3 nonlegumes (0.036-0.041), and finally C 3 legumes (0.028-0.035). Despite confining our analysis to relatively unstressed growth conditions, total incident solar radiation and average growing season temperature most often accounted for the largest portion of « c variability. Genetic improvements in « c , when present, were less than 0.7% per year, revealing the unrealized potential of improving « c as a promising contributing strategy to meet projected future agricultural demand.

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Section: « C S In Bioenergy Cropsmentioning

confidence: 64%

Section: « C S In Bioenergy Cropsmentioning

confidence: 78%

Photosynthetic Energy Conversion Efficiency: Setting a Baseline for Gauging Future Improvements in Important Food and Biofuel Crops

Slattery

Ort

2015

Plant Physiol.

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“…RUE is presented in Table 7. A light extinction coefficient (k) of 0.37 ( Figure 2a,b and Table 7) and 0.60 (Table 7) was employed from the literature [36,37]. Greater RUE values were estimated by 13.8-24.4% when a light extinction coefficient of 0.37 was employed compared to 0.60.…”

Section: Estimation Of Radiation Use Efficiency (Rue)mentioning

confidence: 99%

“…Intercepted radiation was calculated on a daily basis from emergence to maturity according to Monsi and Saeki [35]. Extinction coefficients for sorghum of 0.37 and 0.60 were employed from the literature [36,37]. Daily gross assimilation (Equation (1)) and growth (Equation (2)) and maintenance respirations (Equation (3)) were calculated using the following equations according to Lövenstein et al [38].…”

Section: Statistical Analysis and Simulationmentioning

confidence: 99%

Agronomic Factors Affecting the Potential of Sorghum as a Feedstock for Bioethanol Production in the Kanto Region, Japan

et al. 2017

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Abstract:In the Kanto region in Japan, the possibilities of running a bio-ethanol plant from rice straw has been assessed and sorghum production has been considered as a necessary part of the system. Two field experiments were conducted in 2012 and 2013 at the NARO-Agricultural Research Center in Tsukuba, Ibaraki to estimate yielding ability of sorghum in the Kanto region. Two cultivars of sweet sorghum and one of grain sorghum were sown using a pneumatic seeder. Above-ground dry matter (DM) yield ranged from 1.03 to 1.82 kg m −2 for the sorgo type cultivars and from 0.70 to 1.18 kg m −2 for the grain type cultivar. The observed yields were lower than the simulated potential yields, i.e., 1.61 to 2.66 kg m −2 , indicating that biomass production was restricted in this study. Stem brix values for the sweet sorghum cultivars were generally low (3.3-16.2%) compared with the values reported in the literature. It appears that there is still room to improve the field management of sorghum to minimize the gap between the potential and actual production observed in these experiments.

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“…Thermal time was accumulated from the plant date up to 50% (TT50) and (Ceotto et al 2013) and thus applied to all crops.…”

Section: Thermal Timementioning

confidence: 99%

Water and radiation use efficiency of sugarcane for bioethanol production in South Africa, benchmarked against other selected crops

Olivier

Singels

Eksteen

2015

South African Journal of Plant and Soil

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There are indications that high-fibre sugarcane genotypes may produce more biomass and use resources more efficiently than conventional sugarcane cultivars.The objective of this research was to gather quantitative information on resource use for selected conventional and high-fibre sugarcane genotypes and benchmark it against other bioethanol crops. Although conventional sugarcane initially grew slower than sorghum and Napier grass, it produced very high biomass (about 70 t ha -1 ) and theoretical ethanol (first-and second-generation) yields (about 27 kL ha ), outperforming all other crops except sorghum. The contribution of cellulosic ethanol to total ethanol yield varied hugely, from 89% for the high-fibre sugarcane hybrid to about 48% for conventional sugarcane, to as low as 14% for sugar beet. The highfibre sugarcane hybrid grew faster initially and produced more biomass at eight months (56 t ha -1 vs. 45 t ha -1 ) than the conventional types, but then flowered, reducing its growth rates markedly thereafter. It was also less sensitive to mild drought conditions. Results suggest that cellulosic ethanol production could be a feasible option that could be incorporated into conventional or biomass sugarcane production systems.Keywords: bioethanol crops, biomass, high-fibre sugarcane, stalk fibre composition, theoretical ethanol yield IntroductionThere is increasing interest in renewable energy, including biofuel from crops.Bioethanol can be produced from the fermentation of soluble sugars in the storage organs of feedstock crops, while 2 nd generation lignocellulose technology enables the production of ethanol from cell-wall sugars extracted from plant fibre (Ragauskas et al. 2006). This will greatly enhance the potential ethanol output from feedstock crops and address concerns regarding ethanol production from food crops in high potential production areas.Potential bioethanol crops include maize, switchgrass, Miscanthus, sugarcane, sugar beet, sorghum and poplar. Compared to other crops sugarcane has abundant potential for producing high biomass yield (Alexander, 1985) and consequently high bioethanol yields from sugars in the juice (Renouf et al. 2008) and form leaf and stalk fibre (Waclawovsky et al. 2010, de Souza et al. 2013. Energy cane that produce high biomass rather than high sucrose yield and use natural resources more efficiently, are currently in development (Tew and Cobill 2008). These genotypes 2 could possibly be used for biomass production in marginal production areas where resource levels are low, such as low rainfall areas or areas with poor soils.Very little quantitative information on radiation and water use or crop productivity is available for high-fibre sugarcane types in South Africa. Waclawovsky et al. (2006) quote commercial maximum yields of 29 t ha -1 of dry biomass and puts forward a theoretical maximum of 177 t ha -1. Alexander (1985) hypothesizes that sugarcane yields can be increased two fold by using high-fibre cane and managing water and nitrogen to maximize biomass growth an...

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Comparing solar radiation interception and use efficiency for the energy crops giant reed (Arundo donax L.) and sweet sorghum (Sorghum bicolor L. Moench)

Cited by 66 publications

References 36 publications

Photosynthetic Energy Conversion Efficiency: Setting a Baseline for Gauging Future Improvements in Important Food and Biofuel Crops

Photosynthetic Energy Conversion Efficiency: Setting a Baseline for Gauging Future Improvements in Important Food and Biofuel Crops

Agronomic Factors Affecting the Potential of Sorghum as a Feedstock for Bioethanol Production in the Kanto Region, Japan

Water and radiation use efficiency of sugarcane for bioethanol production in South Africa, benchmarked against other selected crops

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