MARC details
| 000 -LEADER |
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| fixed length control field |
03675nam a22004337a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G65844 |
| 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 |
20240919021050.0 |
| 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 |
968-6923-93-4 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 072 #0 - SUBJECT CATEGORY CODE |
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| Subject category code |
F30 |
| 072 #0 - SUBJECT CATEGORY CODE |
|---|
| Subject category code |
F60*H50 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
|---|
| Classification number |
633.153 |
| Item number |
EDM |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Vasal, S.K. |
| Affiliation |
Developing Drought- and Low N-Tolerant Maize. Proceedings of a Symposium; El Batan, Tex. (Mexico); 25- 29 Mar 1996 |
| 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 |
Choices among breeding procedures and strategies for developing stress tolerant maize germplasm |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Mexico, DF (Mexico) |
| Name of publisher, distributor, etc. |
CIMMYT : |
| Date of publication, distribution, etc. |
1997 |
| 340 ## - PHYSICAL MEDIUM |
|---|
| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Abiotic stresses, particularly those related to water and nitrogen, are widely distributed and may occur at practically all stages of crop growth. Improvement efforts through breeding are rather limited for such traits, and perhaps only international agricultural research centers, the larger private seed companies, and a few strong national programs have the necessary resources and manpower to pursue such research efficiently. In the absence of major genes, the breeding of such traits is difficult, and requires some skill in managing selection environments. Variation for stress traits has been observed in maize populations under improvement by recurrent selection, as well as among inbred lines and hybrids derived from those populations. recurrent selection procedures for improving stress tolerance characteristics have been successfully demonstrated. Choices among various kinds of breeding procedures appropriate at different stages of the improvement process are outlined, with the appropriate time to switch from one procedure to another indicated. The merits and drawbacks of procedures involving testers in intensifying such traits are discussed. The usefulness of selecting for hybrid-oriented features in stress-tolerant populations is emphasized, as tolerance to inbreeding is itself a valuable source of general stress tolerance. The integration of selection for stress tolerance traits in the on-going improvement process is emphasized. Relative efficiency and cost-effectiveness of recurrent selection procedures are compared with evaluating elite germplasm (particularly inbreds). Results to date suggest that alleles related to stress tolerance are present in most elite maize populations (and hence in any group of inbred lines) at a relatively low frequency, and that controlled stress environments play a key part in their identification. Efficient inbred line development procedures will be indicated, and alternate strategies involving inbreeding at high plant density will be suggested to improve secondary traits known to increase stress tolerance. Finally, cost- effective procedures and strategies most appropriate for breeders operating in developing countries are emphasized. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 591 ## - CATALOGING NOTES |
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| Affiliation |
9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798 |
| 595 ## - COLLECTION |
|---|
| Collection |
CIMMYT Publications Collection |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Breeding methods |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1030 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Drought resistance |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1081 |
| Topical term or geographic name as entry element |
Drought stress |
| Miscellaneous information |
AGROVOC |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Germplasm |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1136 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Recurrent selection |
| 653 0# - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
CIMMYT |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1314 |
| Topical term or geographic name as entry element |
Zea mays |
| Miscellaneous information |
AGROVOC |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1151 |
| Topical term or geographic name as entry element |
Hybrids |
| Miscellaneous information |
AGROVOC |
| 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 |
|---|
| Personal name |
Beck, D.L., |
| Relator term |
coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Cordova, H.S., |
| Relator term |
coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Edmeades, G.O., |
| Relator term |
coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B. |
| Relator term |
eds. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Conference proceedings |