Crop Science最新文献

{"title":"Unravelling the environmental drivers determining the residual fraction of soybean seed","authors":"Emelí Lopez, Santiago Alvarez Prado, José L. Rotundo, José A. Gerde","doi":"10.1002/csc2.21406","DOIUrl":"https://doi.org/10.1002/csc2.21406","url":null,"abstract":"There are three main components of soybean (<jats:italic>Glycine max</jats:italic> (L.) Merr.) seeds: protein, oil, and residual. The residual fraction includes soluble and insoluble carbohydrates, lignin, and minerals. Among soluble carbohydrates, the presence of raffinose family of oligosaccharides (RFOs) has poor nutritional value (i.e., raffinose and stachyose), and the inability of monogastric animals to digest them limits the potential use of soybean meal for food and feed applications. Our objective was to understand how different environmental conditions impact soybean seed quality, particularly the concentration of the residual fraction and its components. Nine commercial genotypes from three maturity groups were sown on early and late dates. The concentration of insoluble carbohydrates + lignin was positively associated with seed weight (<jats:italic>r</jats:italic> = 0.67) and negatively associated with the mean temperature during the seed‐filling period (R5–R7; <jats:italic>r</jats:italic> = −0.61). Within soluble carbohydrates, RFOs were negatively influenced by the mean temperature at the beginning of the seed‐filling period (R5–R6; <jats:italic>r</jats:italic> = −0.37), while sucrose concentration showed the opposite effect (<jats:italic>r</jats:italic> = 0.43). In contrast, precipitation exhibited a positive correlation with RFOs, whereas sucrose displayed a negative correlation (<jats:italic>r</jats:italic> = 0.38 and <jats:italic>r</jats:italic> = −0.42). This study showed that the decrease in protein concentration was related to the increase in the residual fraction of the seeds, and higher temperatures during seed‐filling period impacted the residual composition of the seeds, specifically by reducing RFO concentration.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"244 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic and genomic characterization of a multiparent advanced generation intercross (MAGIC) population of peanut (Arachis hypogaea L.)","authors":"Ethan Thompson, Hui Wang, Walid Korani, Jake C. Fountain, Albert K. Culbreath, C. Corley Holbrook, Josh P. Clevenger, Baozhu Guo","doi":"10.1002/csc2.21402","DOIUrl":"https://doi.org/10.1002/csc2.21402","url":null,"abstract":"Multiparent advanced generation intercross (MAGIC) populations are a new genetic resource for high‐resolution mapping of quantitative traits and as a source of new germplasm or improved cultivars for breeding due to the high level of recombination events in the population. Here, we have developed an eight‐founder MAGIC population for peanut (<jats:italic>Arachis hypogaea</jats:italic> L.) (PeanutMAGIC). Eight diverse founders were intercrossed using a simple funnel mating design to ensure that the MAGIC population would possess equal representation from each founder. This was followed by advancement using small family plot and single‐seed descent, resulting in 3187 F<jats:sub>2:7</jats:sub> recombinant inbred lines (RILs). The objective of this study was to introduce this PeanutMAGIC as a new resource for genetic and genomic studies. We randomly selected a smaller subset of 310 RILs (MAGIC Core) from PeanutMAGIC and conducted genotyping using whole genome sequencing and phenotyping over two growing seasons for seed and pod traits. Whole genome characterization of the MAGIC Core demonstrated that PeanutMAGIC harbors a balanced and evenly differentiated mosaic of genomic blocks from eight founders, providing unique recombination events for high‐resolution mapping of quantitative traits. Using 2‐year phenotypic data, we showed that PeanutMAGIC can improve genetic mapping power of a spectrum of qualitative, like seed coat color, to quantitative traits such as pod weight, seed weight, shelling percentage, pod constriction, and pod reticulation. These findings show that the PeanutMAGIC population can be used by the peanut research community as a new resource for genetic and genomic studies and for cultivar improvement.