|Previously Proposed Denomination:||'TR05102'|
|Botanical Name:||Hordeum vulgare|
University of Saskatchewan
Crop Development Centre
4D36 Agriculture Building, 51 Campus Drive
Brian Rossnagel, University of Saskatchewan, Saskatoon, Saskatchewan
|Protective direction granted:||2008-04-17|
|Protective direction withdrawn:||2008-05-07|
|Grant of Rights Date:||2010-08-17|
|Grant of Rights Termination Date:||2028-08-17|
Varieties used for comparison: 'CDC Kendall' and 'AC Metcalfe'
Summary: 'CDC Landis' has a higher frequency of plants with recurved flag leaves than either 'CDC Kendall' or 'AC Metcalfe'. The flag leaf of 'CDC Landis' is longer than 'CDC Kendall' The intensity of anthocyanin colouration of flag leaf auricles of 'CDC Landis' is strong while it is medium in 'AC Metcalfe'. 'CDC Landis' has a medium anthocyanin colouration of the nerves of the lemma of the kernel while it is very weak to weak in 'CDC Kendall'. The spiculation of the inner lateral nerves of the dorsal side of the kernel lemma of 'CDC Landis' is weak to medium while it is strong in 'CDC Kendall'.
PLANT: two row, spring malting barley, mainly semi-erect juvenile growth habit, absent or very sparse pubescence on the sheaths of the lower leaves
FLAG LEAF: medium to high frequency of plants with recurved flag leafs, medium to dense pubescence on blade
FLAG LEAF SHEATH: strong to very strong glaucosity, sparse pubescence
AURICLES: strong anthocyanin colouration, very sparse to sparse pubescence on the margins
SPIKE: mid-season to late spike emergence, v-shape to platform shaped collar, medium to strong anthocyanin colouration of the tips of the lemma awns, semi-erect attitude, strong glaucosity, parallel shape, medium to dense density, divergent attitude of sterile spikelet, the length of the glume and its awn of the median spikelet is equal relative to the grain
FIRST SEGMENT OF RACHIS: medium length, medium curvature
LEMMA AWNS: longer relative to the spike, rough spiculations from the tip to next to the kernel
KERNEL: medium anthocyanin colouration of nerves of the lemma at beginning of ripening, whitish aleurone layer, husk present, long rachilla hair, weak to medium spiculation of inner lateral nerves of dorsal side of lemma, no hairiness on ventral furrow, clasping disposition of lodicules, mainly incomplete horseshoe shape of basal markings, medium to long length, medium to wide width
DISEASE REACTION: very susceptible to Septoria Speckled Leaf Blotch (Septoria passerinii), Barley Yellow Dwarf Virus (BYDV), Scald (Rhynchosporium secalis) and True Loose Smut (Ustilago nuda), susceptible to Common Root Rot (Cochliobolus sativus, Fusarium spp.), moderately susceptible to Spot Blotch (Cochliobolus sativus), Net Blotch (Pyrenophora teres) and Stem Rust (Puccinia graminis), moderately resistant to Fusarium Head Blight (Fusarium graminearum; perfect state Gibberella zeae), Covered Smut (Ustilago hordei) and False Loose Smut, Black Semi-Loose Smut (Ustilago nigra)
AGRONOMY: good resistance to lodging, good resistance to shattering, good tolerance to straw breakage, fair to good tolerance to drought, good malting quality
Origin & Breeding History: 'CDC Landis' (experimental designations 'SM03003' and 'TR05102') was developed by the barley breeding program at the Crop Development Centre (CDC), University of Saskatchewan, Saskatoon, Saskatchewan using a pedigree breeding system. It originates from the cross SM99310 / SM99391 made at the CDC in 2000. SM99310 is a CDC two row breeding line that originated from the cross BM9007-7 / SM94387. SM99391 is a CDC two row breeding line that originated from the cross TR573 / SM94314. The F1 and F2 generations were grown as bulk populations with the F1 grown in a winter nurseries in New Zealand. The F3 and F4 generations were grown as single seed derived lines during the winter of 2000 and 2001. 'CDC Landis' was then grown and selected in the field as a F5 row plot at Saskatoon in 2002. The seed from the F5 row plot was bulked as the line 'SM03003'. It was tested in the CDC yield trials in 2003 and 2004, followed by further testing in the Western Canadian Two-row Cooperative Trials as 'TR05102' during 2005 and 2006. Selection criteria included high yield potential, good straw strength, good kernel quality including test weight, kernel weight and grain plumpness, acceptable malting profile and resistance to net-blotch and stem rust.
Tests & Trials: Tests and trials were conducted during the summers of 2008 and 2009 at the University of Saskatchewan, Saskatoon, Saskatchewan. Plots consisted of 5 rows with a row spacing of 0.2 meters and a row length of 3.66 meters. There were 2 replicates arranged in a RCB Design. Measured characteristics were based on a minimum of 20 measurements per variety per year.
Comparison table for 'CDC Landis' with reference varieties 'CDC Kendall' and 'AC Metcalfe'
Flag leaf length (cm)
|'CDC Landis'||'CDC Kendall'||'AC Metcalfe'|
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