@article{campbell_seepaul_iboyi_anderson_baldwin_bennett_crozier_george_hagan_lee_et al._2023, title={Agronomic performance and the effect of genotype-by-environment interaction for Brassica carinata in the southeastern US}, volume={203}, ISSN={["1872-633X"]}, DOI={10.1016/j.indcrop.2023.117196}, abstractNote={Carinata (Brassica carinata A. Braun) is an emerging oilseed crop with potential as a dual use winter cover/cash crop in the southeastern US region. Although carinata is historically cultivated as a spring crop in northern latitudes, incorporating carinata into southeastern US cropping systems can provide winter/cover ecosystem services and a bio-feedstock for a high value, renewable aviation fuel without displacing feed and food crops. In this study, our major objective was to quantify the agronomic performance and stability of selected carinata genotypes across several locations in the southeastern US. Extensive field evaluations of twelve, elite carinata genotypes, arranged in a randomized complete block design with four replications, were conducted from 2016 to 2019 across Mississippi, Alabama, Georgia, Florida, South Carolina, and North Carolina. Data was collected on days to 50% bolting, days to 50% flowering, plant height, grain yield, and test weight. Results demonstrated the ability to produce viable grain yields across the region, but also highlighted the impact of freezing temperatures on winter production. In total 20% of all environments were lost to mortality due to freezing temperatures. Overall, genotype 15 produced the highest grain yield across individual environments, topping the trial in 74% of all environments. However, both crossover and non-crossover genotype × environment interactions were detected for agronomic traits, with problematic crossover interactions more prevalent for days to 50% bolting and days to 50% flowering. Our results also suggest the southeastern US be separated into three mega environments to include 1) northern Georgia, South Carolina, and North Carolina, 2) southern and central Georgia and Alabama, and 3) northern Florida. Future efforts to identify advanced breeding lines and/or commercial seed products with adaptation to the region should consider field testing in each of these mega environments.}, journal={INDUSTRIAL CROPS AND PRODUCTS}, author={Campbell, B. Todd and Seepaul, Ramdeo and Iboyi, Joseph E. and Anderson, William F. and Baldwin, Brian S. and Bennett, Rick and Crozier, Carl R. and George, Sheeja and Hagan, Austin K. and Lee, Dewey and et al.}, year={2023}, month={Nov} }
 @article{bashyal_mulvaney_crozier_iboyi_perondi_post_iskandar_leon_landry_wilson_et al._2023, title={Brassica carinata nutrient accumulation and partitioning across maturity types and latitude}, volume={2}, ISSN={["1435-0653"]}, url={https://doi.org/10.1002/csc2.20900}, DOI={10.1002/csc2.20900}, abstractNote={AbstractAs a recently introduced crop in the United States, there are limited data regarding temporal nutrient accumulation and partitioning dynamics of Brassica carinata (carinata). A four site‐year study was conducted in Jay, FL and Salisbury, NC during the 2018–2019 and 2019–2020 growing seasons. Three carinata genotypes (DH‐157.715, M‐01, and Avanza 641) proposed by the industry to represent early‐, mid‐, and full‐season genotypes, respectively, were sampled at multiple growth stages and partitioned into leaves, stems, reproductive parts (flowers plus pods), and seed to determine biomass and nutrient accumulation across three genotypes in Florida and one full season genotype in North Carolina. Averaged over two site‐years and genotypes in Florida, accumulation (per ha) of 169 kg N, 22 kg P, 160 kg K, 58 kg S, 475 g Zn, and 218 g B was required to produce 1635 and 10,872 kg ha−1 of seed yield and biomass, respectively. Nutrients with high harvest index values included P (60%), N (55%), S (32%), and Mg (29%). Averaged over two site‐years in North Carolina, accumulation (per ha) of 178 kg N, 26 kg P, 87 kg K, 24 kg S, 416 g Zn, and 127 g B produced 2428 and 9102 kg ha−1 of seed yield and biomass, respectively. Nutrients with greatest harvest index values were P (57%), N (50%), S (32%), and Mg (26%). Internal efficiency of N, P, and K, measured as slopes of seed yield regressions over nutrient uptake across all genotypes and locations were 16, 83, and 8 kg seed yield per kg N, P, and K uptake, respectively. These results describe temporal nutrient accumulation and partitioning in carinata and are critical to refine nutrient management strategies and guide fertilizer application decisions.}, journal={CROP SCIENCE}, author={Bashyal, Mahesh and Mulvaney, Michael J. and Crozier, Carl R. and Iboyi, Joseph E. and Perondi, Daniel and Post, Angela and Iskandar, Keola and Leon, Ramon G. and Landry, Gabriel M. and Wilson, Chris and et al.}, year={2023}, month={Feb} }
