Resistance to Scald (Rhynchosporium secalis) in Barley (Hordeum vulgare) Studied by Near-Isogenic Lines: I. Markers and Differential Isolates.

ABSTRACT Near-isogenic lines (NILs) with resistance for scald in seventh generation backcross with 'Ingrid' as recurrent parent (RP) were tested with seven differential isolates of Rhynchosporium secalis in Norway and Canada. NILs of 'Turk', 'Brier', 'CI 8162', 'La Mesita', 'Hispont', 'Atlas 46', 'Modoc', 'Hudson', 'Abyssinian', 'Steudelli', and 'CI 2222' also were evaluated for field reactions. The genetic characterization of the NILs (degree of isogeneity with Ingrid) and with each other was carried out.

[A pair of spectacles to improve the information from the x-ray photograph and from the radioscopy on the television screen (author's transl)].

Here a pair of spectacles is introduced which, in screening the lateral incidence of light and in variably cross fading the risual point eliminates the contrast-diminishing intraocular proceeding stray light. It helps to achieve an improvement of the contrast by considering the x-ray photograph or television image. The result is that details are easier perceptible.