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"69 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing liquid‐applied iron sulfate rate and application interval for dollar spot suppression on golf course fairways","authors":"D. J. Soldat, K. Hockemeyer, D. S. McCall, C. M. Straw, P. L. Koch","doi":"10.1002/csc2.21407","DOIUrl":"https://doi.org/10.1002/csc2.21407","url":null,"abstract":"Iron sulfate applications reduce dollar spot severity on golf course turfgrass, but further optimizing the use of iron sulfate may increase efficacy and encourage more widespread adoption by golf course superintendents. Three iron sulfate rates (9, 18, 36 kg ha<jats:sup>−1</jats:sup>), two application intervals (7 and 14 days), three water volumes (306, 612, and 1223 L ha<jats:sup>−1</jats:sup>), and combinations with fertilizer and fungicide products were evaluated at field locations in Madison, WI, Bloomington, MN, and Blacksburg, VA, in 2018 and 2019. Iron sulfate rate decreased dollar spot at all locations in a dose‐dependent manner, and 7‐day applications were more efficacious than 14‐day applications. Water volume had no impact on disease severity at any location and combining iron sulfate with fertilizer had minimal impact as well. These results demonstrate improved iron sulfate strategies for dollar spot management and can be implemented by golf course superintendents in areas where fungicide resistance and fungicide regulations limit the use of traditional fungicides.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"7 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of genetic diversity and heterotic alignment of CIMMYT and IITA maize inbred lines adapted to sub‐Saharan Africa","authors":"Tinovonga Gonhi, Thomas Lapaka Odong, Isaac Onziga Dramadri, Mildred Ochwo‐Ssemakula, Zvenhamo Albert Chiteka, Emmanuel Amponsah Adjei, Dean Muungani, Abebe Menkir, Badu‐Apraku Baffour, Idris Adejumobi, Brigitte Uwimana, Thanda Dhliwayo, Dagne Wegary, John Derera","doi":"10.1002/csc2.21401","DOIUrl":"https://doi.org/10.1002/csc2.21401","url":null,"abstract":"Despite the breeding efforts by many institutions, maize (<jats:italic>Zea mays</jats:italic> L.) productivity in sub‐Saharan Africa is still low. A limited number of productive maize hybrids have been developed partly due to a lack of knowledge on the diversity and heterotic relationship of the germplasm, especially in public breeding programs. Understanding the extent of diversity, structure, and heterotic grouping of available maize germplasm originating from different breeding programs is important to enhance long‐term genetic gain in hybrid maize breeding programs by optimizing heterotic pools using modern breeding tools. Information about the genetic structure of the available germplasm could help breeders design effective breeding strategies to improve yield. This study was conducted to determine the genetic diversity, population structure, and heterotic alignment among 187 elite maize inbred lines from the IITA (International Institute of Tropical Agriculture) and CIMMYT (International Maize and Wheat Improvement Center) maize breeding programs. The inbred lines were genotyped with 9857 Diversity Array Technology sequencing based single nucleotide polymorphism markers. Hierarchical clustering revealed three major groups, with some subgroups consistent with the selection history, and pedigree of the inbred lines. Three broad groups were detected: two consisting of CIMMYT lines and a mixed group consisting of both CIMMYT and IITA inbred lines. The STRUCTURE analysis revealed six subpopulations (fixation index value = 0.58), which depicts a moderate genetic diversity among the materials. Population 2 comprises the highest number of genotypes (102) from both programs. More than 89% of the elite lines had homozygosity exceeding 95%, with the remaining lines requiring further inbreeding through repeated self‐pollination. There was inconsistency in the predetermined heterotic groups' alignment between CIMMYT and IITA elite inbred lines. Analysis of molecular variance revealed that 96% of the total variation was accounted for by differences within groups, with the remaining 4% representing the variation between groups. This suggests that the two programs can benefit from germplasm exchange for the improvement of maize productivity.