MARC details
| 000 -LEADER |
|---|
| fixed length control field |
04420nab a22003857a 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
G89761 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20220509212059.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
210917s2007 xxk|||p|op||| 00| 0 eng d |
| 022 0# - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
0021-8596 |
| 022 0# - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
1469-5146 (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER |
|---|
| Standard number or code |
https://doi.org/10.1017/S0021859607006831 |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 0# - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
|---|
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
CIS-4968 |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Reynolds, M.P. |
| Miscellaneous information |
Global Wheat Program |
| Field link and sequence number |
INT1511 |
| 9 (RLIN) |
831 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Association of source/sink traits with yield, biomass and radiation use efficiency among random sister lines from three wheat crosses in a high-yield environment |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
United Kingdom : |
| Name of publisher, distributor, etc. |
Cambridge University Press, |
| Date of publication, distribution, etc. |
2007. |
| 340 ## - PHYSICAL MEDIUM |
|---|
| Material base and configuration |
Computer File|Printed |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Paper presented at International Workshop on Increasing Wheat Yield Potential, CIMMYT, Obregon, Mexico, 20-24 March 2006 |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
For many years yield improvement reported in wheat was associated with increased dry matter partitioning to grain, but more recently increases in above-ground biomass have indicated a different mechanism for achieving yield potential. The most likely way of increasing crop biomass is by improving radiation use efficiency (RUE); however there is evidence that sink strength is still a critical yield limiting factor in wheat, suggesting that improving the balance between source and sink (source/sink (SS)) is currently the most promising approach for increasing yield, biomass, and RUE. Experiments were designed to establish a more definitive link of SS traits with yield, biomass and RUE in high-yield environments using progeny deriving from parents contrasting in some of those traits. The SS traits formed three main groups relating to (i) phenological pattern of the crop, (ii) assimilation capacity up until shortly after anthesis, and (iii) partitioning of assimilates to reproductive structures shortly after anthesis. The largest genetic gains in performance traits were associated with the second group; however, traits from the other groups were also identified as being genetically linked to improvement in performance parameters. Because many of these traits are interrelated, principal component analysis (PCA) multiple regression and path analysis were used to expose these relationships more clearly. The trait most consistently associated with performance traits was biomass at anthesis (BMA). The PCA indicated a fairly close association among traits within this group (i.e. assimilation-related traits) while those from the other two groups of SS traits (i.e. phenological and partitioning) appeared to have secondary but independent effects. These conclusions were partially born out by stepwise multiple regression for individual crosses where BMA was often complemented by traits from the two other groups. Taken together, the data suggest that the assimilation traits biomass in vegetative stage (BMV) and BMA have partially independent genetic effects in this germplasm and were complementary to achieving improved performance. The identification of a number of SS traits associated with yield and biomass, which both PCA and multiple regression suggest as being at least partially independent of one another, support the idea that additive gene action could be achieved by adopting a physiological trait based breeding approach where traits from different groups are combined in a single background. A second breeding intervention based on these results would be in selecting progeny for BMA and BMV using spectral reflectance approaches since those traits that lend themselves to large-scale screening. Path analysis confirmed the importance of the spike primordial stage in the genotype by environment interaction for these traits. |
| 536 ## - FUNDING INFORMATION NOTE |
|---|
| Text of note |
Global Wheat Program |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 594 ## - STAFFID |
|---|
| StaffID |
INT1511 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
6283 |
| Topical term or geographic name as entry element |
Source sink relations |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
26321 |
| Topical term or geographic name as entry element |
Photosynthetically active radiation |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1155 |
| Topical term or geographic name as entry element |
Inbred lines |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
4558 |
| Topical term or geographic name as entry element |
Environmental factors |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Calderini, D.F. |
| 9 (RLIN) |
1417 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Condon, A.G. |
| 9 (RLIN) |
4290 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Vargas, M. |
| 9 (RLIN) |
3542 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
The Journal of Agricultural Science |
| Note |
634614 |
| Related parts |
v. 145, no. 1, p. 3-16 |
| Place, publisher, and date of publication |
United Kingdom : Cambridge University Press, 2007. |
| Record control number |
G444500 |
| International Standard Serial Number |
0021-8596 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
|---|
| Link text |
Access only for CIMMYT Staff |
| Uniform Resource Identifier |
https://hdl.handle.net/20.500.12665/1612 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Suppress in OPAC |
No |