American Journal of Potato Research最新文献

{"title":"Impact of Simulated Wildfire Smoke on Potato Growth, Storage and Profitability","authors":"Mike Thornton,&nbsp;Owen McDougal,&nbsp;Addie Waxman,&nbsp;Joe Guenthner,&nbsp;Ajay Atkinson","doi":"10.1007/s12230-025-10004-y","DOIUrl":"10.1007/s12230-025-10004-y","url":null,"abstract":"<div><p>Potato growers and processors throughout the Pacific Northwest have observed that extensive periods of smoke exposure from summer wildfires can have negative effects on potato crops (<i>Solanum tuberosum</i> L). Replicated field studies were conducted during 2022 and 2023 to document the impact of smoke exposure on yield, grade and storability of three russet potato cultivars (‘Russet Burbank’, ‘Clearwater Russet’, ‘Alturas’). Potato plants were treated from July 10 to August 18 each year in clear plastic-covered hoop house enclosures between 6:00 and 9:00am MST, before rising temperatures within the enclosures would cause heat stress. The fuel used to generate smoke consisted of a mixture of hard and soft wood tree species. Tubers were harvested in mid-September, graded, and samples placed into storage at 9^oC for 6 months. Yield, quality and decay after storage were used to calculate revenue and smoke impact using a potato processing contract. Potato plants exposed to smoke did not exhibit any visual symptoms and did not senescence earlier than plants not exposed to smoke. Smoke exposure caused a decline in proportion of U.S. No 1 tubers (<i>p</i> = 0.09). and a slight increase in the proportion of cull tubers (<i>p</i> = 0.08). The effect of smoke on cull production was more apparent during the 2022 trial when daytime high temperatures were often above the level considered optimum for potato growth, and less apparent in the more moderate conditions experienced during 2023. A similar effect was seen on specific gravity, with smoke treatment causing a significant decline in 2022 but not in 2023. Smoke treatments had no impact on weight loss but decreased decay after six months of storage. The three cultivars tended to exhibit different responses to smoke exposure in terms of proportion of &lt; 113 g and &gt; 170 g tubers (<i>p</i> = 0.06 and 0.04, respectively). Alturas and Russet Burbank exhibited no change in the percentage of &lt; 113 g and &gt; 170 g tubers due to smoke treatment in both 2022 and 2023. In contrast, Clearwater Russet showed an increase in &lt; 113 g tubers in 2022 due to smoke treatment and a decline in 2023. Clearwater Russet also exhibited a significant decline in the proportion of yield that was &gt; 170 g in response to smoke treatment in 2022, but no effect in 2023. The impact of smoke on crop revenue was variable, ranging from a 20% decrease to a 17% increase. It is unclear whether cultivar selection could be used as a tool to reduce the risk of losses due to wildfire smoke exposure.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 5","pages":"462 - 472"},"PeriodicalIF":1.8,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-10004-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145435783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genotyping wild Potato (Solanum) Seedlots Improves with High-Read Bulks","authors":"John Bamberg,&nbsp;Alfonso del Rio,&nbsp;Sean Fenstemaker","doi":"10.1007/s12230-025-10002-0","DOIUrl":"10.1007/s12230-025-10002-0","url":null,"abstract":"<div><p>Most of the germplasm in the US Potato Genebank is stored as seedlots with varying levels of genetic diversity both within and among them. Therefore, we aim to determine the most efficient method for measuring this diversity. A seedlot from each of four species of tuber-bearing <i>Solanum</i> representing different ploidies and breeding systems (<i>S</i>. <i>fendleri</i>, <i>jamesii</i>, <i>microdontum</i>, and <i>sucrense</i>), was sown to produce 24 individuals. Additionally, three types of bulk samples were created. These samples were genotyped using Genotyping By Sequencing (GBS) with enhanced read depth (&gt; 100 × per sample). We introduced the shorthand term “Cap2” for loci where the two SNP alleles, known to be present among individuals, were detected in the bulk (<i>i.e.