 @article{contreras_leon_post_everman_2022, title={Critical period of grass weed control in ALS-tolerant grain sorghum (Sorghum bicolor) is affected by planting date and environment}, volume={4}, ISSN={["2673-3218"]}, DOI={10.3389/fagro.2022.1014801}, abstractNote={Field experiments were conducted at two locations in North Carolina (Clayton and Rocky Mount) to determine the influence of row spacing and planting date on the critical period of weed control (CPWC) of grass weeds in ALS-tolerant grain. Grain sorghum was planted in May and June 2019, with either a 38 or 91 cm row spacing using an ALS-tolerant sorghum variety. Treatments consisted of “weedy” or “weed-free” plots up to 2, 3, 5, and 7 weeks after crop planting (WAP) and two control treatments of weedy and weed-free all season. Selection of grass weed species was achieved by controlling broadleaf weeds with a premix of bromoxynil plus pyrasulfutole at a rate of 264 g a.i. ha-1.Grass weeds were controlled using nicosulfuron at a rate of 69 g of a.i. ha-1. The CPWC was significantly different across locations. Row spacing and planting date factors did not influence the CPWC at Clayton. Planting date was a significant factor for the CPWC at Rocky Mount, however row spacing did not have any effect on the CPWC. Results for the CPWC are presented in terms growing degree days (GDD) from the date of crop sowing. The CPWC for grass weeds in grain sorghum at Clayton was from 368 to 849 GDD. The CPWC at Rocky Mount for May-planted grain sorghum was from 405 to 876 GDD, while the CPWC for June-planted grain sorghum ranged from 228 to 1042 GDD. These results demonstrate that cultural and environmental factors may influence the beginning, duration and end of the CPWC.}, journal={FRONTIERS IN AGRONOMY}, author={Contreras, Diego and Leon, Ramon G. and Post, Angela R. and Everman, Wesley J.}, year={2022}, month={Sep} }
 @article{ethridge_post_devkota_mulvaney_leon_2021, title={Characterization of carinata tolerance to select herbicides using field dose-response studies}, volume={35}, ISSN={["1550-2740"]}, url={https://doi.org/10.1017/wet.2021.57}, DOI={10.1017/wet.2021.57}, abstractNote={AbstractField experiments were conducted from 2017 to 2019 to determine the tolerance of carinata to several preemergence and postemergence herbicides. Preliminary screenings identified herbicides that caused large variation on carinata injury, indicating the potential for selectivity. Dose-response field studies were conducted to quantify the tolerance of carinata to select herbicides. Diuron applied preemergence at rates of 280 g ai ha−1 or higher reduced carinata population density 54% to 84% compared to the nontreated control. In certain locations, clomazone applied preemergence caused minor injury with an acceptable level of carinata tolerance and only doses above 105 g ai ha−1 caused yield reductions. Napropamide doses of 2,856 g ai ha−1 or higher applied preemergence caused at least 25% injury to carinata; however, the damage was not severe enough to reduce yields. Simazine applied postemergence at rates above 1,594 g ai ha−1 caused 50% or more injury, resulting in yield losses ranging from 0% to 95% depending on location. Clopyralid applied postemergence at 2,512 g ai ha−1 caused 25% injury with relative yield reductions, which varied across locations. The present study identified clomazone and napropamide applied preemergence, and clopyralid applied postemergence as potential herbicides for weed control in carinata. In contrast, diuron, simazine, metribuzin, imazethapyr, and chlorimuron caused high levels of carinata mortality and can be used to control volunteer carinata plants in rotational crops.}, number={6}, journal={WEED TECHNOLOGY}, publisher={Cambridge University Press (CUP)}, author={Ethridge, Sandra R. and Post, Angela and Devkota, Pratap and Mulvaney, Michael J. and Leon, Ramon G.}, year={2021}, month={Dec}, pages={957–966} }
