R19‐42848 (Reg. no. GP‐532, PI 706865) is a high‐yielding soybean [ Glycine max (L.) Merr.] germplasm with drought tolerance released by the University of Arkansas System – Division of Agriculture Research & Extension Center in 2024. It is an F 4 ‐derived selection from the cross R12‐2237 (drought‐tolerant) × R12‐519 (high‐yielding). R19‐42848 is a conventional (non‐genetically modified) soybean with a relative maturity of 5.2. Plants have determinate growth habit with purple flower color, gray pubescence, and tan pod wall at maturity. Seed of R19‐42848 has buff hilum color, 100‐seed weight of 13.8 g, and contains on average 404.5 and 211.5 g kg −1 of protein and oil on a dry basis, respectively. R19‐42848 showed high‐yielding and broad adaptability across 28 environments in Arkansas and three other states during the 4 years of yield trials under irrigated conditions (4275 kg ha −1 , 91.4% of the checks’ mean). Additionally, it demonstrated high yield and slow canopy wilting in rainfed conditions across 14 environments over 3 years (2489 kg ha −1 , 96.2% of the checks’ mean). Under irrigated conditions, R19‐42848 yielded numerically higher than drought‐tolerant check Ellis (105.2%), while statistically similar in rainfed conditions (99.9%). Therefore, R19‐42848 is a valuable genetic resource for public and private soybean breeding programs attempting to incorporate drought‐tolerant alleles into their breeding pipeline.

‘R19C‐1012’ (Reg. no. CV‐564, PI 707837) is a high‐yielding, conventional maturity group Mid‐IV (Relative maturity 4.6) soybean [ Glycine max (L.) Merr.] cultivar with improved flooding tolerance at V2–V4 vegetative growth stages. It was developed and released by the University of Arkansas System–Division of Agriculture Research & Extension Center in 2024. R19C‐1012 has an indeterminate growth habit, purple flowers, gray pubescence, brown pods, and seed with an imperfect black hilum. From 2019 to 2023, R19C‐1012 was evaluated across 40 irrigated environments, with an average grain yield of 4302 kg ha −1 , representing 93% and 99% relative yield of the Xtend and non‐Xtend checks, respectively. Under flooding conditions at V2–V4 vegetative growth stages, R19C‐1012 outperformed the checks with a relative yield advantage of +158%. In irrigated conditions, seed of R19C‐1012 contains 397 g kg −1 and 219.4 g kg −1 of protein and oil content on a dry weight basis, respectively, and weigh 12.3 g 100 seeds −1 . It has resistance to brown stem rot (caused by Phialophora gregata ) and stem canker (caused by Diaporthe phaseolorum var. aspalathi ) and has tolerance to sulfonylurea herbicides. R19C‐1012 provides Mid‐South US growers with resilience and flexibility in their cropping systems by mitigating yield losses under flooding conditions, while also offering seed cost savings. This is particularly beneficial in flood‐prone areas destined for crop rotation systems with rice ( Oryza sativa ). As a non‐GMO soybean cultivar, it presents opportunities for high‐value markets with premium prices. Furthermore, R19C‐1012 is a valuable genetic resource for soybean breeding programs focused on improving flooding tolerance.

