ND21008GT20

Soybean

Variety Description

Variety used for comparison: 'Mahony R2'

Summary: When the cotyledons are completely unfolded, the hypocotyl of 'ND21008GT20' has a very weak intensity of anthocyanin colouration while the hypocotyl of 'Mahony R2' has a medium to strong intensity of anthocyanin colouration. When 50% of the flowers are open, the lateral leaflet of 'ND21008GT20' is rounded ovate while that of 'Mahony R2' is pointed ovate. At maturity, the hilum on the seed of 'ND21008GT20' is grey while that of 'Mahony R2' is black. The plants of 'ND21008GT20' mature later than those of 'Mahony R2'.

Description:

HYPOCOTYL: very weak intensity of anthocyanin colouration

PLANT: oilseed type, indeterminate growth type, light tawny pubescence on middle third of main stem, begins flowering mid-season, matures late in the season

LEAF: rounded ovate lateral leaflet

FLOWER: violet

POD: medium brown
SEED: spherical flattened, yellow ground colour of testa
HILUM: grey, funicle same colour as testa

Origin & Breeding History: 'ND21008GT20' (experimental designation ND14-6120GT) was developed using a single seed descent breeding technique. The variety was developed using five crosses. Two initial crosses were conducted, the first between the variety 'Barnes' and a line designated SD1091RR and a second between the varieties 'Surge' and 'Resnik RR'. The resulting progeny of these two crosses were then crossed to produce one parental line. A cross between the variety 'Duel' and the line RG607RR resulted in the second parental line. The final cross between the 2 parental lines was conducted in North Dakota, USA in 2011. The variety was advanced from the F1 to the F4 generation in North Dakota with one F4:5 line being designated ND14-6120GT in 2014. Breeder seed was established using F8:F9 purification rows in North Dakota in 2018.

Tests & Trials: The comparative trials of 'ND21008GT20' were conducted near Oak Bluff, Manitoba during the 2021 and 2022 growing seasons. The trial was arranged in a RCB design with four replicates per variety. Each plot consisted of 7 rows with a 1.5 metre, centre to centre spacing between plots and each row measuring 6.2 metres long. The seeding density of 54 seeds per metre squared resulted in 500 plants per variety per year. Measured characteristics were based on 20 measurements per variety per year.

Comparison table for 'ND21008GT20' with reference variety 'Mahony R2'

Days to maturity (days from planting to when 95% of pods are ripe)

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Soybean: 'ND21008GT20' (right) with reference variety 'Mahony R2' (left)