 @article{cockson_veazie_davis_barajas_post_crozier_leon_patterson_whipker_2021, title={The Impacts of Micronutrient Fertility on the Mineral Uptake and Growth of Brassica carinata}, volume={11}, ISBN={2077-0472}, url={https://doi.org/10.3390/agriculture11030221}, DOI={10.3390/agriculture11030221}, abstractNote={Many abiotic factors impact the yield and growth of Brassica carinata (commonly referred to as carinata or Ethiopian mustard). Very little is known about carinata and how mineral nutrients impact its growth, and more specifically, the sufficiency values for fertility over the plant’s growth cycle and life stages. This study explored the impacts that plant nutrients, specifically micronutrients, can have on the growth and development of carinata over its distinct life stages (rosette, bolting, flowering, and pod set). Plants were grown under varying micronutrient concentrations (0, 25, 50, 75, 87.5, and 100%) of a modified Hoagland’s solution. Data were collected on plant height, canopy diameter, leaf tissue mineral nutrient concentrations, and biomass. The results demonstrated that micronutrient fertility has profound impacts on the production of Brassica carinata during different life stages. Boron (B) exclusion had the greatest impact on the growth and reproduction of Brassica carinata, with the death of the apical meristem that resulted in a lack of siliques or seeds at the lowest rate. Optimal relative elemental leaf tissue concentrations varied among micronutrient fertility concentrations and life stages. Certain elements exhibited linear increases in nutrient leaf tissue accumulation as solution concentration increased without reaching a maximum concentration during specific life stages. Other life stages and/or elements produced distinct plateau leaf tissue mineral concentrations despite increasing fertility treatment concentrations such as B in the rosette stage (47.2–50.0 mg·kg−1), copper (Cu) (bolting stage at 6.62–7.57 mg·kg−1), zinc (Zn) (bolting stage at 27.47–39.87 and flowering at 33.98–43.50 mg·kg−1), molybdenum (Mo) (flowering stage at 2.42–3.23 mg·kg−1), and manganese (Mn) (bolting stage at 117.03–161.63 mg·kg−1). This work demonstrates that Brassica carinata has different fertility demands and will accumulate differing leaf tissue concentrations during its life stages. This work serves as a baseline for further uptake and portioning work for Brassica carinata.}, number={3}, journal={AGRICULTURE-BASEL}, publisher={MDPI AG}, author={Cockson, Paul and Veazie, Patrick and Davis, Matthew and Barajas, Gabby and Post, Angela and Crozier, Carl R. and Leon, Ramon G. and Patterson, Robert and Whipker, Brian E.}, year={2021}, month={Mar}, pages={221} }
 @article{contreras gamero_2020, title={Critical Period of Grass Weed Control in Grain Sorghum (Sorghum bicolor) and Wheat (Triticum aestivum).}, url={https://www.lib.ncsu.edu/resolver/1840.20/37479}, author={Contreras Gamero, Diego Jose}, year={2020} }
 @article{cockson_2020, title={Exploration of Nutrient Needs of Brassica carinata and Other Brassica sp.}, url={https://www.lib.ncsu.edu/resolver/1840.20/38344}, author={Cockson, Paul}, year={2020} }
 @article{hare_jordan_leon_edmisten_post_cahoon_everman_mahoney_inman_2020, title={Influence of timing and intensity of weed management on crop yield and contribution to weed emergence in cotton the following year}, volume={6}, ISSN={["2374-3832"]}, url={https://doi.org/10.1002/cft2.20021}, DOI={10.1002/cft2.20021}, abstractNote={AbstractAdequate weed control is important in protecting crop yield and allowing efficient harvest in North Carolina. Data in the literature are limited with respect to direct comparisons of weed control and yield across multiple crops. Research is also limited in terms of documenting the impact of weed control in one crop on weed populations in the crop planted the following season. Experiments were conducted in North Carolina to determine weed control and yield of corn (Zea mays L.), cotton (Gossypium hirsutum L.), and soybean [Glycine max (L.) Merr.] in the same experiment when herbicides were applied postemergence at different timings (Year 1) and to determine how weed control translated into weed populations and cotton yield the following year (Year 2). Herbicides were applied 2 or 6 wk after planting (WAP); 2 and 4 WAP; 4 and 6 WAP; and 2, 4, and 6 WAP. At Lewiston‐Woodville, common ragweed (Ambrosia artemisiifolia L.) and Texas millet (Urochloa texana L.) were present. At Rocky Mount, Palmer amaranth (Amanthus palmeri S. Wats) and large crabgrass (Digitaria sanguinalis L.) were present. A single postemergence application of herbicide protected yield from weed interference in corn, whereas in most instances multiple herbicide applications were needed in cotton and to a degree in soybean. Weed densities in Year 2 in cotton were negatively correlated with weed control the previous year in corn, cotton, and soybean. Densities of common ragweed and Palmer amaranth 3 WAP in Year 2 were higher in cotton when the preceding crop was cotton or soybean rather than corn when herbicides were not applied; no difference was noted when comparing cotton and soybean. In some instances, sequential applications of herbicides resulted in lower weed densities the following year in cotton. These results demonstrate the importance of timely, sequential herbicide applications for weed control in cotton and soybean and in some instances the positive benefits on weed populations the following year in cotton.}, number={1}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, publisher={Wiley}, author={Hare, Andrew T. and Jordan, David L. and Leon, Ramon G. and Edmisten, Keith L. and Post, Angela R. and Cahoon, Charles W. and Everman, Wesley J. and Mahoney, Denis J. and Inman, Matthew D.}, year={2020} }