R16-45 (Reg. no. GP-526, PI 704118) is a high-yielding soybean [Glycine max (L.) Merr.] breeding line with flood tolerance at early reproductive stages released as germplasm by the Arkansas Agricultural Experiment Station in 2023. It is an F2 selection from the cross between the flood-tolerant breeding line R07-6669 and the high-yielding Arkansas cultivar 'UA 5612'. R16-45 is a conventional (non-genetically modified) soybean with a relative maturity of 5.6. Plants have determinate growth habit, white flower color, and buff hilum color. It has gray pubescence, tan pod wall at maturity, and yellow cotyledons with a dull yellow seed coat. R16-45 showed high yield potential and broad adaptability across 17 environments in Arkansas and other southern states, with an average of 4145 kg ha-1 (95.3% of the checks' mean). Six years of field evaluations for flooding tolerance showed that R16-45 is consistently tolerant to 8-to-10-day flooding stress at the R1/R2 growth stages (average flood damage score of 3.6, compared with 6.0 from the reference checks). In addition, R16-45 is resistant to stem canker. Given substantial yield losses associated with flooding stress and stem canker, R16-45 is a valuable germplasm source for public and private soybean breeding programs attempting to incorporate novel genetic diversity into their breeding pipeline. R16-45 is a new conventional MG 5.6 determinate soybean germplasm.R16-45 has flood tolerance at R1/R2 growth stages.R16-45 has broad adaptation and high yield potential.

Flooding stress is a growing threat to global soybean [Glycine max (L.) Merr.] production as the frequency and intensity of extreme precipitations are increasing due to climate change. Soybean is highly sensitive to flooding and substantial yield losses are observed due to a cascade of negative physiological responses induced by hypoxia. Hence, there is a pressing need for the development of flood-tolerant genotypes. This study evaluated the grain yield and seed protein and oil content of 31 soybean genotypes over 2 years under both non-flooding and flooding conditions, where flooding entailed a 4-day partial water submergence during the early reproductive growth stages R1/R2. Mixed-effects linear models were utilized to assess the impact of flood damage scores (FDSs, 1-4 scale) on observed phenotypes, as well as differences in observed phenotypes between tolerant, moderate, and susceptible genotypes across flooding and non-flooding treatments. No significant impact of FDS was observed for seed protein and oil content. In addition, no significant differences in these phenotypes were observed between flooding and non-flooding treatments across the various genotype categories. On average, for each unit increase in FDS, grain yield decreased by 432.7 kg ha-1 (17.4%). Tolerant genotypes experienced roughly 33% yield losses between flooding and non-flooding treatments, while moderate and susceptible genotypes experienced 44% and 51% yield losses, respectively. The advancements in genomics and phenomics are promising for the identification and incorporation of novel flood-tolerant alleles through plant breeding, potentially mitigating flooding-induced yield losses across diverse environmental conditions.

R18-14147 (Reg. no. GP-528, PI 705143) is a high-protein conventional soybean [Glycine max (L.) Merr.] germplasm of maturity group Mid-IV developed and released by the University of Arkansas System - Division of Agriculture Research & Extension in 2023. The germplasm is an F3:4 selection from the cross LG10-3671-1 x R09-430. Plants of R18-14147 have an indeterminate growth habit with purple flowers, gray pubescence, brown pod wall, and imperfect black hilum. Across 28 environments in Arkansas (2019-2022), R18-14147 yield averaged 4482 kg ha-1, with broad adaptability and yield stability. Seed of R18-14147 contains on average 429 g kg-1 and 191 g kg-1 of protein and oil on a dry weight basis, respectively, and seed weight is 15.2 g 100 seeds-1. The average seed protein content of this line is 8%-27% higher than the average protein content of the check cultivars used in various trials to evaluate R18-14147. Additionally, R18-14147 has been identified as resistant to stem canker. R18-14147 presents soybean growers in the mid-southern United States with a promising germplasm alternative combining high yield potential and elevated seed protein content for alternative crop rotation in herbicide-tolerant cultivar systems, offering potentially seed-saving cost benefits and serving as a valuable germplasm for new cultivar development. R18-14147 is a high-protein soybean genotype that can support the growing market for plant-based protein. R18-14147 is a non-GMO genotype with improved economically important traits that can maximize profit for growers. R18-14147 is a well-adapted germplasm that can be important in pre-breeding activities.

Cercospora leaf blight (CLB), caused by Cercospora cf. flagellaris, C. kikuchii, and C. cf. sigesbeckiae, is a significant soybean [Glycine max (L.) Merr.] disease in regions with hot and humid conditions causing yield loss in the United States and Canada. There is limited information regarding resistant soybean cultivars, and there have been marginal efforts to identify the genomic regions underlying resistance to CLB. A Genome-Wide Association Study was conducted using a diverse panel of 460 soybean accessions from maturity groups III to VII to identify the genomic regions associated to the CLB disease. These accessions were evaluated for CLB in different regions of the southeastern United States over 3 years. In total, the study identified 99 Single Nucleotide Polymorphism (SNPs) associated with the disease severity and 85 SNPs associated with disease incidence. Across multiple environments, 47 disease severity SNPs and 23 incidence SNPs were common. Candidate genes within 10 kb of these SNPs were involved in biotic and abiotic stress pathways. This information will contribute to the development of resistant soybean germplasm. Further research is warranted to study the effect of pyramiding desirable genomic regions and investigate the role of identified genes in soybean CLB resistance.

The recent surge in the plant-based protein market has resulted in high demands for soybean genotypes with improved grain yield, seed protein and oil content, and essential amino acids (EAAs). Given the quantitative nature of these traits, complex interactions among seed components, as well as between seed components and environmental factors and management practices, add complexity to the development of desired genotypes. In this study, the across-environment seed protein stability of 449 genetically diverse plant introductions was assessed, revealing that genotypes may display varying sensitivities to such environmental stimuli. The EAAs valine, phenylalanine, and threonine showed the highest variable importance toward the variation in stability, while both seed protein and oil contents were among the explanatory variables with the lowest importance. In addition, 56 single nucleotide polymorphism (SNP) markers were significantly associated with various seed components. Despite the strong phenotypic Pearson's correlation observed among most seed components, many independent genomic regions associated with one or few seed components were identified. These findings provide insights for improving the seed concentration of specific EAAs and reducing the negative correlation between seed protein and oil contents.

Abstract Breeding for increased protein without a reduction in oil content in soybeans [Glycine max (L.) Merr.] is a challenge for soybean breeders but an expected goal. Many efforts have been made to develop new soybean varieties with high yield in combination with desirable protein and/or oil traits. An elite line, R05‐1415, was reported to be high yielding, high protein, and low oil. Several significant quantitative trait loci (QTL) for protein and oil were reported in this line, but many of them were unstable across environments or genetic backgrounds. Thus, a new study under multiple field environments using the Infinium BARCSoySNP6K BeadChips was conducted to detect and confirm stable genomic loci for these traits. Genetic analyses consistently detected a single major genomic locus conveying these two traits with remarkably high phenotypic variation explained (R2), varying between 24.2% and 43.5%. This new genomic locus is located between 25.0 and 26.7 Mb, distant from the previously reported QTL and did not overlap with other commonly reported QTL and the recently cloned gene Glyma.20G085100. Homolog analysis indicated that this QTL did not result from the paracentric chromosome inversion with an adjacent genomic fragment that harbors the reported QTL. The pleiotropic effect of this QTL could be a challenge for improving protein and oil simultaneously; however, a further study of four candidate genes with significant expressions in the seed developmental stages coupled with haplotype analysis may be able to pinpoint causative genes. The functionality and roles of these genes can be determined and characterized, which lay a solid foundation for the improvement of protein and oil content in soybeans.

