Breeding for resistance to Septoria tritici at CIMMYT (Record no. 3340)

000 -LEADER
fixed length control field 04448nam a22004337a 4500
001 - CONTROL NUMBER
control field 61666
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190802194059.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s ||||f| 0 p|p||0|| |
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number 968-6923-49-7
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 0# - LANGUAGE CODE
Language code of text/sound track or separate title En
043 ## - GEOGRAPHIC AREA CODE
Geographic area code MX
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
072 #0 - SUBJECT CATEGORY CODE
Subject category code H20
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.1194
Item number GIL
110 2# - MAIN ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 97
Personal name Ginkel, M. Van
245 00 - TITLE STATEMENT
Title Breeding for resistance to Septoria tritici at CIMMYT
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Mexico, DF (Mexico)
Name of publisher, distributor, etc. CIMMYT :
Date of publication, distribution, etc. 1995
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
520 ## - SUMMARY, ETC.
Summary, etc. CIMMYT's Bread Wheat Breeding Program has divided its target wheat area into 12 mega-environments. In some of these (ME2 and ME3), Septoria spp. are important. In regard to genetic variability on the side of the pathogen, it appears from global data analysis, that differences in aggressiveness are more apparent and important in farmers' fields, than clear differences in virulence. Thus rankings of wheat germplasm obtained, for example, in Toluca, Mexico, tend to hold up in other countries. The Bread Wheat Program emphasizes breeding for "durable" resistance. The horizontal kind of resistance to Septoria tritici is commonly found. Genetic variability for resistance is found, among others, in spring wheats from Latin America, and in winter wheat germplasm. The segregating populations are artificially inoculated with infected straw in Toluca. The modified pedigree/bulk method of selection is applied, and appears particularly effective, since resistance is considered to be based on several additive genes. Selection emphasizes low levels of disease on the upper foliage, bright yellow peduncle, plump seed, and high test weight plus yield. The segregating material is shuttled between Toluca and Cd. Obregon, Mexico, where selection for high yield potential is carried out. In addition to several sites in Mexico, the germplasm is also tested in global hot pots such as Ethiopia and Ecuador. New germplasm combining resistance with yield is listed.|E1 programa de mejoramiento de trigos harineros ha dividido sus areas clave para trigo en 12 mega- ambientes. En algunos de estos (MA2 y MA3) las especies de Septoria son importantes. Con respecto a la variabilidad genetica del patogeno, parece ser que, con base en un analisis global de datos, las diferencias en agresividad parecen ser mas aparentes e importantes al nivel de campos de agricultores, que diferencias claras en virulencia. Asi las evaluaciones de germoplasma de trigo obtenidas por ejemplo en Toluca, Mexico, tienden a sostenerse en otros paises. E1 programa de trigos harineros enfatiza el mejoramiento para "resistencia durable". E1 tipo de resistencia horizontal de Septoria tritici se encuentra comunmente. La variabilidad genetica para resistencia se encuentra, entre otros, en trigos de primavera de Latinoamerica, y en germoplasma de trigo de invierno. Las poblaciones segregantes son artificialmente inoculadas con paja infectada en Toluca. Se aplica el metodo de seleccion modificado linea pura/masal, y parece particularmente efectivo, ya que se considera que la resistencia esta basada en varios genes aditivos. Durante la seleccion se hace enfasis en bajos niveles de enfermedad sobre la parte superior del follaje, pedunculo de color amarillo brillante, semilla llena, y alto peso de mil granos mas rendimiento. E1 material segregante va alternativamente entre Toluca y Ciudad Obregon, Mexico. En el ultimo sitio el material es seleccionado por alto potencial de rendimiento. Ademas de varios sitios en Mexico, el material es evaluado en lugares de alta incidencia como Ethiopia y Ecuador. Se da una lista de germoplasma reciente que tiene la combinacion de alto rendimiento con resistencia.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation AGRIS 9602|R95PROCE
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Breeding methods
9 (RLIN) 1030
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Disease resistance
9 (RLIN) 1077
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Fungi
9 (RLIN) 1121
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Genetic variation
9 (RLIN) 1129
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Pathogenesis
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Resistance to injurious factors
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Septoria
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1295
Topical term or geographic name as entry element Triticum
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1203
Topical term or geographic name as entry element Plant breeding
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Gilchrist, L.|Ginkel, M. van|McNab, A.|Kema, G.H.J.
Relator term eds.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 661
Personal name Rajaram, S.
Relator term coaut.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not Lost     CIMMYT Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 633.1194 GIL I623519 2015-02-10 1 2015-02-10 Conference proceedings
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org