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Introgression of crown rust resistance from Festuca spp. into Lolium multiflorum by C. Oertel; F. Matzk is a Agricultural and Biological Sciences article available to read on EtoBox.

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## Abstract Crown rust, __Puccinia coronata__ Corda, causes one of the most damaging foliar diseases in Italian ryegrass, __Lolium multiflorum__ Lam. For introgression of crown rust resistance, highly resistant hybrids of the crosses __Festuca arundinacea__ (2n = 6x = 42) ×__L. multiflorum__ (2n = 4x = 28) and reciprocally, __L. multiflorum__ (2n = 2x = 14) ×__Festuca pratensis__ (2n = 4x = 28) and subsequently resistant recombinant individuals were used as female parents and susceptible cultivars of Italian ryegrass as male parents in three successive backcrosses. The BC~3~ plants were selfed and crossed mutually. Uredospores of seven different crown rust isolates collected from plants of __L. multiflorum, Lolium perenne, F. pratensis, F. arundinacea__ and __L. multiflorum × F. pratensis__ hybrids were applied to identify the resistance or susceptibility of the parental species, backcrossed, selfed and intercrossed progenies. The various crown rust populations revealed a species‐specific capability to infect plants of the __Lolium‐Festuca__ complex corresponding to the host species from which the spores originated. Selected BC^9^ plants, however, were found to be completely resist

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Author

C. Oertel; F. Matzk

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0179-9541)

Published

1999

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)