The sucrose and Alanine (Ala) content in edamame beans significantly impacts the sweetness flavor of edamame-derived products as an important attribute to consumers’ acceptance. Unlike grain-type soybeans, edamame beans are harvested as fresh beans at the R6 to R7 growth stages when beans are filled 80-90% of the pod capacity. The genetic basis of sucrose and Ala contents in fresh edamame beans may differ from those in dry seeds. To date, there is no report on the genetic basis of sucrose and Ala contents in the edamame beans. In this study, a genome-wide association study was conducted to identify single nucleotide polymorphisms (SNPs) related to sucrose and Ala levels in edamame beans using an association mapping panel of 189 edamame accessions genotyped with a SoySNP50K BeadChip. A total of 43 and 25 SNPs was associated with sucrose content and Ala content in the edamame beans, respectively. Four genes (Glyma.10g270800, Glyma.08g137500, Glyma.10g268500, and Glyma.18g193600) with known effects on the process of sucrose biosynthesis and 37 novel sucrose-related genes were characterized. Three genes (Gm17g070500, Glyma.14g201100 and Glyma.18g269600) with likely relevant effects in regulating Ala content and 22 novel Ala-related genes were identified. In addition, by summarizing the phenotypic data of edamame beans from three locations in two years, three PI accessions (PI 532469, PI 243551, and PI 407748) were selected as the high sucrose and high Ala parental lines for the perspective breeding of sweet edamame varieties. Thus, the beneficial alleles, candidate genes, and selected PI accessions identified in this study will be fundamental to develop edamame varieties with improved consumers’ acceptance, and eventually promote edamame production as a specialty crop in the United States.

'S16-11644C' (Reg. no. CV-556, PI 700010) is a semi-determinate maturity group IV non-genetically modified (GM) soybean cultivar developed and released by the University of Missouri-Fisher Delta Research, Extension, and Education Center to fulfill the growing market demands and consumers' preference for non-GM soybean cultivars. S16-11644C was tested in a total of 82 environments across 11 southern states from 2017 to 2020. It demonstrated high yield potential and broad adaptability compared with commercial and public check cultivars. S16-11644C is resistant to soybean cyst nematode races 2 (HG Type 1.2.5.7), 3 (HG Type 5.7), and 5 (HG Type 2.5.7); southern root-knot nematode; peanut root-knot nematode; and charcoal rot and is a salt excluder. Seed of S16-11644C average 410 and 224 g kg(-1) of seed protein and oil content on a dry weight basis, respectively, and 48.2% of meal protein content at 13% moisture level. Due to its high-yielding genetic background with a desired early maturity, broad adaptability, disease resistance, and absence of GM events, S16-11644C offers a unique package for soybean growers across the U.S. mid-southern states to maximize profits through premium prices of non-GM soybean cultivars in the niche markets and the flexibility of harvest and saving seeds for the next crop seasons.

Field experiments are subjected to spatial variability due to factors such as soil moisture, fertility, pH, and structure, as well as the pressure of diseases and pests. Soybean yields are highly variable across fields. Controlling spatial variability could decrease the risk of erroneous inferences in breeding trials. This study aims at evaluating the spatial variability of furrow-irrigated soybean for seed yield, wilting, and maturity under four different irrigation levels. The field experiment was conducted in four environmzents (location-year combination). A total of 165 soybean lines of similar relative maturity (maturity group 5) along with commercial checks were planted in an augmented strip plot design. Irrigation treatment decisions were triggered using an atmometer based on a threshold at a designated growth stage. Data were analyzed via Analysis of Variance as a linear mixed model using a blocking structure (block model) and spatial covariances using range and column. Two different spatial models were used: exponential and Gaussian. Results showed that the spatial models displayed better data fitting (lower AIC and/or BIC) than the block model in each different irrigation level across different environments and traits. Indeed, genotype ranking for seed yield was different between the block model and the best spatial model, suggesting that spatial adjustment may be necessary for soybean breeding operations under furrow irrigation. Further validation in a breeding yield trial demonstrated similar results of the effectiveness in terms of AIC and/or BIC of the spatial model compared to the block model for soybean seed yield.

