S26-F9

Soybean

Variety Description

Variety used for comparison: 'S25-D3'

Summary: 'S26-F9' has no anthocyanin colouration of the hypocotyl while 'S25-D3' does. The leaf of 'S26-F9' is a lighter green than 'S25-D3'. 'S26-F9' has a white flower colour while it is purple in 'S25-D3'. 'S26-F9' flowers earlier than 'S25-D3'. The pod colour of 'S26-F9' is brown while it is tan in 'S25-D3'. 'S26-F9' has duller and smaller sized seed than 'S25-D3'. 'S26-F9' is resistant to cyst nematode races 3 & 14 while 'S25-D3' is susceptible.

Description:

HYPOCOTYL: no anthocyanin colouration

PLANT: oilseed type, indeterminate growth type, erect growth habit, grey pubescence on middle third of stem

LEAF: medium green, pointed ovate lateral leaflet

FLOWER: white

POD: brown colour
SEED: spherical rounded, medium size, shiny lustre, yellow ground colour of testa, yellow hilum colour, yellow colour of hilum funicle, medium sized hilum, normal abscission layer

MATURITY: group II, 3150 heat unit rating

DISEASE RESISTANCE: resistant to cyst nematode (Heterodera glycines) races 3 & 14

AGRONOMY: good resistance to shattering and lodging

QUALITY: 41.3 % protein, 21.7% oil

Origin & Breeding History: 'S26-F9' was developed from the cross 29988 / 37635 made in Arva, Ontario in the summer of 2001. Generations F1-F2 were grown in a winter nursery in Kekaha, Hawaii in the fall of 2001-2002. The F3 was grown in Arva, Ontario in the summer of 2002. The F4 generation were grown in a winter nursery in 2002-2003. The F5 generation was grown in Arva, Ontario in the summer of 2003 where single plants were selected that fall. The progeny of these plants were grown in a single replicate trial in Arva, Ontario in the summer of 2004. One of these lines was identified as 04DL186179 and was selected based on superior agronomic traits and seed with yellow hila and retained for further testing. 04DL186179 was subsequently tested in multiple environments in Ontario and the USA until 2005-2006.

Tests & Trials: Tests and trials were conducted in Arva, Ontario during the years 2007-2009. Plots consisted of 2 rows with a row length of 4 metres and row spacing of 75 cm. There were two replicates.

Comparison tables for 'S26-F9' with reference variety 'S25-D3'

Days to flowering (planting to 50% of plants showing one or more flowers)

Seeds weight (grams per 100 seed)

Days to maturity

Click on image for larger view

Soybean: 'S26-F9' (left) with reference variety 'S25-D3' (right)