</i>, Captured). After excluding loci with missing calls or one fixed allele, 100% of the remaining loci were considered potentially Cap2. Cap2 was evaluated for loci categorized by different combinations of average minor allele frequencies (MAF) among individuals and read depth of the bulks. For loci with at least 5% MAF and a minimum of 100 reads, the average Cap2 for individuals was 81%, while all bulks, irrespective of species or bulking method, showed a Cap2 bulk average of 100% (average of 8,000 loci with an average of 144 reads). While genotyping a large number of individuals in a seedlot provides a precise measure of diversity, bulking DNA of many individuals followed by assessment of only the high-read loci with a MAF of at least 5% offers an efficient and optimized method for detecting the genetic landscape of a population with just a single sample.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 5","pages":"419 - 423"},"PeriodicalIF":1.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145435779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stacking and Intersecting Nitrogen 4Rs on Potato: Economic Analysis","authors":"Samuel H. Stapley,&nbsp;Christopher S. McIntosh,&nbsp;Matt A. Yost,&nbsp;Neil C. Hansen,&nbsp;Ryan C. Christensen,&nbsp;Bryan G. Hopkins","doi":"10.1007/s12230-025-09999-1","DOIUrl":"10.1007/s12230-025-09999-1","url":null,"abstract":"<div><p>The 4Rs of nutrient management is an initiative to balance economics with sustainability. The objective was to evaluate individual and stacked 4R practices on potato (<i>Solanum tuberosum</i> L.) profitability. Treatments included all combinations of two nitrogen (N) sources (urea or polymer coated urea [PCU]), two rates (82 or 100%), and/or two timing/placements (at emergence or split-applied). Gross income and net profit were determined using yields, market sale data, and costs. Total gross income was greatest for PCU split applied and PCU at emergence in 2020 and 2023, respectively. Gross income and net profit were higher for the full rate for PCU compared to urea. The detrimental effect of the reduced rate disappeared with PCU, but not urea. A reduced rate of PCU was similar to a full rate of split applied urea. These data suggest that PCU is a profitable N source for potato even at reduced rates.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 5","pages":"440 - 448"},"PeriodicalIF":1.8,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-09999-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145435777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"108th Annual Meeting of The Potato Association of America, Abstracts and Posters, Oregon, USA July 21-24, 2024","authors":"","doi":"10.1007/s12230-025-10001-1","DOIUrl":"10.1007/s12230-025-10001-1","url":null,"abstract":"","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"305 - 347"},"PeriodicalIF":1.8,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chip Processing Potato Production Using Narrow Row Width","authors":"Phabian Makokha,&nbsp;Asunta L. Thompson,&nbsp;Erik Hanson,&nbsp;Gary A. Secor,&nbsp;Andrew P. Robinson","doi":"10.1007/s12230-025-10000-2","DOIUrl":"10.1007/s12230-025-10000-2","url":null,"abstract":"<div><p>The row width for chip processing potato cultivation in the Upper Midwest ranges from 91 to 96 cm, with 91 cm as the industry standard in Minnesota and North Dakota. A smaller tuber-size profile is desired for packaging and improved production. A study evaluated the effects of narrow row width on tuber yield and profitability. A split-plot design with a factorial arrangement of treatments evaluated five row-widths (71, 76, 81, 86, and 91 cm) and four cultivars (Dakota Pearl, Lady Liberty, Manistee, and Snowden) in 2022 and 2023, near Becker, MN, and Inkster, ND. Row widths of 71 and 76 cm increased marketable yield by 11 to 14% compared to 91 cm. Widths of 71, 76, and 86 cm increased profits by $1,392, $1,162, and $616 ha⁻¹, respectively, compared to the standard. Results demonstrate that producers can adopt narrower row widths to maximize efficiency and profitability in the Upper Midwest.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"410 - 417"},"PeriodicalIF":1.