MARC details
| 000 -LEADER |
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| fixed length control field |
02566nam a22003737a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G66314 |
| 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 |
20211006071921.0 |
| 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 |
970-648-001-3 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
Q03 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.1194 |
| Item number |
DUV |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Bergstrom, G.C. |
| Affiliation |
Helminthosporium Blights of Wheat: Spot Blotch and Tan Spot. Proceedings of an International Workshop; El Batan, Texcoco (Mexico); 9 - 14 Feb 1997 |
| 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) |
| 245 00 - TITLE STATEMENT |
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| Title |
Seed pathology of tan spot |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
Mexico, DF (Mexico) |
| Name of publisher, distributor, etc. |
CIMMYT|UCL|BADC : |
| Date of publication, distribution, etc. |
1998 |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Pyrenophora tritici-repentis is a common component of the internal flora of wheat seed. A model of seed infection and transmission of P. tritici- repentis was developed based primarily on research with soft white winter wheat. Spores of the pathogen germinate on the wheat floret. The fungus initially colonizes the surfaces of the lemma, palea, or glume, and reaches the seed via mycelial proliferation. Penetration of the kernel pericarp is direct via appressoria. The pathogen ramifies throughout the pericarp, where it remains viable for at least three years. Maximal seed infection results from spike inoculation at kernel milk stage. In naturally infected wheat seeds, P. tritici-repentis is found throughout the pericarp but seldom in the seed coat or embryo. Seed transmission occurs in a non-systemic manner. The emerging coleoptile is externally infected by hyphal growth from the infected pericarp, and the first and second seedling leaves may be infected by external hyphal growth from the coleoptile. Transmission efficiency varies with seed lot and ranges from 0 to 92%. Factors affecting seed transmission are not well understood; they include soil temperature and may also include age of seed, wheat cultivar, developmental stage when seed infection occurred, and soil moisture during emergence. Infected seed may provide inoculum for tan spot epidemics and for dispersal of fungal strains to new geographic locations. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 591 ## - CATALOGING NOTES |
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| Affiliation |
9806|AGRIS 9802 |
| 595 ## - COLLECTION |
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| Collection |
CIMMYT Publications Collection |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Pathogens |
| 9 (RLIN) |
1197 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Pyrenophora |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Seed pathology |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Spores |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Spots |
| 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 |
Wheat |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1310 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Duveiller, E.|Dubin, H.J.|Reeves, J.|McNab, A. |
| Relator term |
eds. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Schilder, A.M.C., |
| Relator term |
coaut. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Conference proceedings |