Juchi F2000, Náhuatl F2000 y Tlaxcala son variedades de trigo harinero recientemente liberadas para siembras temporal o secano en México. La roya la hoja del causada por Puccinia triticina E. afecta producción este cereal forma continua, lo que; el mejoramiento genético resistencia a esta enfermedad ha sido método más eficiente su control. Con fin determinar genética éstas se cruzaron con varie...

The objective of this study was to assess diversity for stem rust and stripe resistance in an international wheat screening nursery under greenhouse conditions using pathotypes with known avirulence/ virulence profiles. A set 95 entries collected from material generated by staff the International Maize Wheat Improvement Centre (CIMMYT) tested against seven Australian Pgt five Pst through artifi...

Leaf rust is amongst major biotic constraints of wheat (Triticum aestivum L.) having ability to cause substantial yield reductions worldwide. A continuous exploration for novel sources resistance pre-requisite its management. Objectives study were conduct evaluation 112 Pakistani landraces and 48 advanced lines/ cultivars at seedling stage with total 10 virulent pathotypes leaf rust, 3 from Pak...

Wheat leaf rust is an important disease worldwide. Growing resistant cultivars is an effective means to control the disease. In the present study, 244 recombinant inbred lines from Zhou 8425B/Chinese Spring cross were phenotyped for leaf rust severities during the 2011-2012, 2012-2013, 2013-2014, and 2014-2015 cropping seasons at Baoding, Hebei province, and 2012-2013 and 2013-2014 cropping sea...

ABSTRACT Canadian wheat cvs. Pasqua and AC Taber were examined genetically to determine the number and identity of stem rust resistance genes in both. The two cultivars were crossed with stem rust susceptible line RL6071, and sets of random F(6) lines were developed from each cross. The F(6) lines, parents, and tester lines with single stem rust resistance genes were grown in a field rust nurse...

Bu çalışmada 59 buğday (55 ekmeklik ve 4 makarnalık) genotipi sarı pas, kahverengi kara külleme fusarium başak yanıklığı hastalıklarına dayanıklılık genleri ile yüksek protein, gluten mukavemeti bin tane ağırlığı gibi kalite özellikleri ilgili allele özel 14 basit dizi tekrarları (SSR) primeri taranmıştır. Araştırma sonuçlarına göre, protein Gpc-B19 alleli (UHW89 primeri) genotipte, pas Lr34 (X...

ABSTRACT A total of 78 isolates of Puccinia triticina from durum wheat from Argentina, Chile, Ethiopia, France, Mexico, Spain and the United States and 10 representative isolates of P. triticina from common wheat from the United States were tested for virulence phenotypes on seedling plants of 35 near-isogenic lines of Thatcher wheat. Isolates with virulence on lines with leaf rust resistance g...

Leaf rust, caused by Puccinia recondita Rob. ex Desm., is a common disease in wheat. The objective of this study was to develop molecular markers associated with the quantitative trait loci (QTLs) putatively conferring durable leaf rust resistance in Triticum aestivum L. em. Thell. A population of 77 recombinant inbred lines (RILs) developed from 'Parula' (resistant) and 'Siete Cerros' (moderat...

A molecular-marker linkage map of hexaploid wheat (Triticum aestivum L. em. Thell) provides a framework for integration with teh classical genetic map and a record of the chromosomal rearrangements involved in the evolution of this crop species. We have constructed restriction fragment length polymorphism (RFLP) maps of the A-, B-, and D-genome chromosomes of homoeologous groups 4, 5, and 7 of ...