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-10000-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A scoping review of irrigation scheduling methods in potato (Solanum tuberosum L.) production","authors":"Abraham Rai,&nbsp;Younsuk Dong","doi":"10.1007/s12230-025-09997-3","DOIUrl":"10.1007/s12230-025-09997-3","url":null,"abstract":"<div><p>Potatoes benefit from irrigation management because of the significant effect of irrigation on both yield and quality. Precise irrigation of potatoes is challenging due to multiple factors, including their shallow root zone, daily evapotranspiration (ET) rates, and sensitivity to soil moisture fluctuations. These factors make it difficult to maintain optimal water availability without causing stress or oversaturation. Insufficient irrigation can result in yield loss ranging up to 50%, as well as leading to misshapen tubers, vascular necrosis, or hollow heart defects, making them non-marketable. Irrigation scheduling is an effective strategy to manage crop water needs throughout the growing season. Over the years, researchers have evaluated advanced irrigation scheduling utilizing sensor technology or models in potato production. This paper focuses on a review of advanced irrigation scheduling methods–soil based, ET based, and plant based–highlighting their effectiveness on water productivity and yield quality for potato production. With recommendations varying by scheduling methods, soil-based approaches suggest maintaining 80–90% field capacity (FC) to optimize yields and enhance water productivity. ET-based methods recommend irrigating at 80–100% of crop ET, while plant-based scheduling utilizing the crop water stress index (CWSI) advises initiating irrigation at values less than 0.4. Moreover, the sustainability of water resources in agriculture has been a concern due to the decline in groundwater levels in several agricultural regions. Thus, the review emphasizes the importance of irrigation scheduling in enhancing water productivity and discusses the contribution of irrigation scheduling to water sustainability in potato production.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"348 - 371"},"PeriodicalIF":1.8,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-09997-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tablestock Potato Production Using Narrower Row Widths","authors":"Phabian Makokha,&nbsp;Asunta L. Thompson,&nbsp;Erik Hanson,&nbsp;Gary Secor,&nbsp;Andrew P. Robinson","doi":"10.1007/s12230-025-09998-2","DOIUrl":"10.1007/s12230-025-09998-2","url":null,"abstract":"<div><p>Demand for tablestock potatoes with a smaller tuber size profile is increasing. A study assessing the effect of narrow row width on fresh market yield and economic value was conducted in 2022 and 2023, near Becker, MN, and Inkster, ND, using a split-plot design with factorial arrangement of treatments. Five row widths (71, 76, 81, 86, and 91 cm as the standard industry row width) and four cultivars (Agata, Musica, Modoc, and Red Norland) were evaluated. No differences in total yield or A-size tuber yield (≥ 5.7 to &lt; 8 cm diameter) were found for row width or the interaction of row width with cultivar. However, B-size tuber yield (≥ 4.8 to &lt; 5.7 diameter) increased by 31% (71 cm) and 23% (76 cm), compared to 91 cm standard row width; gross returns from B-size tubers also increased by 24% and 16%, respectively. Increased B-size tuber yield enhanced net returns by $918 to $1,370 ha⁻¹. Narrower row widths of 71 to 76 cm increased B-size tuber yield and net returns compared to 91 cm industry standard.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"402 - 409"},"PeriodicalIF":1.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-09998-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of 2E-Hexenal as an Alternative to Synthetic Fungicides for Pythium Leak Management in Stored Potatoes","authors":"Phillip S. Wharton,&nbsp;Alan Malek,&nbsp;Katie L. Malek","doi":"10.1007/s12230-025-09996-4","DOIUrl":"10.1007/s12230-025-09996-4","url":null,"abstract":"<div><p><i>Pythium ultimum</i>, the causal agent of Pythium leak, is a major postharvest pathogen of potatoes, leading to significant losses in storage. Current management strategies rely on fungicides and proper storage conditions, but there is an increasing need for alternative, organic-compatible solutions. This study evaluated the efficacy of the plant-derived volatile compound 2<i>E</i>-hexenal in controlling <i>P. ultimum</i> both in vitro and in storage conditions. In vitro experiments demonstrated that 2<i>E</i>-hexenal completely inhibited the growth of <i>P. ultimum</i> at a concentration of 2.5 µL/L. Large-scale storage studies, including tuber inoculation trials and naturally infected tuber trials conducted in 2016, 2020, and 2023, showed that 2<i>E</i>-hexenal treatments significantly reduced disease severity and incidence compared to untreated controls. Over multiple storage trials, disease severity was reduced by up to 85%, and disease incidence was consistently lower in treated tubers. Furthermore, in 2023, 2<i>E</i>-hexenal treatments outperformed phosphorous acid, reducing disease severity by an additional 50%. These findings indicate that 2<i>E</i>-hexenal has strong potential as a fumigant for controlling Pythium leak in stored potatoes, offering an alternative to conventional fungicides and meeting the growing demand for organic disease management strategies.