Registration of ‘S14‐15146GT’ soybean, a high‐yielding RR1 cultivar with high oil content and broad disease resistance and adaptation

Abstract

S14‐15146GT (Reg. no. CV‐534, PI 691841) is a late‐maturity group IV (relative maturity 4.6) indeterminate glyphosate‐tolerant soybean [Glycine max (L.) Merr.] cultivar developed and released by the University of Missouri Fisher Delta Research Center Soybean Breeding program. High global demand for soybean oil and US southern growers’ preference for taller soybean plants with early maturity led to the release of this cultivar. S14‐15146GT was evaluated in 130 environments across 10 states and showed high yield potential and wide adaptation in Missouri and other southern states. It is resistant to Phytophthora root rot, stem canker, sudden death syndrome, frogeye leaf spot, and charcoal rot. S14‐15146GT has white flowers, tawny pubescence, and tan pod walls. Seeds of S14‐15146GT have black hilum, yellow cotyledon, and intermediate luster. S14‐15146 GT seed averages 235.5 and 390.8 g kg−1 oil and protein content, respectively. The early maturity with the first‐generation Roundup Ready trait, high yield potential, high oil content, broad disease resistance package, and wide adaptation make S14‐15146GT an excellent choice for southern growers.

Breeding for disease resistance in soybean: a global perspective

“…'Munasqa RR' carried superior resistance to M. phaseolina. In addition, the University of Missouri-Fisher Delta Research Center has released varieties showing superior resistance to charcoal rot (Chen et al 2020(Chen et al , 2021b. Based on field research studies conducted over the last several years, over 2,000 soybean genotypes have been screened for CR resistance, and of these genotypes, approximately 25 have been identified as having moderate resistance against charcoal rot (Mengistu et al 2007(Mengistu et al , 2011(Mengistu et al , 2013.…”

Differential responses of soybean genotypes to off‐target dicamba damage

“…Field trials were arranged horizontally from early‐maturing (row 1) to late‐maturing (row 60) genotypes. The Lee Farm has been exposed to prolonged off‐target dicamba damage since 2017, where non‐DT breeding lines often experience significant yield losses as compared with the DT commercial control cultivars (Chen et al., 2020, Chen, Shannon, Scaboo, Crisel, Smothers, Clubb, Selves, Vieira, Ali, Lee, et al., 2021; Chen, Shannon, Scaboo, Crisel, Smothers, Clubb, Selves, Vieira, Ali, Mitchum, et al., 2021). The 2019 trials were grown in four environments (FLD_51_2019, FLD_63_2019, FLD_82_2019, and FLD_87_2019).…”

Registration of ‘S16‐14801C’: A high‐yielding determinate maturity group V soybean cultivar with multiple disease resistance, salt tolerance, and broad adaptation

“…The PYTs and AYTs included tests only in Missouri, whereas the COOP consisted of tests in Arkansas, Louisiana, Missouri, Mississippi, Tennessee, and Virginia conducted in partnership with public institutions and private entities in each state. The COOP was designed to minimize uncontrolled data noise and inconsistency caused by off‐target dicamba (3,6‐dichloro‐2‐methoxybenzoic acid) exposure in southern Missouri and to increase the statistical power in identifying superior genotypes with desired yield stability and adaptability across multiple environments (Chen, Shannon, Scaboo, et al., 2020; Chen et al., 2021b, 2021c). Field plots consisted of four rows that were 3.66 m long and 0.76 m wide.…”