MARC details
| 000 -LEADER |
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| fixed length control field |
04425nam a22004337a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G61666 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20240919021048.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
121211s ||||f| 0 p|p||0|| | |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER |
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| International Standard Book Number |
968-6923-49-7 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 0# - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
En |
| 043 ## - GEOGRAPHIC AREA CODE |
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| Geographic area code |
MX |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
F30 |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
H20 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.1194 |
| Item number |
GIL |
| 110 2# - MAIN ENTRY--CORPORATE NAME |
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| 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 |
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| 9 (RLIN) |
97 |
| Personal name |
Ginkel, M. Van |
| 245 00 - TITLE STATEMENT |
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| Title |
Breeding for resistance to Septoria tritici at CIMMYT |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
Mexico, DF (Mexico) |
| Name of publisher, distributor, etc. |
CIMMYT : |
| Date of publication, distribution, etc. |
1995 |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
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| 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 |
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| Language note |
English |
| 591 ## - CATALOGING NOTES |
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| Affiliation |
AGRIS 9602|R95PROCE |
| 595 ## - COLLECTION |
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| Collection |
CIMMYT Publications Collection |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Breeding methods |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1030 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Disease resistance |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1077 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Fungi |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1121 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Genetic variation |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1129 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Pathogenesis |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Resistance to injurious factors |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Septoria |
| 653 0# - INDEX TERM--UNCONTROLLED |
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| Uncontrolled term |
CIMMYT |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Triticum |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1295 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Plant breeding |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1203 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Gilchrist, L.|Ginkel, M. van|McNab, A.|Kema, G.H.J. |
| Relator term |
eds. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
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| 9 (RLIN) |
661 |
| Personal name |
Rajaram, S. |
| Relator term |
coaut. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Koha item type |
Conference proceedings |