R14-1422 (Reg. no. GP-523, PI 702562) is a mid-maturity group (MG) V (relative maturity 5.4), determinate growth habit, high-yielding, conventional soybean [Glycine max (L.) Merr.] germplasm line developed and released in 2021 by the Arkansas Agricultural Experiment Station. R14-1422 is an F-4 selection from the cross between 'R06-4433', a cultivar released by Arkansas, and the Missouri cultivar 'S05-11482'. Trial results of over 74 environments in Arkansas and other southern states showed that R14-1422 is well adapted and provides high-yielding performance. R14-1422 is a MG V (5.4), line with determinate growth habit, white flowers, gray pubescence, and a tan pod wall at maturity. Seed of R14-1422 has yellow cotyledon, yellow seed coat, and buff hilum color. R14-1422 has high yield potential and moderate resistance to southern root-knot nematode and is a chloride excluder.

'S17-2243C' (Reg. no. CV-557, PI 700003) is a semi-determinate, maturity group IV (relative maturity 4.9), non-genetically modified (non-GM) soybean [Glycine max (L.) Merr.] cultivar developed and released by the University of Missouri-Fisher Delta Research, Extension, and Education Center. S17-2243C was developed to meet the growing demands for new non-GM soybean cultivars with high yield and elevated seed oil content. S17-2243C is resistant to stem canker and charcoal rot and has tolerance to salinity conditions. Seed of S17-2243C has averaged 232 g kg(-1) of oil concentration on a dry weight basis, which was significantly higher than all check cultivars in the 2020 USDA Uniform Soybean Tests, Southern States. S17-2243C was tested against high-yielding private and public soybean cultivars from 2018 to 2021 in 80 locations across 12 states, including Alabama, Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, Ohio, South Carolina, Tennessee, and Virginia. With high yield potential, broad adaptability, early maturity, elevated seed oil content, and non-GM traits, S17-2243C is an excellent cultivar choice for soybean growers adopting alternative growing systems and benefiting from premium prices offered for non-GM soybean products.

'S16-5503GT' (Reg. no. CV-555, PI 700002) is a semi-determinate, late-maturity group IV (relative maturity, 4.8), glyphosate-tolerant, high-yielding soybean [Glycine max (L.) Merr.] cultivar developed and released in 2021 by the University of Missouri-Fisher Delta Research, Extension, and Education Center (MU-FDREEC) soybean breeding program. Southern U.S. growers' preference for high-yielding, early-maturing cultivars with glyphosate tolerance and broad disease resistance motivated the development of S16-5503GT soybean. It was evaluated in a total of 92 environments across 12 U.S. mid-southern states from 2017 to 2021 for yield and agronomic traits. Across all testing environments, S16-5503GT yielded 4,258 kg ha(-1), which was equivalent to 108% of the non-Xtend check mean and 102% of the Xtend check mean, ranking in the top 19% overall. In the 2021 Southern State Variety Trials, S16-5503GT yielded 4,455 kg ha(-1) and ranked in the top 43% overall. S16-5503GT is resistant to soybean cyst nematode races 3 (HG type 5.7) and 5 (HG type 2.5.7) and moderately resistant to race 2 (HG type 1.2.5.7). It is also resistant to southern root-knot nematode, reniform nematode, frogeye leaf spot, charcoal rot, and brown stem rot and is tolerant to extreme salinity conditions. The broad disease resistance package combined with high-yielding performance and wide adaptability across multiple mid-southern states make S16-5503GT an excellent cultivar choice for soybean growers in the southern United States, where late-maturity group IV varieties are in demand.

The demand for non-genetically modified soybean [Glycine max (L.) Merr.] cultivars has steadily increased in the last decade due to changes in consumers' preferences and the growth of specialty niche markets. To meet this growing demand, the University of Missouri-Fisher Delta Research, Extension, and Education Center soybean breeding program has developed and released 'S16-14801C' (Reg. no. CV-553, PI 699901). It is a high-yielding determinate maturity group 5 early (relative maturity 5.0) conventional soybean cultivar with resistance to multiple diseases, including soybean cyst nematode races 2 (HG type 1.2.5.7) and 5 (HG Type 2.5.7), southern root-knot nematode, reniform nematode, stem canker, and salt tolerance. S16-14801C was tested in a total of 111 environments across 12 states from 2017 to 2021, outyielding the commercial checks (on average) of similar maturity in 75 environments. Given its high-yielding performance, multiple disease resistance package, and wide adaptability, S16-14801C represents a good cultivar choice for soybean growers across the U.S. southern states, especially for crop systems targeting premium contracts associated with specialty markets.

