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Analysis of Phosphorus Use Efficiency Traits in Coffea Genotypes Reveals Coffea arabica and Coffea canephora Have Contrasting Phosphorus Uptake and Utilization Efficiencies.

Neto AP, Favarin JL, Hammond JP, Tezotto T, Couto HT - Front Plant Sci (2016)

Bottom Line: Coffee plant growth was significantly reduced under low Pi availability, and P concentration was higher in cultivars of C. canephora.These data identify Coffea genotypes better adapted to low soil Pi availabilities, and the traits that contribute to improved P uptake and use efficiency.This could ultimately reduce the use of Pi fertilizers in tropical soils, and contribute to more sustainable coffee production.

View Article: PubMed Central - PubMed

Affiliation: Departamento de Produção Vegetal, Escola Superior de Agricultura Luiz de Queiroz, Universidade De São Paulo Piracicaba, Brazil.

ABSTRACT

Background and aims: Phosphate (Pi) is one of the most limiting nutrients for agricultural production in Brazilian soils due to low soil Pi concentrations and rapid fixation of fertilizer Pi by adsorption to oxidic minerals and/or precipitation by iron and aluminum ions. The objectives of this study were to quantify phosphorus (P) uptake and use efficiency in cultivars of the species Coffea arabica L. and Coffea canephora L., and group them in terms of efficiency and response to Pi availability.

Methods: Plants of 21 cultivars of C. arabica and four cultivars of C. canephora were grown under contrasting soil Pi availabilities. Biomass accumulation, tissue P concentration and accumulation and efficiency indices for P use were measured.

Key results: Coffee plant growth was significantly reduced under low Pi availability, and P concentration was higher in cultivars of C. canephora. The young leaves accumulated more P than any other tissue. The cultivars of C. canephora had a higher root/shoot ratio and were significantly more efficient in P uptake, while the cultivars of C. arabica were more efficient in P utilization. Agronomic P use efficiency varied among coffee cultivars and E16 Shoa, E22 Sidamo, Iêmen and Acaiá cultivars were classified as the most efficient and responsive to Pi supply. A positive correlation between P uptake efficiency and root to shoot ratio was observed across all cultivars at low Pi supply. These data identify Coffea genotypes better adapted to low soil Pi availabilities, and the traits that contribute to improved P uptake and use efficiency. These data could be used to select current genotypes with improved P uptake or utilization efficiencies for use on soils with low Pi availability and also provide potential breeding material and targets for breeding new cultivars better adapted to the low Pi status of Brazilian soils. This could ultimately reduce the use of Pi fertilizers in tropical soils, and contribute to more sustainable coffee production.

No MeSH data available.


Related in: MedlinePlus

Relationship between shoot dry matter (DM) at low P and responsiveness to P, measured as agronomic phosphorus (P) use efficiency for different coffee cultivars. Coffea arabica (closed symbols) and C. canephora (open symbols). Solid lines represent the mean value for the axis. NER, non-efficient and responsive; ER, efficient and responsive; ENR, efficient and non-responsive; NENR, non-efficient and non-responsive.
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Figure 2: Relationship between shoot dry matter (DM) at low P and responsiveness to P, measured as agronomic phosphorus (P) use efficiency for different coffee cultivars. Coffea arabica (closed symbols) and C. canephora (open symbols). Solid lines represent the mean value for the axis. NER, non-efficient and responsive; ER, efficient and responsive; ENR, efficient and non-responsive; NENR, non-efficient and non-responsive.

Mentions: The allocation into different groups of efficiency and response to Pi is based on the DM of the plants at low Pi (axis x) and agronomic P use efficiency (APE) index (axis y) of each cultivar (Gerloff, 1977). The average DM production of non-efficient cultivars was 25.2 g in low Pi, while efficient cultivars produced on average 31.8 g of DM in the same condition. The average APE for responsive cultivars was 24.27 g DM g−1 P, while the average for non-responsive cultivars was 15.99 g DM g−1 P. Of the 25 lines studied, only four C. arabica lines were classified as being efficient and responsive (Figure 2).


