MARC details
| 000 -LEADER |
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| fixed length control field |
03113nam a22004697a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G65917 |
| 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 |
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| Subject category code |
H50 |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
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| Classification number |
633.153 |
| Item number |
EDM |
| 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 |
|---|
| Personal name |
Magorokosho, C. |
| Miscellaneous information |
Formerly Global Maize Program |
| Field link and sequence number |
INT2714 |
| 9 (RLIN) |
854 |
| 245 00 - TITLE STATEMENT |
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| Title |
Drought tolerance at flowering and cross-over interactions for yield of three maize populations grown in two agro-ecological zones of Zimbabwe |
| 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. |
Development of drought tolerant maize cultivars is a high priority in Zimbabwe, where an average of 77% of the arable land is droughty. Two experiments involving random S1 lines from three maize populations were conducted at three locations in the semi-arid agro-ecological zone Natural Region (NR) IV and one location in the humid zone NR II, to compare grain yield and various secondary traits that might be related to drought tolerance at flowering. Experiment 1 compared 143 lines from ZM601 (selected for drought tolerance for three cycles) with 94 lines from ZM607 (selected for three cycles for high yield under adequate moisture conditions). Experiment 2 compared 162 lines from ZM601 with 154 lines from TSEQ (selected for high yield and drought tolerance for six cycles). Yield responses in experiment 1 showed no advantage for ZM601 over ZM607 in semi-arid, stressed environments. In experiment 2, yield responses were of a cross-over nature; TSEQ out-yielded ZM601 by 33% under stress, while under no stress ZM601 out-yielded TSEQ by 15%. Yield under stress was strongly correlated .with anthesis-silking interval (ASI) (r=-0.27** and -0.25** for the two populations) in experiment 1, and for ZM601 in experiment 2 (r=-0.43**), but not for TSEQ (r=-0.13). Days to flowering was negatively correlated with yield, except for TSEQ, indicating that earliness and, hence, drought escape was important for ZM601 and ZM607 but not for TSEQ. Drought tolerance resulted in higher grain yield than drought escape for the experiments in NR IV of Zimbabwe. |
| 536 ## - FUNDING INFORMATION NOTE |
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| Text of note |
Genetic Resources Program|Global Maize Program |
| 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 |
| 594 ## - STAFFID |
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| StaffID |
INT2714|INT1617 |
| 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 |
Climatic factors |
| 9 (RLIN) |
1048 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Crossbreeding |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| 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 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Flowering |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plant developmental stages |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| 9 (RLIN) |
1211 |
| Topical term or geographic name as entry element |
Plant population |
| Miscellaneous information |
AGROVOC |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Selection |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Zimbabwe |
| 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 |
|---|
| Personal name |
Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B. |
| Relator term |
eds. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
832 |
| Personal name |
Pixley, K.V. |
| Miscellaneous information |
Genetic Resources Program |
| Field link and sequence number |
INT1617 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Conference proceedings |