Ecophysiological determinants of tuber yield as affected by potato genotype and phosphorus availability

Sandaña, Patricio; Kalazich, Julio

doi:10.1016/j.fcr.2015.05.005

Cited by 22 publications

(27 citation statements)

References 58 publications

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“…However, the sensitivity of RI to phosphorus deficiency potentially varied with the genotype. Daily RI constitutes a product of the daily fraction of radiation intercepted (FRI) by a crop and daily incident solar radiation (Sandaña and Kalazich 2015). Sandaña (2016) investigated phosphorus uptake and utilization efficiency in response to potato genotype and phosphorus availability and observed that tuber dry matter yield was positively related to total P uptake in two growth conditions corresponding to P fertilization rates of 0 and 130 kg ha -1 P.…”

Section: Resultsmentioning

confidence: 99%

Chemical composition of potato tubers: the effect of cultivars and growth conditions

et al. 2017

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The aim of the study involved evaluating the chemical composition of tubers of five potato cultivars that were grown under the same cultural practices in soils with low, medium, and high availability of phosphorus. The experimental designs corresponded to a randomized block with four replicates. Tuber samples were analyzed in terms of moisture, ash, protein, lipid, total sugar, fiber, starch, and phosphorus contents. The results suggested that increased availability of phosphorus in soil allowed the production of tubers with higher dry matter content, lower total sugar content, and a higher percentage of starch and protein. Hence, the aforementioned parameters constitute important factors corresponding to the nutritional and industrial quality of potatoes. Increased phosphorus availability in soil can promote significant changes in the composition of potato tubers, and thereby in potential uses of tubers.

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Section: Resultsmentioning

confidence: 99%

Chemical composition of potato tubers: the effect of cultivars and growth conditions

et al. 2017

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“…Studies on corn (Plénet et al 2000) and wheat (Sandana and Pinochet 2014) also revealed conservative HI under different P availabilities. As shown by Sandana and Kalazich (2015), conservative HI under different P availabilities could therefore be used in simulation modelling of potato yield responses to P supply.…”

Section: Phosphorus Offtake and Efficiencymentioning

confidence: 99%

“…Potato tuber yield and biomass production responses to P fertilization vary with genotypes (Sandana and Kalazich 2015). Differences in tuber yield have been related to genotypic differences in P use efficiency characteristics (Thornton et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Differences in tuber yield have been related to genotypic differences in P use efficiency characteristics (Thornton et al 2014). Sandana and Kalazich (2015) demonstrated that the ecophysiological parameters including radiation interception and radiation use efficiency which impact tuber yield and biomass are different among potato genotypes. In a pot experiment conducted in Brazil, Fernandes et al (2014) demonstrated that the amount of P accumulated by potato genotypes grown under P-deficient conditions was directly related to the root length and surface area.…”

Section: Introductionmentioning

confidence: 99%

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Potato Yield and Phosphorus Use Efficiency of Two New Potato Cultivars in New Brunswick, Canada

Nyiraneza¹,

Bizimungu²,

Messiga³

et al. 2017

Can. J. Plant Sci.

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This 2-yr (2013 and 2014) study evaluated the variation in tuber yield and selected indices of phosphorus (P) use efficiency of two new potato cultivars [AAC Alta Cloud (AC) and AAC Alta Strong (AS)] versus Russet Burbank (RB), the french fry industry standard. Initial P levels and P saturation index [(P/Al) × 100] ranged from 85 to 89.5 mg P kg −1 and from 4.6% to 5.6%, respectively. A complete randomized block design for each variety was laid out in three adjacent plots with six P fertilization rates. The average tuber yield ranged from 29.06 to 36.81 Mg ha −1 for AC, from 27.56 to 41.50 Mg ha −1 for AS, and from 38.15 to 42.02 Mg ha −1 for RB, with the highest yield observed in 2014. Tuber yield response to P application was described by the quadratic-plus-plateau model for AC and linear-plus-plateau model for AS with a mean critical (above which the yield response to P applications is unlikely) P rate of 40 kg P ha −1. Russet Burbank did not respond to P application. The trends of P uptake efficiency (PUE) for AC and AS mirrored that of tuber yield, while RB had a linear increase in PUE with P rate. The study highlights that current P recommendations for potatoes can be reduced without affecting yield, thus increasing farmers' economic returns. It also reveals the need to test optimal fertilization levels for new cultivars.

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“…• Tuber yield (e.g. Allen and Scott 1992;Bradshaw et al 2008;Daoui et al 2014;Soratto 2013, 2016ab;Fixen and Bruulsema 2014;Hailu et al 2017;Lahlou and Ledent 2005;Lee et al 2013;Manorama et al 2017;McCord et al 2011;Nyiraneza et al 2017;Sandaña 2016;Sandaña and Kalazich 2015;Soratto and Fernandes 2016;Soratto et al 2015;Trehan and Singh 2013;White et al 2009) • Phosphorus acquisition (Balemi 2011;Carpenter 1963;Soratto 2013, 2016a;Fernandes et al 2014Fernandes et al , 2015Hailu et al 2017;Nyiraneza et al 2017;Sandaña 2016;Soratto et al 2015;Sharma 2003, 2005;Trehan and Singh 2013) • Leaf P concentration (Balemi 2011;Balemi and Schenk 2009;Carpenter 1963;Dampney et al 2002;Fernandes and Soratto 2016ab;Fernandes et al 2014Fernandes et al , 2015Kärenlampi and White 2009;Lee et al 2013;Sandaña 2016;Soratto and Fernandes 2016;Soratto et al 2015;Sharma 2003, 2005) • Tuber P concentration (Bethke and Jansky 2008;…”

Section: Introductionmentioning

confidence: 99%

Juvenile root vigour improves phosphorus use efficiency of potato

et al. 2018

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Aims Potato (Solanum tuberosum L.) has a large phosphorus (P)-fertiliser requirement. This is thought to be due to its inability to acquire P effectively from the soil. This work tested the hypothesis that early proliferation of its root system would enhance P acquisition, accelerate canopy development, and enable greater yields. Methods Six years of field experiments characterised the relationships between (1) leaf P concentration ([P]leaf), tuber yield, and tuber P concentration ([P]tuber) among 27 Tuberosum, 35 Phureja and 4 Diploid Hybrid genotypes and (2) juvenile root vigour, P acquisition and tuber yield among eight Tuberosum genotypes selected for contrasting responses to P-fertiliser. Results Substantial genetic variation was observed in tuber yield, [P]leaf and [P]tuber. There was a strong positive relationship between tuber yields and P acquisition among genotypes, whether grown with or without P-fertiliser. Juvenile root vigour was correlated with accelerated canopy development and both greater P acquisition and tuber biomass accumulation early in the season. However, the latter relationships became weaker during the season. Conclusions Increased juvenile root vigour accelerated P acquisition and initial canopy cover and, thereby, increased tuber yields. Juvenile root vigour is a heritable trait and can be selected to improve P-fertiliser use efficiency of potato.

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Ecophysiological determinants of tuber yield as affected by potato genotype and phosphorus availability

Cited by 22 publications

References 58 publications

Chemical composition of potato tubers: the effect of cultivars and growth conditions

Chemical composition of potato tubers: the effect of cultivars and growth conditions

Potato Yield and Phosphorus Use Efficiency of Two New Potato Cultivars in New Brunswick, Canada

Juvenile root vigour improves phosphorus use efficiency of potato

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