Phosphorus uptake and utilization efficiency in response to potato genotype and phosphorus availability

Sandaña, Patricio

doi:10.1016/j.eja.2016.02.003

Cited by 61 publications

(53 citation statements)

References 50 publications

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“…In line with the current finding, the apparent recovery of P due to P fertilizer application on wheat was 14.0% when 10 kg P ha -1 was applied and declined to 12.7% when the P rate was increased to 30 kg P ha -1 (Getachew and Tekalign, 2003). Similarly, Sandana (2016) reported that the level of nutrient fertilization affects the nutrient availability in soil. At high contents of soil nutrients, more nutrients might be taken up by plants and their utilization depends on the fact that the crops may vary in the recovery of the applied nutrients.…”

Section: Apparent Recovery (Ar) Of N and P In Fruits Of Hot Peppermentioning

confidence: 97%

Effects of blended fertilizer types and rates on fruit yield and nutrient use efficiencies of hot pepper (Capsicum annuum L.) at Asossa, Western Ethiopia

Fufa¹,

Abera²

2019

Afr. J. Agric. Res.

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A field experiment was conducted to evaluate the effects of different blended fertilizer types (NPSB and NPSBZn) and their rates on fruit yield, nutrient concentration, nutrient uptake and nutrient use efficiency of hot pepper at Assosa, Western Ethiopia. The experiment was set with eight treatments (recommended NP, three different blended rates for each NPSB and NPSBZn and unfertilized plot) laid out in randomized complete block design with three replications using a hot pepper variety Mereko Fana. In the blends since N content was low, supplementary N was applied from Urea to optimize N needs of the crop. The results of the study revealed that the crop phonological parameters (days to flowering and maturity, fruit dry yield and average dry fruit weight) were significantly (p<0.05) affected by blended fertilizer type and rates. The days to flowering and maturity were significantly (p<0.05) improved by application of 100 kg NPSBZn + 29 N kg ha-1. The maximum total dry fruit yields (2.44 t ha-1), the highest fruit uptake of nitrogen (50.1), phosphorus (9.9) and sulfur (4.1 kg ha-1), and the highest apparent nutrient recovery for N (47.91%) were recorded with the application of 150 kg + 44 N kg ha-1 NPSBZn; while higher agronomic efficiency of N (9.59 kg pod kg-1) and P (12.80%) were recorded with the application of 100 kg + 29 N kg ha-1 blended fertilizer rate. In general, the nutrient use efficiency of the blended fertilizers tested was acceptable and high. The uptake of N, P, K and S were significantly and highly correlated (p< 0.01) with total dry fruit yield. Therefore, the study recommends 150 kg NPSBZn + 44 N kg ha-1 blended fertilizer for sustainable hot pepper production in Assosa area of Western Ethiopia.

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Section: Apparent Recovery (Ar) Of N and P In Fruits Of Hot Peppermentioning

confidence: 97%

Effects of blended fertilizer types and rates on fruit yield and nutrient use efficiencies of hot pepper (Capsicum annuum L.) at Asossa, Western Ethiopia

Fufa¹,

Abera²

2019

Afr. J. Agric. Res.

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“…K uptake efficiency (KUpE) was measured as a ratio between K uptake and K available. Finally, the K use efficiency (KUE) was estimated as a product of KUtE and KUpE (Sandaña, 2016).…”

Section: Potassium Estimationmentioning

confidence: 99%

“…Therefore, K-use efficiency (KUE) cannot be increased by KUpE alone (Gamuyao et al, 2012), and thus the Kutilization capacity of plants (KUtE) must also be improved to achieve a higher KUE (Rose and Wissuwa, 2012). Plants with high KUE have a higher KUpE and KUtE (El Bassam, 1997;Zhang et al, 2007), thus KUE is defined as a product of the two (Sandaña, 2016). Several studies in the past have reported the genotypic variation of KUE in wheat (Guoping et al, 1999;George et al, 2002;Damon and Rengel, 2007;Pettigrew, 2008;Rengel and Damon, 2008;Wang and Wu, 2015).…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Association Study and QTL Meta-Analysis Identified Novel Genomic Loci Controlling Potassium Use Efficiency and Agronomic Traits in Bread Wheat