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"64 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142594497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soybean water‐use efficiency increased over 80 years of breeding","authors":"Jose R. Costa Netto, Hussien I. Taresh Almtarfi, Jiahe Li, Derek T. Anderson, Felix B. Fritschi","doi":"10.1002/csc2.21404","DOIUrl":"https://doi.org/10.1002/csc2.21404","url":null,"abstract":"Breeders successfully increased US soybean [<jats:italic>Glycine max</jats:italic> (L.) Merr.] yields over the past nearly 100 years and altered various plant characteristics underpinning the yield gains. However, the impact of breeding on plant‐level water‐use efficiency (WUE<jats:sub>p</jats:sub>) has not been examined yet. This study, conducted across eight environments using maturity group IV cultivars released between 1930 and 2005, aimed to (1) determine if soybean WUE<jats:sub>p</jats:sub>, assessed using C isotope composition (δ<jats:sup>13</jats:sup>C) measurements on shoot biomass sampled at early seed filling (R5), has changed with cultivar year of release (YoR), and (2) assess how canopy temperature (CT) and WUE<jats:sub>p</jats:sub> relate to each other and to seed yield. Across environments and cultivars, δ<jats:sup>13</jats:sup>C ranged from −27.52‰ to −28.24‰ and the correlation between cultivar YoR and WUE<jats:sub>p</jats:sub> was positive in four individual environments (<jats:italic>p</jats:italic> ≤ 0.07), as well as across the eight environments (<jats:italic>p</jats:italic> = 0.0083), with an average increase of shoot δ<jats:sup>13</jats:sup>C of 0.004‰ per year of soybean breeding. Lower average δ<jats:sup>13</jats:sup>C values for specific environments were associated with higher precipitation prior to biomass sampling, which is consistent with a lower WUE<jats:sub>p</jats:sub> when more water was available. Interestingly, across environments, midday CT at early seed filling was negatively correlated with YoR and WUE<jats:sub>p</jats:sub>, suggesting that intrinsic WUE of more recently released cultivars was lower during high demand periods. Further studies are needed to understand the mechanisms underlying these relationships between WUE<jats:sub>p</jats:sub> and CT and to identify physiological mechanisms that can be targeted for breeding high‐yielding cultivars while increasing or maintaining WUE<jats:sub>p</jats:sub>.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"242 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic variation and population structure of the rice accessions maintained in the AfricaRice genebank using DArTseq","authors":"Arnaud Comlan Gouda, Jean Rodrigue Sangare, Karlin Gnikoua, Peterson Wambugu, Trevis D. Huggins, Marie Noelle Ndjiondjop","doi":"10.1002/csc2.21395","DOIUrl":"https://doi.org/10.1002/csc2.21395","url":null,"abstract":"Utilizing the full potential of rice collections mainly depends on an in‐depth exploration and understanding of the vast diversity in its germplasm. The AfricaRice genebank holds the largest collection of rice germplasm originating from the African continent. In the present study, we comprehensively characterized a collection of 9013 accessions, including <jats:italic>Oryza barthii</jats:italic> A. Chev., <jats:italic>Oryza glaberrima</jats:italic> Steud., <jats:italic>Oryza longistaminata</jats:italic> A. Chev. &amp; Roehr., <jats:italic>Oryza sativa</jats:italic> L. ssp. <jats:italic>indica</jats:italic>, and <jats:italic>Oryza sativa</jats:italic> L. ssp. <jats:italic>japonica</jats:italic>, for genetic diversity and population structure using genotyping‐by‐sequencing through DArTseq analysis. We identified 27,718 high‐quality single nucleotide polymorphism markers after the genotypic data were filtered. Based on the analyses, the collection has extensive genetic diversity, and the average genetic distance of the entire set was 0.267 (range 0.001–0.469), with 45.1% of pairs of accessions being highly distant and 40.1% moderately distant from each other. Neighbor‐joining tree, principal component, and Bayesian population structure analyses clustered the 9013 accessions into six groups, based roughly on their taxonomic and biological status. The first, second, and third groups consisted of accessions belonging to <jats:italic>O. glaberrima</jats:italic>, <jats:italic>O. barthii</jats:italic>, and <jats:italic>O. longistaminata</jats:italic>, respectively. The fourth, fifth, and sixth groups were improved‐<jats:italic>indica</jats:italic>, <jats:italic>japonica</jats:italic>, and traditional‐<jats:italic>indica</jats:italic> accessions, respectively. The highest value of genetic variance proportion (<jats:italic>PhiPT</jats:italic>) was found in the species group followed by groups based on cluster analysis and on Bayesian population structure at <jats:italic>K</jats:italic> = 6. These results allow us to better understand the genetic diversity present in 9013 rice accessions maintained in the AfricaRice genebank and offer a valuable tool for pre breeding, breeding, and further genetic applications.