Abstract
Silicon (Si) application has improved yield and stress tolerance in sugarcane crops. In this respect, C:N:P stoichiometry makes it possible to identify flows and interaction between elements in plants and their relationship with growth. However, few studies have investigated the influence of Si on physiological variables and C:N:P stoichiometry in sugarcane. As such, this study aimed to assess the effect of increasing Si concentrations on the growth and stoichiometric composition of sugarcane plants in the early growth stage. The experiment was conducted in pots, using four Si concentrations (0, 0.8, 1.6 and 3.2 mM). Biomass production, the concentration and accumulation of C, N, P and Si as well as the relationship between them were assessed. Silicon application increased biomass production, the rate of photosynthesis, instantaneous carboxylation efficiency and C, N, P and Si accumulation, in addition to altering stoichiometric ratios (C:N, C:P, N:P and C:Si) in different parts of the plants. The decline in C concentration associated with greater N and P absorption indicates that Si favoured physiological processes, which is reflected in biomass production. Our results demonstrate that Si supply improved carbon use efficiency, directly influencing sugarcane yield as well as C and nutrient cycling.
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Claims 6
Claim · model-written summary
Silicon application increased sugarcane biomass production.
Not reportedComparator
Verbatim
e0“Silicon application increased biomass production, the rate of photosynthesis, instantaneous carboxylation efficiency and C, N, P and Si accumulation”
t0“sugarcane”
Claim · model-written summary
Silicon application increased sugarcane photosynthetic rate and instantaneous carboxylation efficiency.
- Taxon
- sugarcanet0
- Treatment
- Silicon applicatione0
- Outcome
- rate of photosynthesis, instantaneous carboxylation efficiencye0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Silicon application increased biomass production, the rate of photosynthesis, instantaneous carboxylation efficiency and C, N, P and Si accumulation”
t0“sugarcane”
Claim · model-written summary
Silicon application increased C, N, P and Si accumulation in sugarcane.
- Taxon
- sugarcanet0
- Treatment
- Silicon applicatione0
- Outcome
- C, N, P and Si accumulatione0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Silicon application increased biomass production, the rate of photosynthesis, instantaneous carboxylation efficiency and C, N, P and Si accumulation”
t0“sugarcane”
Claim · model-written summary
Silicon application altered C:N, C:P, N:P and C:Si ratios in different sugarcane parts.
- Taxon
- sugarcanet0
- Treatment
- Sie1
- Outcome
- stoichiometric ratios (C:N, C:P, N:P and C:Si)e0
- Direction
- alteringe0
Not reportedComparator
Verbatim
e0“altering stoichiometric ratios (C:N, C:P, N:P and C:Si) in different parts of the plants”
t0“sugarcane”
e1“Silicon application”
Claim · model-written summary
Lower C concentration with greater N and P absorption suggests silicon favored physiological processes reflected in biomass production.
Verbatim
e0“The decline in C concentration associated with greater N and P absorption indicates that Si favoured physiological processes, which is reflected in biomass production”
t0“sugarcane”
Claim · model-written summary
Silicon supply improved carbon use efficiency in sugarcane.
Not reportedComparator
Verbatim
e0“Si supply improved carbon use efficiency”
t0“sugarcane”
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