ORe3542M

Oat

Variety Description

Varieties used for comparison: 'AC Morgan' and 'CDC Dancer'

Summary: At booting, the flag leaf of 'ORe3542M' is longer than that of 'CDC Dancer'. At the green stage, 'ORe3542M' is earlier heading than 'AC Morgan'. The plants of 'ORe3542M' are shorter than the plants of 'AC Morgan'. The panicle of 'ORe3542M' is shorter than those of both reference varieties. The spikelet separation for 'ORe3542M' is semi-abscission whereas it is fracture for 'AC Morgan'. The shape of the scutellum tip is rounded on 'ORe3542M' whereas the tips are pointed on the reference varieties.

Description:

PLANT: spring hulled type, erect to semi-erect juvenile growth habit

STEM (AT MATURITY): yellow, medium thickness, medium density of pubescence above and below upper culm node

LOWER LEAF: very sparse to sparse pubescence on sheath and blade
LEAF: absent or very weak glaucosity at green stage, ligules present, medium green, absent to very sparse pubescence of margin
FLAG LEAF: medium to long, medium width, absent or very weak glaucosity

PANICLE: medium length, equilateral/symmetrical orientation, medium density, semi-erect to horizontal attitude of branches, 30 to 45 degree angle between dominant side branch and rachis
GLUME: medium length, medium width, yellow at maturity
SPIKELET: semi-abscission separation, semi-nodding, 2 grains
RACHILLA: short length between primary and secondary floret, medium length of grooves, glabrous
LEMMA: absent or very weak glaucosity, small extent of lateral overlap on palea, white at maturity, sparse to medium pubescence on lateral and dorsal surface, absent or very weak tendency to be awned

KERNEL: long, medium width, basal hairs absent, yellow
GROAT: dense pubescence, short to medium length of brush hairs
SCUTELLUM: rounded tip, medium size

AGRONOMIC CHARACTERISTICS: good resistance to lodging, good resistance to shattering
DISEASE REACTIONS: resistant to Black loose smut (Ustilago avenae) races A13, A60 and A617 and Crown rust (Puccinia coronata) races CR13, CR223, CR241, CR249, CR254, CR258 and CR259; moderately susceptible to Barley yellow dwarf virus; susceptible to Crown rust (Puccinia coronata) race BRBG-94 (CR257) and Stem rust (Puccinia graminis) races TGB, TGL and TJJ

Origin & Breeding History: 'ORe3542M' (experimental designations 309CM117 and OT6009) originated from a cross between 'Leggett' (female parent) and 'CDC Minstrel' (male parent) conducted in a controlled environment growth chamber at the Oat Advantage research farm near Saskatoon, Saskatchewan in December 2009. The F1 was grown from January to April 2010 with the F2 grown in bulk in a population plot during the 2010 growing season. Field selection in the F2 was based on plant type, disease resistance and grain quality. The F3 was increased in the growth chamber in the fall of 2010 as was the F4 in the winter into 2011. The F5 seed was sown at the Saskatoon site and further selected for plant type, agronomic qualities, disease resistance, yield and visual grain quality. Seed from a subset of F5 derived F6 selected plants were sent to New Zealand in the fall of 2011 for increase. In 2012, the top performing lines were tested in yield trials in western Canada. One line, OT6009, arose out of this testing and was entered into the Western Cooperative Oat Registration Trial in 2013 and 2014.

Tests & Trials: The comparative trials for 'ORe3542M' were conducted during the 2015 and 2016 growing seasons at the research plots of Oat Advantage near Saskatoon, Saskatchewan. A three replicate design was planted using plots measuring approximately 3 metres by 1 metre with 6 rows per plot spaced 20 cm between rows. Measured characteristics were based on 20 measurements per variety per year. Disease ratings were provided through the Western Cooperative Oat Registration Trials, Disease Evaluation Team Report 2013 to 2014.

Comparison tables for 'ORe3542M' with reference varieties 'AC Morgan' and 'CDC Dancer'

Flag leaf length (cm)

Days to heading (when 50% of panicles are fully emerged)

Plant height (including panicle) (cm)

Panicle length (cm)

Click on image for larger view

Oat: 'ORe3542M' (right) with reference variety 'CDC Dancer' (left)

Click on image for larger view

Oat: 'ORe3542M' (right) with reference variety 'AC Morgan' (left)