'S16-11651C' (Reg. no. CV-549, PI 699631) is an early maturity group (MG) V, semi-determinate, conventional, high-yielding soybean [Glycine max (L) Merr.] cultivar developed and released in 2020 by the University of Missouri-Fisher Delta Research Center Soybean Breeding Program. High global demand for soybean oil and animal feed and U.S. mid-southern growers' interest in early-MG V conventional cultivars with high yield potential, desired protein and oil content, and broad disease resistance motivated the development and release of S16-11651C soybean. S16-11651C was tested in 94 environments in Missouri and 11 other mid-southern states from 2017 to 2020 for yield and other agronomic traits. On average, S16-11651C yielded 4,327 kg ha(-1), which is 292 kg ha(-1) higher than the all-tests mean of 4,035 kg ha(-1). S16-11651C seed contains 413 (41.3%) and 220 (22%) g kg(-1) of protein and oil, respectively, on a dry weight basis. S16-11651C exhibits relative maturity of 5.3 and has white flowers, tawny pubescence, and tan pod walls. The seed is yellow with intermediate luster and black hila with a weight of 13.5 g 100(-1) seed. S16-11561C is 88 cm tall on average with resistance to lodging. It is resistant to cyst nematode (races 1, 2, and 5 with moderate resistance to race 3), peanut and southern root-knot nematode, reniform nematode, brown stem rot, charcoal rot, and purple seed stain and moderately resistant to Phomopsis seed decay. S16-11561C has the capacity to exclude chloride. In addition to its high yield potential, high seed protein and oil content, and early maturity, S16-11561C has exhibited broad adaptation across mid-southern states.

Increasing market demand for sustainable, environmentally friendly edible film materials has called for the development of new customizable production methods utilizing emerging technologies such as 3D printing. We hereby report a new method to generate functional edible soy protein isolate films prepared from three types of soybeans (AR-R11-7999, MO-S17-17168, and MO-S17-19874R) using an innovative 3D printing technology. The protein contents in AR-R11-7999, MO-S17-17168, and MO-S17-19874R soybean meals and their corresponding protein isolates were 40.0, 39.1, and 39.9; and 84.5, 84.7, and 87.3 % (w/w, dry basis), respectively. Response surface methodology was used to maximize the tensile and puncture strength and minimize the thickness of the 3D-printed edible films using protein concentration, plasticizer concentration (glycerol), and drying time as the independent variables. The optimized film production conditions were determined as soy protein concentration: 8.91%, plasticizer concentration: 3.00%, and drying time: 3.98 h with a desirability value of 0.7428. The optimized conditions were then successfully verified with the original soybean lot with a nonsignificant difference in physical properties. At the optimized conditions, the 3D-printed edible films using three soybean lots revealed: 0.108-0.114 mm thickness; 14.79-16.07 MPa tensile strength; 6.97-8.20 N puncture strength; 90.81-91.53, -1.89 to -1.31, and 14.85-17.25 were color parameters L*, a*, and b*, respectively; 1.22-1.36 g/cm3 density; and 104.4-105.7% elongation at break ratio (%). PRACTICAL APPLICATION: Edible soy protein films produced by an extrusion-based 3D printing approach are highly customizable and precise, and could be produced at an industrial scale. This newly produced environment-friendly soy protein-based edible film can serve as an alternate packaging to synthetic plastics and reduce the environmental landfill problem while adding value to soybean produced in the mid-south United States.