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"138 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating multi‐trophic effects of St. Augustinegrass cultivar blends in the Southeastern United States","authors":"James Louis Pinkney, Basil V. Iannone, Susana Milla‐Lewis, R. van der Laat, J. Bryan Unruh, Marco Schiavon, Adam G. Dale","doi":"10.1002/csc2.21399","DOIUrl":"https://doi.org/10.1002/csc2.21399","url":null,"abstract":"Warm‐season turfgrasses, including St. Augustinegrass [<jats:italic>Stenotaphrum secundatum</jats:italic> (Walt.) Kuntze], are produced and installed as monocultures of single cultivars. Recent research indicates that blending St. Augustinegrass cultivars can increase turfgrass stand resilience to insect pests, establishment of undesired plant species, and abiotic stressors without reducing plant performance. However, effects on specific key turfgrass insect pests are less documented and the mechanisms driving changes in turfgrass stand resilience are unclear. Moreover, it remains unknown if the effects of cultivar blends on biotic resistance vary across St. Augustinegrass’ range. Here, we pair a regional common garden observational field study with a controlled greenhouse experiment to isolate the effects of cultivar blends on the recruitment of predatory arthropods (top‐down pest regulation) and on southern chinch bug [<jats:italic>Blissus insularis</jats:italic> Barber] performance (bottom‐up pest regulation). We find that cultivar diversity has no effect on natural enemy recruitment but natural enemies do vary predictably with changes in geographic location. In contrast to our hypothesis, southern chinch bug reached higher densities in cultivar blends compared to cultivar monocultures, although this effect was driven by specific cultivar blends. Despite higher pest densities in turfgrass blends on average, blends of four St. Augustinegrass cultivars maintained a higher percent green cover than cultivar monocultures, suggesting that cultivar blends can persist longer under elevated pest densities compared to cultivar monocultures. Our findings can guide future research focused on blending warm‐season turfgrass cultivars as an integrated pest management strategy for more resilient and sustainable turfgrass lawns.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"26 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142580339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A finite mixture distribution to model genetic architecture of image‐based oat grain morphology","authors":"Inés Berro, Brian S. Yandell, Lucía Gutiérrez","doi":"10.1002/csc2.21400","DOIUrl":"https://doi.org/10.1002/csc2.21400","url":null,"abstract":"The multi‐floral oat (<jats:italic>Avena sativa</jats:italic> L.) inflorescence influences grain size and shape distributions, affecting the physical attributes of grain quality such as plumpness, size, and uniformity. While the grain size and shape distribution has been characterized as multi‐modal, very little is known about the genetic determinants of those distributions and their properties. The goal of this study was to model grain size and shape distribution using a finite mixture distribution approach and propose new distributional traits (i.e., emerging distributional traits) to characterize genotypes. We evaluated 47 oat genotypes in four highly replicated field experiments. Grains of three panicles per plot were individually threshed and scanned. Grain area, length, width, and roundness were obtained from each grain‐based image, while emerging distributional traits were evaluated using a finite mixture distribution approach. Finally, grain size distributions from hand‐threshed panicles (representing the full biological distribution) were compared with the grain size distributions of grains harvested with a combine harvester representing commercial harvest where small grains may be blown out. The heritability of all grain traits was high (0.89–0.94), and trait distributions differed among genotypes. Grain area and length show bi‐ and trimodal distributions, while grain width and roundness are uni‐ and bimodal. Although the full biological distribution of grains differed from the combine‐harvested grains, their genetic correlations were high, suggesting the combine‐harvested distributions can be used as a proxy for full biological distributions. This study proposes a straightforward methodological approach to model grain attributes that can aid in quality evaluations for genetic studies, breeding decisions, and industry characterization.