et al. 2020

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Potassium use efficiency, a complex trait, directly impacts the yield potential of crop plants. Low potassium efficiency leads to a high use of fertilizers, which is not only farmer unfriendly but also deteriorates the environment. Genome-wide association studies (GWAS) are widely used to dissect complex traits. However, most studies use singlelocus one-dimensional GWAS models which do not provide true information about complex traits that are controlled by multiple loci. Here, both single-locus GWAS (MLM) and multi-locus GWAS (pLARmEB, FASTmrMLM, mrMLM, FASTmrEMMA) models were used with genotyping from 90 K Infinium SNP array and phenotype derived from four normal and potassium-stress environments, which identified 534 significant marker-trait associations (MTA) for agronomic and potassium related traits: pLARmEB = 279, FASTmrMLM = 213, mrMLM = 35, MLM = 6, FASTmrEMMA = 1. Further screening of these MTA led to the detection of eleven stable loci: q1A, q1D, q2B-1, q2B-2, q2D, q4D, q5B-1, q5B-2, q5B-3, q6D, and q7A. Moreover, Meta-QTL (MQTL) analysis of four independent QTL studies for potassium deficiency in bread wheat located 16 MQTL on 13 chromosomes. One locus identified in this study (q5B-1) colocalized with an MQTL (MQTL _11 ), while the other ten loci were novel associations. Gene ontology of these loci identified 20 putative candidate genes encoding functional proteins involved in key pathways related to stress tolerance, sugar metabolism, and nutrient transport. These findings provide potential targets for breeding potassium stress resistant wheat cultivars and advocate the advantages of multi-locus GWAS models for studying complex traits.

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“…PUE (kg biomass kg -1 P available (P from soil plus fertilizer)) for biomass production can be defined as the product of P uptake efficiency (kg P uptake kg -1 P available) and P utilization efficiency (kg biomass kg -1 P uptake) (Ortiz-Monasterio et al, 2001;Sandaña and Pinochet, 2014;Sandaña, 2016). Despite the global need to improve the PUE of crops, the degree of knowledge reached among crop species regarding their PUE is unequal.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus acquisition of wheat, pea and narrow-leafed lupin under different P supplies

Sandaña

Pinochet

2016

J. Soil Sci. Plant Nutr.

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The aim of this study was to compare wheat, pea and narrow-leafed lupin in terms of their ability to acquire P from soil. Two experiments were conducted at the Universidad Austral de Chile. Treatments combined (i) three species (wheat, pea and lupin) and (ii) two rates of P fertilization (0 (P0) and 50 mg P kg -1 (P1)). In Experiment 1 and 2, shoot biomass was affected (P < 0.01) by genotype, P rate and the genotype x P rate interaction. In wheat, pea and lupin P0 reduced this trait by 92, 76 and 41%, respectively, whereas in Experiment 2 these reductions were 86, 58 and 44%, respectively. P1 increased the P uptake of wheat, pea and lupin by 17, 5 and 3 times, respectively. Wheat, pea and lupin showed the highest, intermediate and lowest cumulative root length under P fertilization. The root: shoot ratio and P uptake per unit root length was affected by genotype, P rate and the genotype x P rate interaction. Wheat, pea and lupin showed the highest, intermediate and the lowest root: shoot ratio, respectively. In contrast, wheat and lupin showed the lowest and the highest P uptake per unit root length in both experiments. The present study showed consistent differences between wheat, pea and lupin regarding their sensitivity to P deficiency and the strategies that these species have developed to acquire P from soil. This information could help improve fertilizer management strategies and optimize soil P use.

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Phosphorus uptake and utilization efficiency in response to potato genotype and phosphorus availability

Cited by 61 publications

References 50 publications

Effects of blended fertilizer types and rates on fruit yield and nutrient use efficiencies of hot pepper (Capsicum annuum L.) at Asossa, Western Ethiopia

Effects of blended fertilizer types and rates on fruit yield and nutrient use efficiencies of hot pepper (Capsicum annuum L.) at Asossa, Western Ethiopia

Genome-Wide Association Study and QTL Meta-Analysis Identified Novel Genomic Loci Controlling Potassium Use Efficiency and Agronomic Traits in Bread Wheat

Phosphorus acquisition of wheat, pea and narrow-leafed lupin under different P supplies

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