Nitrogen uptake and utilization in advanced fresh‐market red potato breeding lines

Jones, Colin R.; Michaels, Thomas E.; Carley, Cari Schmitz; Rosen, Carl J.; Shannon, Laura M.

doi:10.1002/csc2.20297

Cited by 10 publications

(12 citation statements)

References 73 publications

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“…We observed an inverse relationship between applied N and NUE (Figure 3), which is consistent with previous studies [42,60]. The calculated NUE values reflect NUE in its simplest form, tuber yield per unit N input.…”

Section: Quality Traits Should Be Considered When Assessing How a Clone Responds To Nsupporting

confidence: 91%

“…Generally speaking, plot management followed standard agronomic practices common to potato production in the sand plains region, with the exception of fertilizer application rate. Both sites were on flat, excessively drained, Hubbard-Mosford complex, loamy sand soil [46] with~1.7% OM,~5.0 pH, prior to planting in 2017 [42].…”

Section: Cultivation Practicesmentioning

confidence: 99%

“…Makani et al [58] also reported a significant yield increase for table stock potatoes when N rate was increased from 0 to 224 kg/ha. Jones et al [42] observed higher yield at 81.6 kg N than 40.8 kg N in red potatoes, but they did not observe variety-specific interactions and generally found more year-to-year stability in quality traits at low N. Similarly, Ospina et al [59] found high-yielding clones were higher-yielding at both high and low N. More research using red potatoes corroborating our observations of yield, skin, and shape traits could allow agronomists to recommend against this insurance policy strategy, allowing growers to maintain high yields, improve crop returns by lowering input costs, and do less damage to the environment.…”

Section: More N Is Not Necessarily Bettermentioning

confidence: 99%

“…Nitrogen affected size distribution in both years of our experiment, but there were only genotype-specific responses to N in 2018. In general, increasing N rate increases tuber size [42,60]. Because variety by N level interaction can be masked by environmental effects, care must be taken when including size distribution in evaluation of NUE.…”

Section: Quality Traits Should Be Considered When Assessing How a Clone Responds To Nmentioning

confidence: 99%

“…We suspect an effect of N on skin set because excess N delays vine maturity [40], and vine maturity is a key factor in determining skin set [41]. Furthermore, N effects tuber lightness [42].…”

Section: Introductionmentioning

confidence: 99%

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Genotype and Variable Nitrogen Effects on Tuber Yield and Quality for Red Fresh Market Potatoes in Minnesota

et al. 2021

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Potato (Solanum tuberosum) production generally requires added nitrogen (N), which is costly and potentially environmentally damaging. One path to limiting N application is breeding N efficient potatoes. Effective use of nitrogen, across crops, is typically characterized in terms of yield. However, tuber quality characteristics affect potato marketability, especially for red fresh market potatoes. While optimal N rates maximize yield, the genotype-specific effect of N on tuber quality traits is unclear. In order to highlight quality traits effected by N, identify germplasm with lower N requirements, and determine optimal N rates for red-skinned clones, we conducted a variable N rate experiment over two years in Minnesota. Eight red fresh market genotypes were grown in RCB factorial design with five nitrogen application rates ranging from 0 to 81.6 kg/ha. Best linear unbiased estimates were calculated for yield, skin color, skin set, and tuber shape. The models for yield and quality traits included significant genotype by N rate interaction effects, suggesting that there is variation in the way clones respond to N. Established varieties were more responsive to added N than breeding lines. Similarly, established varieties tended to produce more oblong tubers under higher N conditions, while the breeding lines remained round. Color traits also responded to N in a genotype-specific way, while the interaction effect for other traits depended on unmeasured environmental factors. No clone exhibited increased yield above the 54.4 kg/ha rate. Our results suggest that the 81.6 kg/ha rate produced less favorable phenotypes for all traits.

