MARC details
| 000 -LEADER |
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| fixed length control field |
02962nam a22003977a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G64912 |
| 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 |
20240919021049.0 |
| 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 |
968-6923-79-9 |
| 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 |
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| Subject category code |
H20 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.153 |
| Item number |
MIH |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Urbina A., R. |
| Affiliation |
Insect Resistant Maize: Recent Advances and Utilization. Proceedings of an International Symposium; Mexico, DF (Mexico); 27 Nov - 3 Dec 1994 |
| 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) |
| 245 00 - TITLE STATEMENT |
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| Title |
Improving two tropical maize populations for resistance to stunt complex |
| 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. |
1997 |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Caused by mycoplasmas, spiroplasmas, and maize fine stripe virus, maize stunt complex is endemic throughout the tropical lowlands of Central America and poses a potential danger for maize production in the region. To counteract the damaging effects of the disease in commercial maize plots, the Regional Maize Program for Central America and the Caribbean (Programa Regional de Maiz, PRM/CAC) has undertaken a collaborative stunt resistance breeding project, with the principal objective of developing high yielding, disease resistant cultivars. A tropical late white dent population (Pop. 73) and a tropical intermediate white flint population (Pop. 76), in their fifth and third improvement cycle, respectively, are being improved using an Sl-S2 recurrent selection scheme. Research conducted independently in El Salvador and Nicaragua is aimed at developing Sl lines, advancing them to S2, recombining the best segments of each population, and forming experimental synthetic varieties. Lines are evaluated in both countries during normal crop cycles under heavy disease pressure. Lines developed each cycle are tested in countries in the region facing stunt problems. Synthetics developed during the latest breeding cycles (SC3P73 N, SC2P76 N and SC3P73 R) out-yielded resistant cultivar NB-6 by 15.5%, 11.7%, and 17% respectively. A variable percentage (1-20.5%) had fewer stunted plants and ears. In disease free environments, performance of resistant cultivars was statistically similar to that of susceptible high yielding hybrids used as reference checks. Resistant cultivars show outstanding performance under disease pressure in less favored environments, without any loss in yield potential in favored ones. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
English |
| 591 ## - CATALOGING NOTES |
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| Affiliation |
9711|AGRIS 9702 |
| 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 |
Central America |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Disease control |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| 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 |
Plant diseases |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1206 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Recurrent selection |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Tropical zones |
| 653 0# - INDEX TERM--UNCONTROLLED |
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| 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 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 |
Mihm, J.A. |
| Relator term |
ed. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Koha item type |
Conference proceedings |