With the rise of novel specialty markets and changes in consumers' preferences, the demand for high-yielding, non-genetically modified (non-GM) soybean [Glycine max (L.) Merr.] cultivars has been steadily increasing over the last decade. Interest from growers in non-GM soybean cultivars has also increased because they may benefit from premium prices, reduced seed costs, and flexible farming systems. To meet this growing demand, the University of Missouri-Fisher Delta Research, Extension, and Education Center soybean breeding team has developed and released 'S16-15170C' (Reg. no. CV-550, PI 699900), a high-yielding conventional soybean cultivar with multiple disease resistance and broad adaptation to the Southern states. S16-15170C has an indeterminate growth habit and white flowers, gray pubescence, and tan pod wall color. This soybean cultivar has been extensively tested across 12 states from 2017 to 2020 and has outyielded commercial checks in 48 out of 78 environments, with the average yield being 102.7% of checks overall. S16-15170C is resistant to soybean cyst nematode, stem canker, frogeye leaf spot, sudden death syndrome, brown stem rot, and phytophthora root rot. The combination of high yielding potential, broad adaptability, and multiple disease resistance in a non-GM genetic background makes S16-15170C a suitable soybean cultivar choice for growers adopting an alternative farming system and maximizing potential returns during the season.

Phosphorus (P) is a major contaminant in many wastewater sources and has gained interest due to the role P has in eutrophication of receiving waters. Recycling P from wastewater as the mineral struvite (MgNH4PO4 center dot 6H(2)O) could be a promising option to reduce P discharge into receiving waters and could potentially provide an alternative fertilizer-P source for crop production. The objective of this study was to evaluate the effects of two struvite materials (i.e., electrochemically precipitated struvite [ECST] and chemically precipitated struvite [CPST]) relative to several other common fertilizer-P sources (i.e., triple super phosphate [TSP], monoammonium phosphate [MAP], diammonium phosphate [DAP], and rock phosphate [RP]) on the response of a pureline rice (Oryza sativa L.) cultivar grown under flood-irrigation in a P-deficient, silt-loam soil (Typic Glossaqualfs) in eastern Arkansas. In 2019, rice grain yield did not differ (P > .05) among fertilizer-P sources, whereas in 2020, rice grain yield was greater from TSP (13.1 Mg ha(-1)) than that from ESCT (11.0 Mg ha(-1)) or CPST (12.7 Mg ha(-1)). Rice aboveground dry matter, aboveground and belowground tissue and grain P and N concentrations, aboveground and grain tissue P uptake, and aboveground tissue N concentration from ECST and CPST did not differ (P > .05) from those from TSP, MAP, DAP, RP, or an unamended control. The similarities in rice responses compared with other commonly used, commercially available fertilizer-P sources suggest that struvite materials have the potential to be an alternative fertilizer-P source option for flood-irrigated rice production.

Given the magnitude of production losses caused by biotic and abiotic stressors in soybean [Glycine max (L.) Merr.], breeding programs have devoted great efforts to developing high-yielding soybean cultivars with enhanced genetic resistance to multiple biotic and abiotic stressors. In this context, the University of Missouri-Fisher Delta Research, Extension, and Education Center developed and released the soybean cultivar 'S16-3747GT' (Reg. no. CV-552, PI 700001). It is a determinate maturity group 5 early (relative maturity 5.0) Roundup Ready 2 (glyphosate-tolerant) soybean that combines high-yielding potential with resistance to soybean cyst nematode, southern root-knot nematode, stem canker, and Phytophthora root rot and with tolerance to salt stress. S16-3747GT was evaluated in 155 environments across 13 states from 2017 to 2020 and yielded numerically and/or significantly higher than the commercial checks' average in 9 of 13 states in the southern United States. The broad adaptability and competitiveness across multiple states combined with resistance to biotic and abiotic stressors make S16-3747GT a compelling cultivar choice for growers in this region as well as an option for public and private soybean breeding programs to incorporate this genetic background into their breeding pipeline.