International Screening Results

A total of 519 lines were tested in Kenya against stem rust (Ug99 lineage pathotypes – TTKSK, TTKST, TTKTT, TTTTF and TTKTT+Sr8115B) and stripe rust (race PstS16).

A set comprising of 48 released Australian barley cultivars, and 861 (plus controls) breeding lines were screened at Toluca, Mexico for assessing barley stripe rust (BYR) resistance and susceptibility against Puccinia striiformis f. sp. hordei (Psh) race 24 (PshMEX-1). High quality phenotypic data was generated on these lines.

A set of 1735 barley lines (cultivars, breeding lines and research populations) were screened at Toluca, Mexico against stripe rust.

A set of 86 common wheat, 16 durum wheat and eight triticale cultivars was tested at Njoro, Kenya against Ug99 stem rust races. A set of 182 genotypes (breeding donors developed at PBI) carrying more than one resistance gene to stripe rust, leaf rust and stem rust was also screened. Ug99 stem rust resistant versions of different donor sources were identified.

A cohort of 1,479 barley lines (fixed genotypes/cultivars, breeding lines and research populations) was screened at Toluca, Mexico against barley stripe rust.

A set of 82 cultivars including 67 common wheats, 8 durum wheats and 7 triticales was tested against Ug99 lineage of the stem rust pathogen and stripe rust at Njoro, Kenya.

A set of 1,912 barley lines (Australian and international genotypes/cultivars, research populations and controls) was screened at Toluca, Mexico against barley stripe rust.

"A set of 90 entries comprising 71 common wheat cultivars, 11 durum wheat cultivars and eight triticale cultivars was tested against stem rust at Njoro, Kenya. Additionally, a set of 192 lines (Synthetics and international wheat germplasm) that showed good levels of resistance to prevalent Australian rust pathotypes was also tested at Njoro, Kenya."

A set of 1073 barley lines (cultivars and research populations) were screened at Toluca, Mexico against stripe rust.

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