Abstract
‘UA 5715GT’ (Reg. No. CV‐529, PI 688605) soybean [Glycine max (L.) Merr.] cultivar was developed by the University of Arkansas Agricultural Experiment Station and was released as a late maturity group (MG) V high‐yielding glyphosate‐tolerant cultivar in 2015. UA 5715GT is an F5 single plant selection from the cross between ‘Lonoke’ and ‘Hutcheson‐RR’. The parent Hutcheson‐RR is the Roundup Ready version of the cultivar Hutcheson, which carries the GTS 40‐3‐2 transgene from Monsanto Co. In extensive field trials, UA 5715GT has shown good adaptation and performance in Arkansas and other southern states. In the Arkansas yield trials over 7 yr in 28 environments, UA 5715GT yielded 4053 kg ha−1, on average, compared with the mean yield of 4322 kg ha−1 for the MG V checks, and it contains 395 g kg−1 protein and 220 g kg−1 oil on seed dry weight. In the 2014 Uniform Test for MG V, it yielded 3524 kg ha−1 compared with MG V checks that yielded 3878 kg ha−1. Plants of UA 5715GT are on average 81 cm tall, with high resistance to lodging and shattering. UA 5715GT is also resistant to stem canker and frogeye leaf spot. UA 5715GT is not subjected to utility patents either for the herbicide transgene or the cultivar itself. This, in addition to its high yield potential, makes UA 5715GT a suitable alternative for farmers who want to grow and save seeds of glyphosate‐tolerant soybean cultivars.
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