Adult plant leaf rust (Puccinia recondita tririci) resistance of known Lr genes against three virulence variants of race 77 from Indian sub-continent


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Authors

  • R G SAINI
  • LIVINDER KAUR
  • MANDEEP KAUR

Keywords:

biotype, bread wheat, wild relatives, durable resistance

Abstract

The seedling and adult plant response of known leaf rust resistance genes Lr1 through Lr45 was studied against
virulence variants 77-1, 77-2 and 77-5 of race 77. The lines having alien genes Lr9, Lr18, Lr19, Lr24, Lr25, Lr28,
Lr29, Lr32, Lr41, Lr42 and Lr45 showed hypersensitive seedling resistance against these variants. Therefore, the adult
plants from lines with these genes remained highly resistant in field tests also. The gene Lr30 was the only source of such
resistance from Triticum aestivum L. emend. Fiori & Paol. The field grown adult plants of lines with the genes Lr2a,
Lr3ka, Lr14b, Lr21. Lr22a, Lr33, Lr34,b35, Lr37, Lr38, Lr43 and Lr44. showed moderate to high degree of partial
resistance. The adult plants from Hnes with the genes Lr1, Lr2h, Lr2c, Lr2d, Lr3(Do), Lr3(Bg), Lr1O, Lr11, Lr13,
Lr14a, Lr15, Lr16, Lr17, Lr20, Lr22b, Lr23, Lr27, Lr31, and Lr36. were susceptible to one or more of the variants
77-1, 77-2 and 77-5 in field tests.

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Author Biographies

  • R G SAINI
    National Fellow ,Punjab Agricultural University, Ludhiana 141 004

  • LIVINDER KAUR
    Assistant Plant Pathologist, Punjab Agricultural University, Ludhiana 141 004


  • MANDEEP KAUR
    Assistant Geneticist, Department of Genetics, Punjab Agricultural University, Ludhiana 141 004


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Issue

Vol. 68 No. 12 (1998)

Section

Articles

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How to Cite

SAINI, R. G., KAUR, L., & KAUR, M. (2013). Adult plant leaf rust (Puccinia recondita tririci) resistance of known Lr genes against three virulence variants of race 77 from Indian sub-continent. The Indian Journal of Agricultural Sciences, 68(12). https://epubs.icar.org.in/index.php/IJAgS/article/view/27830