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"19 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plant‐based protein crops and their improvement: Current status and future perspectives","authors":"Asheesh K. Singh, Dinakaran Elango, Joscif Raigne, Liza Van der Laan, Ashlyn Rairdin, Chandrakant Soregaon, Arti Singh","doi":"10.1002/csc2.21389","DOIUrl":"https://doi.org/10.1002/csc2.21389","url":null,"abstract":"The plant‐based protein industry is rapidly growing and is projected to grow to over $27 billion by 2030. In addition to monetary benefits, plant‐based protein crops, particularly pulse crops (i.e., legume species with dry edible seed), can supplement the existing crop biodiversity and break the disease and insect pest cycle in drastically changing climatic conditions. Most commercially available plant‐based protein ingredients come from only 2% of the 150 plant species on which our food supply depends. Therefore, it is imperative to diversify the cropping system with pulse crops that provide a more nutritious, climate‐resilient, sustainable food value chain. At present, a large portion of US pulse crop production is exported, yet the shifting demographics, dietary preferences, and a rise in domestic consumption present enormous potential for existing and emerging pulse crops, as well as their breeding. Despite a rise in demand from consumers and industries, farmers are yet to fully reap the benefits of these crops due to a shortage of improved varieties. These new varieties could lead to a diverse, sustainable protein supply that satisfies the growing domestic and global demand for plant‐based foods. This review intends to comprehensively explore the geographical and cultural acceptance of plant‐based proteins, manufacturing techniques, protein products, anti‐nutritional factors, techniques and tools for protein estimation, high‐throughput estimation of seed protein, protein composition requirements in food, breeding strategies, crop improvement, and resources to improve plant‐based protein pulse crops.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"116 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Shade, height of cut, and plant growth regulator effects on bermudagrass and zoysiagrass putting greens","authors":"Thomas E. Walton, John H. McCalla, Douglas E. Karcher, Wendell J. Hutchens, Ambika Chandra, Michael D. Richardson","doi":"10.1002/csc2.21394","DOIUrl":"https://doi.org/10.1002/csc2.21394","url":null,"abstract":"Warm‐season turfgrasses, especially hybrid bermudagrass (<jats:italic>Cynodon dactylon</jats:italic> (L.) Pers × <jats:italic>Cynodon transvaalensis</jats:italic> Burtt‐Davy), continue to be widely used on golf course putting greens in tropical and subtropical climates globally and are also gaining popularity in the transition zone region of the United States. Hybrid bermudagrass produces a high‐quality putting green surface; however, it has relatively poor shade and cold tolerance. Recently, fine‐textured zoysiagrass (<jats:italic>Zoysia spp</jats:italic>.) cultivars have been released and may be another potential option for golf course putting greens, especially since zoysiagrass is generally considered more shade tolerant than bermudagrass. “Lazer (DALZ 1308)” zoysiagrass (<jats:italic>Zoysia matrella</jats:italic> (L.) Merrill × <jats:italic>Zoysia minima</jats:italic> (Colenso) Zotov) is a new, fine‐textured zoysiagrass that may have the potential to produce high‐quality putting green surfaces in transition zone environments. The objective of this 2‐year field trial was to compare Lazer zoysiagrass to TifEagle bermudagrass under varying light levels (0%, 20%, 40%, 60%, and 80% shade) and management practices to determine the minimum daily light integral (DLI) requirements and surface playability characteristics (ball roll distance and surface firmness) for each species. Species plots were split with two mowing heights (2.5 and 3.2 mm) and further split with or without weekly applications of the plant growth regulator, trinexapac‐ethyl. Lazer demonstrated significantly greater shade tolerance than TifEagle. The minimum DLI requirement for Lazer was generally about 10 mol m<jats:sup>−2</jats:sup> day<jats:sup>−1</jats:sup> less than TifEagle. Surface firmness was also greater for Lazer zoysiagrass, while TifEagle consistently produced greater ball roll distances than Lazer. Results from this trial demonstrate that Lazer zoysiagrass can produce acceptable putting green conditions and is better adapted than TifEagle to moderate shade conditions.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"41 1","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142489472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}