Morpho-physiological bases of biomass production by energy cane and sugarcane: A comparative study

Cruz, Larissa Prado da; Pacheco, Vinícius S.; Silva, Luciano Melo; Almeida, R.L. de; Miranda, Marcela T.; Pissolato, Maria D.; Machado, Eduardo Caruso; Ribeiro, Rafael V.

doi:10.1016/j.indcrop.2021.113884

Cited by 13 publications

(8 citation statements)

References 27 publications

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“…2A). Such high photosynthetic activity would boost biomass production through breeding for the development of improved sugarcane or energy cane varieties (Cruz et al 2021), as the heritability of photosynthetic traits is high (Jackson et al 2016, Li et al 2017, Almeida et al 2021.…”

Section: Discussionmentioning

confidence: 99%

“…In theory, about 6% of global solar radiation is converted into biomass by C4 plants (Zhu et al 2008), determining crop growth and yield (Lawlor 1995, Long et al 2006, Marchiori et al 2010. Light conversion efficiency in sugarcane may reach ~ 5.39 g MJ -1 (Cruz et al 2021(Cruz et al , 2022, and such efficiency is driven by canopy photosynthesis and respiration, with high photosynthetic rates and low respiration (mainly maintenance respiration) enhancing biomass production (Zhu et al 2010). Light interception efficiency is determined by the speed of canopy development, light absorption by leaves, longevity, size, and architecture of the canopy (Zhu et al 2010, Davey et al 2017, and is dependent on genotype and planting density (Robertson et al 1996, Tejera et al 2007.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evidence of photosynthetic acclimation to self-shading in sugarcane canopies

Almeida¹,

Silveira²,

Miranda³

et al. 2022

Photosynt.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evidence of photosynthetic acclimation to self-shading in sugarcane canopies

Almeida¹,

Silveira²,

Miranda³

et al. 2022

Photosynt.

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“…varieties IACSP95-5000 and IACSP94-2094, two commercial varieties with differential biomass production and yield (Silva et al., 2016). IACSP95-5000 presents high yield in non-restrictive environments (Cruz et al., 2021), while IACSP94-2094 is considered rustic and drought-resistant and indicated for less favourable environments (Sales et al., 2013).…”

Section: Methodsmentioning

confidence: 99%

“…Considering an industrial perspective, the choice of varieties with high biomass production or high sugar yield depends on the purpose. For conventional first-generation ethanol production, one would prefer varieties with high sucrose concentration in stalks (De Almeida and Colombo, 2023), while the best options for the second-generation ethanol would be sugarcane varieties or other species with high biomass production, such as energy cane (Dias et al, 2012;Cruz et al, 2021). As lower sucrose concentration is compensated by higher biomass production, IACSP95-5000 would be a better option than IACSP94-2094 when the aim is the first (from sucrose) and second (from bagasse) generation ethanol.…”

Section: Stalk Sucrose Accumulation: An Interplay Between Leaves and ...mentioning

confidence: 99%

Physiological and biochemical processes underlying the differential sucrose yield and biomass production in sugarcane varieties

Martins,

Magalhães Filho,

Cruz

et al. 2024

Ex. Agric.

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Summary Sucrose yield in sugarcane is a complex process regulated by both environmental and endogenous factors. However, the metabolic balance driving vegetative growth and sucrose accumulation remains poorly understood. Herein, we carried out a comprehensive assessment of carbohydrate dynamics throughout the crop cycle in two sugarcane varieties varying in biomass production, evaluating the carbon metabolism in both leaves and stalks. Our data revealed that the decline in photosynthetic rates during sugarcane maturation is associated not only to accumulation of sugars in leaves but also due to stomatal and non-stomatal limitations. We found that metabolic processes in leaves and stalks were intrinsically linked. While IACSP94-2094 had higher stalk sucrose concentration than IACSP95-5000, this latter produced more biomass. Compared to IACSP95-5000, IACSP94-2094 showed higher sucrose phosphate synthase (SPS) activity in leaves and stalks, along with lower soluble acid invertase (SAI) activity in leaves during the maximum growth stage. Interestingly, IACSP94-2094 also exhibited higher stalk SPS activity and lower stalk SAI activity than IACSP95-5000 during maturation. High biomass production by IACSP95-5000 was associated with higher sucrose synthase (SuSy) and SAI activity in leaves and higher SuSy and soluble neutral invertase (SNI) activity in stalks when compared to IACSP94-2094 during the maximum growth. Despite the contrasting strategies, both varieties displayed similar total sucrose yield, a balance between sucrose concentration and biomass production. This phenomenon implies the presence of a compensatory mechanism in sugarcane, with high biomass production compensating low sucrose accumulation and vice versa.

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“…In such context, biomass emerged as an important source of energy, and energy cane arises as a viable option to the sucroenergetic sector (Alexander 1985;Triana et al 2008;Carvalho-Netto et al 2014;Matsuoka et al 2014; Grassi and Pereira 2019). The higher biomass production of energy cane when compared to sugarcane is frequently associated with its high tillering, vigorous root system with rhizomes, longevity of ratoon and rusticity to grown even under unfavorable conditions (Matsuoka and Cruz et al 2021). As biomass is formed by carbohydrates -the building blocks of chemical energy produced from the reaction of air CO 2 , water and sunlight -the photosynthetic process is a key physiological mechanism to understand the biomass production by plants.…”

Section: Introductionmentioning

confidence: 99%

Variation of photosynthesis along the canopy profile of sugarcane and energy canes

Cruz

Pacheco

Nogueira

et al. 2023

Preprint

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Energy cane (Saccharum spp. hybrid) is a sustainable feedstock for the sucroenergetic sector due to its capacity of producing more biomass than sugarcane (Saccharum spp. hybrid). As biomass is formed by carbohydrates, photosynthesis is a key physiological process to understand the biomass production by plants. Herein, one sugarcane (IACSP95-5000) and two energy canes (Vertix 2 and Vertix 3) genotypes were cultivated under greenhouse conditions to evaluate the photosynthetic capacity of top leaves and to measure the actual photosynthesis of all green leaves of the main tiller. All genotypes showed similar maximum and actual photosynthesis in the top leaves, which was not correlated to their biomass production. In fact, the effects of leaf aging on canopy CO2 uptake, differential tillering and respiration rate seem to explain biomass production. IACSP95-5000 showed a sharp decrease in several photosynthetic traits and in abundance of key photosynthetic enzymes along the canopy profile, resulting in the lowest biomass yield. Vertix 2 and Vertix 3 exhibited a canopy with higher photochemical activity and lower variation in abundance of key photosynthetic enzymes with leaf aging as well as more well-developed tillers as compared with IACSP95-5000. Moreover, Vertix 2 – bred for high fiber content – exhibited a more homogeneous photosynthesis with leaf aging and higher growth respiration rate, two physiological traits associated with the highest biomass production among genotypes evaluated.

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Morpho-physiological bases of biomass production by energy cane and sugarcane: A comparative study

Cited by 13 publications

References 27 publications

Evidence of photosynthetic acclimation to self-shading in sugarcane canopies

Evidence of photosynthetic acclimation to self-shading in sugarcane canopies

Physiological and biochemical processes underlying the differential sucrose yield and biomass production in sugarcane varieties

Variation of photosynthesis along the canopy profile of sugarcane and energy canes

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