caa a22 4500 477135242 CHVBK 20180405111715.0 cr unu---uuuuu 170330e19970701xx s 000 0 eng 10.1023/A:1002916110347 doi (NATIONALLICENCE)springer-10.1023/A:1002916110347 Broers L.H.M. Centro Internacional de Mejoramiento de Maiz Y Trigo (CIMMYT), Lisboa 27, Col. Juarez, Deleg. Cuauhtemoc, Apdo Postal 6-641, 06600, Mexico D.F., Mexico aut Components of quantitative resistance to yellow rust in ten spring bread wheat cultivars and their relations with field assessments [Elektronische Daten] [L.H.M. Broers] Latency period, infection frequency, lesion length, lesion growth, disease severity and percentage of infected leaf parts were assessed on 10-day-old seedling leaves and flag leaves of ten bread wheat (Triticum aestivum L.) cultivars after inoculation with urediospores of Puccinia striiformis Westend. f. sp. tritici. For all components significant genotypic differences were detected. Components of resistance tended to be associated. A long latency period was associated with a low infection frequency, small lesions, a low disease severity and a low percentage of infected leaf parts. The latency period, measured as time period until first pustule appearance (LP1), was highly correlated with the latency period measured as time period until 50% of the pustules appeared (LP50). Assessment of latency period of large numbers of cultivars could therefore be reliably done by measuring LP1 which is less time consuming than measuring LP50. Latency period, infection frequency and disease severity were highly correlated with disease development data from field experiments. These results suggest that selection in the greenhouse for one of these components should result in cultivars with high levels of quantitative resistance. Disease severity after uniform inoculation in the greenhouse can be used for monocyclic evaluations because it is the easiest to assess. Kluwer Academic Publishers, 1997 Puccinia striiformis nationallicence Triticum aestivum nationallicence association of components nationallicence stripe rust nationallicence durable resistance nationallicence infection frequency nationallicence latency period nationallicence wheat nationallicence Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 215-223 0014-2336 96:2<215 1997 96 10681 https://doi.org/10.1023/A:1002916110347 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002916110347 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Broers L.H.M. Centro Internacional de Mejoramiento de Maiz Y Trigo (CIMMYT), Lisboa 27, Col. Juarez, Deleg. Cuauhtemoc, Apdo Postal 6-641, 06600, Mexico D.F., Mexico aut NATIONALLICENCE 773 0- Euphytica Kluwer Academic Publishers 96/2(1997-07-01), 215-223 0014-2336 96:2<215 1997 96 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer