MARC details
| 000 -LEADER |
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| fixed length control field |
03238nab a22003377a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
G90427 |
| 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 |
20230904182928.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
210618s2008 at |||p|op||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
0004-9409 |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.1071/AR07223 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
CIS-5282 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
Lage, J. |
| 9 (RLIN) |
20327 |
| 245 10 - TITLE STATEMENT |
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| Title |
CIMMYT's use of synthetic hexaploid wheat in breeding for adaptation to rainfed environments globally |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
Victoria (Australia) : |
| Name of publisher, distributor, etc. |
CSIRO Publishing, |
| Date of publication, distribution, etc. |
2008. |
| 340 ## - PHYSICAL MEDIUM |
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| Material base and configuration |
Computer File|Printed |
| 500 ## - GENERAL NOTE |
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| General note |
Peer review |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
The International Maize and Wheat Improvement Center (CIMMYT) has had significant impact on wheat production in rainfed regions of the developing world. During the last decade, yield potential has increased in drought-prone areas partly due to the use of synthetic hexaploid wheat (SHW), produced through interspecific hybridisation of Triticum turgidum spp. and Aegilops tauschii, followed by chromosome doubling. The objectives of this study were to document the use of SHW in wheat breeding at CIMMYT and quantify its potential effect on global wheat adaptation. The first SHWderived lines targetted at rainfed conditions appeared in the 5th Semi-Arid Wheat Yield Trial (SAWYT) representing8%of the lines, increasing to 46% by the 15th SAWYT.During the same period the average coefficient of parentage ofSHWin all synthetically derived crosses decreased from 75 to 19%. Average yield rank of genotypes across locations and years was used as a performance indicator of the SHW-derived lines in SAWYT 5–12. In the 5th SAWYT the average rank of the SHW-derived lines was 30 (out of 50) increasing to 25 by the 12th SAWYT.SAWYT11 was the first trial to include SHWderived lines bred exclusively for rainfed environments, using directed selection for drought tolerance. International trial data from SAWYT 11 and 12 showed that the SHW-derived line Vorobey was a top-performing line. Vorobey performed well across all environments compared with the best locally adapted check cultivar at each location; trial means ranged from 1 to 8 t/ha. To further exploit genetic diversity for adaptation to drought, SHW has been produced using emmer wheat (T. turgidum L. subsp. dicoccon) as the tetraploid parent. Yield trial data from Mexico show thatSHWderivatives based on emmerwheat improved yield performance under drought compared with their drought-tolerant recurrent parents. Theuse of SHWin wheat breeding for rainfed environments atCIMMYThas increased significantly over the past 10–15 years and the performance and effect of the derived lines have improved with time. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
Text in English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
CSIRO |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| 9 (RLIN) |
1080 |
| Topical term or geographic name as entry element |
Drought |
| Source of heading or term |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Experimentation |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
4432 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Experimental data |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
14932 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Wheat |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1310 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
341 |
| Personal name |
Trethowan, R.M. |
| 773 0# - HOST ITEM ENTRY |
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| Title |
Australian Journal of Agricultural Research |
| Note |
635180 |
| Related parts |
v. 59, no. 5, p. 461-469 |
| Place, publisher, and date of publication |
Victoria (Australia) : CSIRO Publishing, 2008. |
| Record control number |
G444170 |
| International Standard Serial Number |
0004-9409 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
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| Link text |
Access only for CIMMYT Staff |
| Uniform Resource Identifier |
https://hdl.handle.net/20.500.12665/743 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Suppress in OPAC |
No |