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"388 - 401"},"PeriodicalIF":1.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-09996-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145169287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unraveling A Genome of Spongospora subterranea from North America","authors":"Augustina K. Arjarquah,&nbsp;Jatinder Singh,&nbsp;Kimberly Zitnick-Anderson,&nbsp;Binod Pandey,&nbsp;Ipsita Mallik,&nbsp;Upinder Gill,&nbsp;Julie S. Pasche","doi":"10.1007/s12230-025-09988-4","DOIUrl":"10.1007/s12230-025-09988-4","url":null,"abstract":"<div><p><i>Spongospora subterranea</i> f. sp. <i>subterranea,</i> a biotrophic soil-borne plasmodiophorid pathogen causes powdery scab of potato and vectors Potato mop-top virus (PMTV). Here, we present a genome of <i>S. subterranea</i> which will enhance our understanding of the pathogen’s genomic architecture. DNA was isolated from root galls from a single field-grown plant cv. Russet Burbank for Oxford Nanopore long-read sequencing and polished with Illumina sequences from sporosori collected from tuber pustules (<i>Sss</i>MN22-1). The resulting high-quality genome assembled to 31.51 Mb, with a GC content of 45.7% and 10,325 predicted protein-coding genes. Functional annotations revealed extensive biological insights, including 1,981 genes associated with Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, 2,644 genes linked to Cluster of Orthologous Genes (COG) classifications, and 2,249 genes containing Protein Family (Pfam) domains. Additionally, the analysis identified 135 carbohydrate-active enzyme (CAZyme) profiles and 321 effector proteins, underscoring its pathogenic potential. The genome exhibited high completeness, with 96.1% Benchmarking Universal Single-Copy Ortholog (BUSCO) genes detected based on the fungal lineage in the eukaryotic database. This improved genome resource advances our understanding of the poorly characterized <i>S. subterranea,</i> providing critical tools for deciphering its biology and pathogenesis. This knowledge will play a crucial role in developing effective strategies to manage powdery scab.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 3","pages":"220 - 231"},"PeriodicalIF":1.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12230-025-09988-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Germination of Diploid True Potato Seeds is Affected by Seed Treatment Methods and Time After Extraction but not Seed Extraction Methods","authors":"Daniel Balderrama,&nbsp;Kristen Brown-Donovan,&nbsp;Noah Williams,&nbsp;Diana Spencer,&nbsp;Paul Collins,&nbsp;Ek Han Tan","doi":"10.1007/s12230-025-09995-5","DOIUrl":"10.1007/s12230-025-09995-5","url":null,"abstract":"<div><p>The use of true potato seed (TPS) is fundamental to potato breeding and research, but can be hindered by poor germination and seed dormancy. TPS germination studies had focused mainly on seed treatment methods after seed extraction and not in combination with the seed extraction methods used. In potato, TPS extraction using water, using yeast fermentation or using sodium bicarbonate are common, but TPS extraction using dilute aqueous hydrochloric acid (HCl) followed by bleach treatment (3% sodium hypochlorite) had never been tested in potato even though this is standard practice for tomato seeds. Therefore, three seed extraction methods (water, 0.1 M HCl, and 0.8% yeast fermentation) in combination with three seed treatment methods (water, 1500 ppm GA₃, and 3% sodium hypochlorite) were tested on diploid TPS at 1 week and 1 month after seed extraction. TPS treated with GA₃ improved germination for both 1 week- and 1 month-old seeds, while TPS treated with 3% sodium hypochlorite only improved germination for 1 month-old seeds. This study shows that TPS extraction using water, yeast or HCl had no effect on germination, but supports the use of GA₃ or bleach to promote TPS germination.</p></div>","PeriodicalId":7596,"journal":{"name":"American Journal of Potato Research","volume":"102 4","pages":"380 - 387"},"PeriodicalIF":1.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}