 @article{whelan_2020, title={Nitrogen Management of Barley for Malt Quality in the Mountains, Piedmont, Sandhills, and Coastal Plain areas of North Carolina.}, url={https://www.lib.ncsu.edu/resolver/1840.20/38072}, author={Whelan, Joshua}, year={2020} }
 @article{hare_jordan_edmisten_leon_post_vann_dunphy_heiniger_collins_washburn_2020, title={Response of agronomic crops to planting date and double-cropping with wheat}, volume={112}, ISSN={["1435-0645"]}, url={https://doi.org/10.1002/agj2.20164}, DOI={10.1002/agj2.20164}, abstractNote={AbstractPlanting date can affect crop yield and is an important management decision for practitioners. Although wheat (Triticum aestivum L.) and soybean [Glycine max (L.) Merr.] can be effectively double‐cropped in North Carolina, if commodity prices and projected economic returns are higher for crops other than soybean, growers might consider a nontraditional, double‐crop system. Direct comparisons of major agronomic crops with different planting dates or in a double‐crop system with wheat are limited in North Carolina. Therefore, research was conducted in North Carolina from 2013 through 2017 to determine yield potential of corn (Zea mays L.), cotton (Gossypium hirsutum L.), grain sorghum [Sorghum bicolor (L.) Moench], peanut (Arachis hypogaea L.), and soybean planted at two dates within the recommended planting window for full‐season production versus planting these crops after wheat harvest. The experimental design was a split plot, with summer crop serving as the whole plot unit and planting date within a crop serving as the subplot unit. Yield of corn, cotton, grain sorghum, peanut, and soybean in full‐season production exceeded that of double‐cropping with wheat in 5, 5, 2, 4, and 5 yr out of 5 yr of the study, respectively. Estimated economic returns were generated using the 10‐yr average (2008–2017) summer crop prices with the 10‐yr average wheat price. When considering all possible combinations of years and crops (n = 25), in only 20% of the possible combinations was the economic return of the double‐cropping system greater than economic return of full‐season crop production when compared with at least one of the planting dates within the traditional planting window.}, number={3}, journal={AGRONOMY JOURNAL}, publisher={Wiley}, author={Hare, Andrew T. and Jordan, David L. and Edmisten, Keith L. and Leon, Ramon G. and Post, Angela R. and Vann, Rachel and Dunphy, E. James and Heiniger, Ronnie and Collins, Guy and Washburn, Derek}, year={2020}, pages={1972–1980} }
 @article{thiessen_schappe_cochran_hicks_post_2020, title={Surveying for Potential Diseases and Abiotic Disorders of Industrial Hemp (Cannabis sativa) Production}, volume={21}, ISSN={["1535-1025"]}, DOI={10.1094/PHP-03-20-0017-RS}, abstractNote={ Industrial hemp (Cannabis sativa L.) has recently been reintroduced as an agricultural commodity in the United States, and, through state-led pilot programs, growers and researchers have been investigating production strategies. Diseases and disorders of industrial hemp in the United States are largely unknowns because record-keeping and taxonomy have improved dramatically in the last several decades. In 2016, North Carolina launched a pilot program to investigate industrial hemp, and diseases and abiotic disorders were surveyed in 2017 and 2018. Producers, consultants, and agricultural extension agents submitted samples to the North Carolina Department of Agriculture and Consumer Services Agronomic Services Division (n = 572) and the North Carolina Plant Disease and Insect Clinic (n = 117). Common field diseases found included Fusarium foliar and flower blights (Fusarium graminearum), Fusarium wilt (Fusarium oxysporum), and Helminthosporium leaf spot (Exserohilum rostratum). Greenhouse diseases were primarily caused by Pythium spp. and Botrytis cinerea. Common environmental disorders were attributed to excessive rainfall flooding roots and poor root development of transplanted clones. }, number={4}, journal={PLANT HEALTH PROGRESS}, author={Thiessen, Lindsey D. and Schappe, Tyler and Cochran, Sarah and Hicks, Kristin and Post, Angela R.}, year={2020}, pages={321–332} }