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Section: Quality Traits Should Be Considered When Assessing How a Clone Responds To Nsupporting

confidence: 91%

Section: Cultivation Practicesmentioning

confidence: 99%

Section: More N Is Not Necessarily Bettermentioning

confidence: 99%

Section: Quality Traits Should Be Considered When Assessing How a Clone Responds To Nmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genotype and Variable Nitrogen Effects on Tuber Yield and Quality for Red Fresh Market Potatoes in Minnesota

et al. 2021

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Genotype-by-Environment Interaction for Quantitative Trait Loci Affecting Nitrogen Use Efficiency and Associated Traits in Potato

et al. 2022

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Deciphering the genetic basis of complex traits like nitrogen use efficiency (NUE) requires understanding the genotype-by-environment (G × E) interaction and linking physiological functions and agronomic traits to DNA markers. Multi-environment experiments were conducted in different environments representing low and high nitrogen levels combined with rain-fed and irrigation production conditions at three different locations in Ethiopia: Debre-Tabor, Injibara and Koga, in 2013 and 2015. The objectives of the study were to determine the G × E interaction and stability of genotypes for NUE of potato and to identify markers associated with NUE and NUE-related agronomic and physiological traits in potato under these diverse environments. Data were analyzed using GenStat, and genotype plus the genotype and environment (GGE) biplot model; the marker-trait associations were discovered using the R-software package GWASpoly. The analysis of variance that included location and production system had estimates for genotype variance (σ2g) that were low compared with the estimates for environment variance (σ2e) and genotype-by-environment interaction variance (σ2ge) for most measured traits at both N levels. The GGE analysis identified two mega-environments that coincided with the two production systems. The high N level environments both at Debre-Tabor and Injibara, and the low N environment at Koga, respectively, were the most suitable environments for discriminating the potato cultivars and being representative test environments for NUE evaluation in the rain-fed mega-environment and irrigation mega-environment. A total of 77 marker trait associations were identified for NUE and NUE-related agronomic and physiological traits. Multi-trait genomic regions that harbored significant marker-trait associations for NUE and NUE-related traits were found on chromosomes III, V and VI. The effect of production season was greater than the effect of N levels on QTL × environment interaction for most NUE-related traits.

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Yield responses of four common potato cultivars to an industry standard and alternative rotation in Atlantic Canada

et al. 2022

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This study was conducted to evaluate yield responses of four potato (Solanum tuberosum L.) cultivars (‘Russet Burbank’, ‘Shepody’, ‘Gold Rush’, and ‘Russet Prospect’) and soil N dynamic changes to two 3-year rotations in Prince Edward Island, Canada. The two rotations were the local industry standard potato–barley (Hordeum vulgare L.)–red clover (Trifolium pratense L.) rotation (PBC) and an alternative potato–soybean (Glycine max L.)–barley rotation (PSB). All potato cultivars received 170 kg N ha− 1 input at planting without irrigation. Soil mineral N content before potato planting was significantly higher under the PBC rotation. However, the PBC rotation produced significantly lower yields, suggesting the possibility of excessive N supply from the plowed-down red clover. While cultivar and the interaction between cultivar and rotation did not show a significant difference in yield, yields of all cultivars were positively affected by the PSB rotation. The Gold Rush cultivar was affected the most (36%), followed by Russet Burbank (17%) and Prospect (14%) cultivars, with Shepody being the least affected (3%) by the alternative PSB rotation. Russet Burbank was the highest yielding cultivar under both rotations. With the three russet cultivars combined as a single russet cultivar, the PSB rotation significantly increased tuber yields, while the Shepody cultivar did not significantly benefit from the PSB rotation, suggesting that the russet cultivars responded more sensitively to the alternative rotation. Results demonstrate that adequately accounting for N supply from a preceding green manure crop is required for sustainable potato production in this humid temperate region.

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Nitrogen uptake and utilization in advanced fresh‐market red potato breeding lines

Cited by 10 publications

References 73 publications

Genotype and Variable Nitrogen Effects on Tuber Yield and Quality for Red Fresh Market Potatoes in Minnesota

Genotype and Variable Nitrogen Effects on Tuber Yield and Quality for Red Fresh Market Potatoes in Minnesota

Genotype-by-Environment Interaction for Quantitative Trait Loci Affecting Nitrogen Use Efficiency and Associated Traits in Potato

Yield responses of four common potato cultivars to an industry standard and alternative rotation in Atlantic Canada

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