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Partial resistance to Erysiphe graminis hordei in old European barley varieties


, : Partial resistance to Erysiphe graminis hordei in old European barley varieties. Euphytica 34(2): 499-507

A collection of 133 genotypes consisting mainly of old European barleys and land varieties was assessed for level of partial resistance to barley mildew at the adult plant stage. Identification of any known resistance factors conferring hypersensitive reactions to the mildew races present at various frequencies in N. W. Europe was ensured through seedling tests with an appropriate AO mildew isolate. Thirty-nine varieties with relatively high levels of adult (partial) resistance and lacking known race-specific resistance genes were tested over a period of three years in field disease nurseries. At least thirteen varieties showed significantly less percentage leaf area infected than the control variety Proctor. These constitute a useful reserve of non-hypersensitive resistance, probably under the control of genes with mainly additive effects. In combination, these genes give enhanced levels of resistance, which could be of a more stable nature.

US$19.90

DOI: 10.1007/bf00022947


Other references

Clark, E., 1941: Revision of the genus Euastacus (Crayfishes, Family Parastacidae), with notes on the distribution of certain species. MemMus. Melbourne: 7-30

Graca, M.E.C.; Zanon, A.; Valio, I.F.M.; Cooper, M.A., 1986: Influence of growth regulators and fertilizer treatment on the flowering and growth of Eucalyptus dunnii. Flowering in 5-yr-old trees grown in Parana, Brazil, was unaffected by stem injections of 350 mg/litre gibberellic acid (GA), 50 mg/litre kinetin, 300 mg/litre GA plus 50 mg/litre kinetin, 240 mg/litre Ethrel (2-chloroethyl phosphonic acid [etheph...

Friedman, R.; Tappen, R.M., 1991: The effect of planned walking on communication in Alzheimer's disease. One of the effects of Alzheimer's disease is a diminution in the ability to communicate. A randomized, non-blinded two-group experimental study was undertaken to determine if planned walking has the capacity to improve the communication perfo...

Tohya T.; Miyazaki K.; Katabuchi H.; Fujisaki S.; Maeyama M., 1986: Small cell carcinoma of the endometrium associated with adenosquamous carcinoma a light and electron microscopic study. This report describes a 64-year-old woman with a primary small cell carcinoma of the endometrium associated with adenosquamous carcinoma. The light microscopic features resembled those of small cell carcinoma of the lung and those of the uterine c...

Jensen, C.M.; Jensen, C.H.; Paerregaard, A., 1991: A diagnostic problem in tuberculous dactylitis. We report a case of tuberculous dactylitis. This rare manifestation of extra-pulmonary tuberculosis must be kept in mind in the diagnosis of a slowly-growing bone tumour. The diagnostic problems and pitfalls are discussed.

Pizam, A.; Jeong GangHoan, 1996: Cross-cultural tourist behavior: perceptions of Korean tour-guides. The aim of the study was to test whether nationality influences tourist behaviour, and more specifically, to determine whether 'nationality culture' has a greater impact on tourist behaviour than 'touristic culture'. Eighty-six...

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Koo, Y.; Malik, R.; Alvarez, N.; Shanov, V.N.; Schulz, M.; Sankar, J.; Yun, Y., 2015: Free-standing carbon nanotube-titania photoactive sheets. We report on the development of a new photoactive material via titania (TiO2) nanoparticle deposition on free-standing aligned carbon nanotube (CNT) sheets. Controlling homogeneous dispersion of negatively charged TiO2 nanoparticles, achieved by a...

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