Analysis of Phosphorus Use Efficiency Traits in Coffea Genotypes Reveals Coffea arabica and Coffea canephora Have Contrasting Phosphorus Uptake and Utilization Efficiencies.

Neto AP, Favarin JL, Hammond JP, Tezotto T, Couto HT - Front Plant Sci (2016)

Relationship between shoot dry matter (DM) at low P and responsiveness to P, measured as agronomic phosphorus (P) use efficiency for different coffee cultivars. Coffea arabica (closed symbols) and C. canephora (open symbols). Solid lines represent the mean value for the axis. NER, non-efficient and responsive; ER, efficient and responsive; ENR, efficient and non-responsive; NENR, non-efficient and non-responsive.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4814561&req=5

Figure 2: Relationship between shoot dry matter (DM) at low P and responsiveness to P, measured as agronomic phosphorus (P) use efficiency for different coffee cultivars. Coffea arabica (closed symbols) and C. canephora (open symbols). Solid lines represent the mean value for the axis. NER, non-efficient and responsive; ER, efficient and responsive; ENR, efficient and non-responsive; NENR, non-efficient and non-responsive.
Mentions: The allocation into different groups of efficiency and response to Pi is based on the DM of the plants at low Pi (axis x) and agronomic P use efficiency (APE) index (axis y) of each cultivar (Gerloff, 1977). The average DM production of non-efficient cultivars was 25.2 g in low Pi, while efficient cultivars produced on average 31.8 g of DM in the same condition. The average APE for responsive cultivars was 24.27 g DM g−1 P, while the average for non-responsive cultivars was 15.99 g DM g−1 P. Of the 25 lines studied, only four C. arabica lines were classified as being efficient and responsive (Figure 2).

Bottom Line: Coffee plant growth was significantly reduced under low Pi availability, and P concentration was higher in cultivars of C. canephora.These data identify Coffea genotypes better adapted to low soil Pi availabilities, and the traits that contribute to improved P uptake and use efficiency.This could ultimately reduce the use of Pi fertilizers in tropical soils, and contribute to more sustainable coffee production.

View Article: PubMed Central - PubMed

Affiliation: Departamento de Produção Vegetal, Escola Superior de Agricultura Luiz de Queiroz, Universidade De São Paulo Piracicaba, Brazil.

ABSTRACT

Background and aims: Phosphate (Pi) is one of the most limiting nutrients for agricultural production in Brazilian soils due to low soil Pi concentrations and rapid fixation of fertilizer Pi by adsorption to oxidic minerals and/or precipitation by iron and aluminum ions. The objectives of this study were to quantify phosphorus (P) uptake and use efficiency in cultivars of the species Coffea arabica L. and Coffea canephora L., and group them in terms of efficiency and response to Pi availability.

Methods: Plants of 21 cultivars of C. arabica and four cultivars of C. canephora were grown under contrasting soil Pi availabilities. Biomass accumulation, tissue P concentration and accumulation and efficiency indices for P use were measured.

Key results: Coffee plant growth was significantly reduced under low Pi availability, and P concentration was higher in cultivars of C. canephora. The young leaves accumulated more P than any other tissue. The cultivars of C. canephora had a higher root/shoot ratio and were significantly more efficient in P uptake, while the cultivars of C. arabica were more efficient in P utilization. Agronomic P use efficiency varied among coffee cultivars and E16 Shoa, E22 Sidamo, Iêmen and Acaiá cultivars were classified as the most efficient and responsive to Pi supply. A positive correlation between P uptake efficiency and root to shoot ratio was observed across all cultivars at low Pi supply. These data identify Coffea genotypes better adapted to low soil Pi availabilities, and the traits that contribute to improved P uptake and use efficiency. These data could be used to select current genotypes with improved P uptake or utilization efficiencies for use on soils with low Pi availability and also provide potential breeding material and targets for breeding new cultivars better adapted to the low Pi status of Brazilian soils. This could ultimately reduce the use of Pi fertilizers in tropical soils, and contribute to more sustainable coffee production.

No MeSH data available.


Related in: MedlinePlus