Sadash

Wheat

Variety Description

Varieties used for comparison: 'AC Andrew', 'Bhishaj' and 'AC Reed'

Summary: 'Sadash' has a intermediate juvenile growth habit while it is semi-erect in 'AC Reed'. The flag leaf of 'Sadash' is slightly shorter and narrower than 'AC Andrew' but longer and wider than 'AC Reed'. 'Sadash' has a drooping flag leaf attitude while it is upright in 'AC Andrew'. The margin of the flag leaf auricle of 'Sadash' has stronger pubescence than 'Bhishaj' and 'AC Reed'. 'Sadash' heads earlier than 'AC Andrew' but later than 'AC Reed'. 'Sadash' matures slightly later than 'AC Reed'. The plant height of 'Sadash' is slightly taller than 'AC Reed'. 'Sadash' has a weak to medium waxiness of the upper internode of the culm while it is absent to weak for 'Bhishaj' and 'AC Reed'. The margins of the rachis of 'Sadash' have weaker pubescence than 'AC Andrew' and 'AC Reed'. 'Sadash' has awns that are more spreading than 'AC Reed'. The convex surface of the apical rachis of 'Sadash' has sparser hairiness than 'Bhishaj'. 'Sadash' has more of a sloping shape of the shoulder of the lower glume than 'Bhishaj'. The shoulder width of the lower glume of 'Sadash' is narrower than 'Bhishaj'. 'Sadash' has a straighter lemma beak shape than 'Bhishaj' and 'AC Reed'. 'Sadash' has a greater thousand kernel weight than 'AC Reed'. The shape of the germ of 'Sadash' is round while it is more oval in the reference varieties. 'Sadash' has better resistance to Loose smut (Ustilago tritici) than 'AC Andrew' and 'AC Reed' and better Leaf rust (Puccinia recondita) and Stem rust (Puccinia graminis f. sp. tritici) resistance than 'AC Reed'.

Description:

PLANT: soft white spring type, medium tillering capacity, semi-erect to intermediate growth habit at the 5-9 tiller stage

SEEDLING: no anthocyanin colouration of the coleoptile, intermediate juvenile growth habit, glabrous lower leaf sheaths and leaf blades, dark green lower leaf blade colour

FLAG LEAF: dark green, glabrous leaf blade and leaf sheath, weak waxiness of lower side of blade, strong to very strong waxy bloom of the leaf sheath, drooping attitude, absent or very weak anthocyanin colouration of the auricles, slight to medium pubescence of the auricle margins

STEM: straight culm/neck at maturity, weak to medium waxiness of upper internode, glabrous upper internode, medium pubescence of the rachis margin, no anthocyanin colouration at maturity, hollow pith in cross-section, white at maturity

SPIKE: tapering shape, erect attitude at maturity, medium density, medium length, medium waxy bloom, white at maturity, awned, awns shorter than spike length, awns white at maturity, awn attitude spreading, no supernumary spikelets, absent or very sparse hairiness of convex surface of apical rachis segment
LOWER GLUME: medium length and width, glabrous, sloping shape of the shoulder, very narrow shoulder width, slightly curved medium length beak, medium internal imprint, sparse internal hairs, creamy-white chaff colour at maturity
LEMMA: straight beak
KERNEL: soft white type, white colour, medium to large size, medium length, medium to wide width, oval shape, rounded to slightly angular cheek shape, midlong brush hairs, medium size brush, small to midsize round germ, midwide to wide crease, mid-deep crease, fawn to light brown colour to phenol reaction

AGRONOMICS: good resistance to shattering

QUALITY: good pastry and biscuit quality

DISEASE REACTION: susceptible to Tan spot (Pyrenophora tritici-repentis) and Fusarium head blight (Fusrium graminearum, Fusarium species), moderately susceptible to Black point and Smudge (Cochliobolus sativus, Alternaria species, Pseudomonas syringae pv. atrofaciens), moderately resistant to moderately susceptible to Leaf rust (Puccinia recondita), moderately resistant to Loose smut (Ustilago tritici), resistant to moderately resistant to Powdery mildew (Erysiphe graminis f. sp. tritici) and Stem rust (Puccinia graminis f. sp. tritici) and resistant to Stripe rust (Puccinia striiformis)

Origin & Breeding History: 'Sadash' (experimental designation SWS349) was developed from the cross SWS207 / SWS208 // SWS214 made at the AAFC Lethbridge Research Centre, Lethbridge, Alberta in 1997. Following selection of F2 heads from a spaced-plant bulk plot grown in Vauxhall, Alberta, and subsequent culling of selections based on KVD, degree of kernel whiteness and black point infection, a composite of the selections was grown as an F3 bulk in New Zealand in 1998/1999. Further selection was done at the F3 to F5 generations based on plant type, height, straw strength, maturity, shattering resistance, freedom from black point, degree of kernel whiteness and KVD. An F4 bulk from head selections made within the F3 bulks was grown in Vauxhall in 2000. Sixty F5 head rows derived from this bulk plot were grown in New Zealand during 1999/2000, with selected rows harvested individually. Pre-registration agronomic trials as well as evaluation of disease resistance and end-use quality took place from 2000 to 2002. SWS349 was initially entered in the Western Soft White Spring Wheat Cooperation Registration trial in 2003 with subsequent evaluations continuing in 2004 and 2005.

Tests & Trials: Trials were conducted during the summers of 2006 and 2007 in Lethbridge, Alberta. Plots consisted of 4 rows with a row spacing of 23 cm and a row length of 3 meters. There were 4 reps in 2006 and 6 reps in 2007 arranged in an RCB design.

Comparison tables for 'Sadash' with reference varieties 'AC Andrew', 'Bhishaj' and 'AC Reed'

Flag leaf length (cm)

Flag leaf width (mm)

Days to heading

Days to maturity

Plant height (at maturity)(excluding awns) (cm)