 @article{baucom_2019, title={Grain Yield and Quality Effects of a Late Spring Freeze on Soft Red Winter Wheat.}, url={http://www.lib.ncsu.edu/resolver/1840.20/36481}, author={Baucom, Andrew Lee}, year={2019} }
 @article{hare_jordan_leon_edmisten_post_mahoney_washburn_2019, title={Impact of Weed Management on Peanut Yield and Weed Populations the Following Year}, volume={46}, DOI={10.3146/ps19-9.1}, abstractNote={ABSTRACT
               Field studies were conducted in 2016 and 2017 at two locations in North Carolina to evaluate common ragweed (Ambrosia artemiisifolia L.) (Lewiston-Woodville) and Palmer amaranth (Amanthus palmeri S. Wats) control (Rocky Mount), peanut (Arachis hypogaea L.) yield, and estimated economic return when herbicides were applied postemergence (POST) at 2 or 6 weeks after planting (WAP); 2 and 4 WAP; 4 and 6 WAP; and 2, 4, and 6 WAP. During the following growing season, cotton (Gossypium hirsutum L.) was planted directly into the same plots to determine the impact of weed management during the previous season on weed density. In absence of herbicides, peanut yield was 880 and 1110 kg/ha at Lewiston-Woodville and Rocky Mount, respectively. When weed control depended on a single herbicide application, yield ranged from 1760 to 2660 kg/ha at Lewiston-Woodville, and 2080 to 2480 kg/ha at Rocky Mount. When herbicides were applied twice, peanut yield ranged from 2690 to 3280 kg/ha at Lewiston-Woodville and 3420 to 3840 kg/ha at Rocky Mount. The greatest yields were recorded when herbicides were applied two or three times. Applying herbicides increased the estimated economic return of peanut compared to the non-treated control (NTC). In cotton the following year, common ragweed populations at Lewiston-Woodville were greater following the NTC or a single herbicide application 2 WAP compared to more intensive herbicide programs. Palmer amaranth density at Rocky Mount the following year in cotton was not affected by weed management the previous year in peanut. These results illustrate the relative importance of timing and duration of weed management for peanut and how they influence weed emergence in the following cotton rotational crop.}, number={2}, journal={Peanut Science}, publisher={American Peanut Research and Education Society}, author={Hare, A.T. and Jordan, D.L. and Leon, R.G. and Edmisten, K.L. and Post, A.R. and Mahoney, D.J. and Washburn, D.}, year={2019}, month={Jul}, pages={182–190} }
 @article{farrow_sharma_jones_lofton_post_warren_2019, title={Residue Management Impacts on Winter Canola in the Southern Great Plains}, volume={5}, ISSN={["2374-3832"]}, DOI={10.2134/cftm2019.01.0007}, abstractNote={The integration of winter canola in the southern Great Plains has allowed producers to diversify their cropping systems by offering an alternative winter crop. Canola is proven to be beneficial at managing grassy weeds and improving yields compared with continuous wheat systems. However, winter canola has been known to be susceptible to harsh winter conditions in the Southern Great Plains. The greatest losses in systems growing winter canola are generally caused by cold or freeze induced damage. The objective of this study was to evalu - ate impact of different residue management strategies on survival and yield of winter canola in the southern Great Plains. The manage - ment treatments included no-till; vertical tillage at gang angle 0°, 3°, and 6°; harrowing; and prescribed burning. The effects of residue management strategies}, number={1}, journal={CROP FORAGE & TURFGRASS MANAGEMENT}, author={Farrow, Blake and Sharma, Sumit and Jones, John W. and Lofton, Josh and Post, A. and Warren, Jason G.}, year={2019}, month={Jul} }
 @article{overbaugh_2019, title={The Effect of Seeding Rate, Fertility and Cultivar on the Production of Industrial Hemp (Cannabis sativa L.) in North Carolina.}, url={http://www.lib.ncsu.edu/resolver/1840.20/36780}, author={Overbaugh, Ezekial}, year={2019} }
 @article{moody_2019, title={Varietal Response to Increasing Nitrogen Rates Compared to Sensor Based Rate in Soft Red Winter Wheat Using GreenSeekerTM Technology.}, url={http://www.lib.ncsu.edu/resolver/1840.20/37172}, author={Moody, Kaitlyn Danielle}, year={2019} }
 @article{paul e. berry_2009, title={Euphorbia virgata}, url={http://name.umdl.umich.edu/IC-HERB00IC-X-1334017%5DMICH-V-1334017}, author={Paul E. Berry, Dmitry Geltman}, year={2009} }