DURABIL TY OF RESISTANCE TO LEAF RUST DISEASE ( Puccinia recondite F, Sp. tritici) IN A NUMBER OF WHEAT MONOGENIC LINES | ||||
| Journal of Plant Production | ||||
| Article 6, Volume 29, Issue 4, April 2004, Page 1737-1742 PDF (360.82 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238599 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| M. M. El· Shamy, | ||||
| Wheat Diseases Res. Dept., Plant Pathol. Res. InstiL, A.R.C., Giza, Egypt | ||||
| Abstract | ||||
| Thilly one le.?1 rust monogenic lines ot wheal (Lr's) were evaluated lor ine« rp.Slstance under B rtir:cial field condilion I r 4 years ( 2000 - 2003 ) at GemmaizJ Rc 'ie;!(C!) S~rHlon. The tested L r genes w ere varied greatly in disease s everity but remained constant over the four years. They divided inlO lour groups based on tnelr raactlons . Genes Lr 9, Lr18, Lr19, Lr 21, Lr 38, Lr 42 and Lr 43 were highly resistant. l.r za. Lr 2ll, Lr 20, Lr 25. LJ 28, Lr 3.(). Lr 34, Lr 36 and Lr 39 showed a moderate resistance response with a verage c oenrclcnt 0 f InfecUon (ACI) values less than 10 and !ow values 01 area under disease proqrcss CUNa (AUDPC) . Genes Lrl 1, Lr 12 , l r 13, l.I27, LJ32 and Lr3J showed lower sus cptible responses, while the other ksled Lr genes, Lr 1, Lr 2c, Lr3. Lr 3bg, Lr 3Xd, Lr 10, tr 14a and Lr14b were hIghly s sccpuble. T c rest, ts showed highly positive valuer of Pt,::son corrcianon coefficient (r,) bct.veen :ht:' four years oara with <In Clvcrngr. 8.818 rBI10ed f(t;r,", II COO 10 0.987. OI~(:rlSti severity ( OS) and are] under ti;:\I''lse proqress curve (AU .PC) were highly corrcl: ted and seemed 10 be good estimators lor msistancc: , | ||||
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