MARC details
| 000 -LEADER |
|---|
| fixed length control field |
02722naa a22002897a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
58637 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20211006082041.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
170208s2017 mx ||||| |||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
1903 |
| Personal name |
Rivera Amado, A.C. |
| Field link and sequence number |
N1313814 |
| Miscellaneous information |
Global Wheat Program |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Identifying avenues for increasing harvest index in high biomass wheat cultivars while maintaining post-anthesis photosynthetic capacity |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Mexico : |
| Name of publisher, distributor, etc. |
CIMMYT, |
| Date of publication, distribution, etc. |
2017. |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Open Access |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
When optimizing pre-anthesis dry matter (DM) partitioning among plant organs to enhance grains per m2 and harvest index, the consequences for post-anthesis photosynthetic capacity should be considered. Key processes to consider are: i) leaf lamina and leaf sheath DM partitioning in relation to light interception and photosynthetic rate; ii) non-structural (water soluble carbohydrates; WSC) stem DM partitioning in relation to utilization of stored assimilate for grain filling; and iii) the spike's potential capacity for up-regulation of photosynthesis in relation to decreases in the source:sink balance. In this study, for a set of 26 CIMMYT spring wheat genotypes, grain source:sink balance was estimated by comparing grain weight (GW) responses to several source:sink manipulation treatments. The objectives were to quantify variation in source:sink balance and associations with DM partitioning with photosynthetic traits and grain yield. Results showed responses of cultivars to a de-graining treatment ranged from 1% to 27.9% increases in individual GW in 2011, 2012 and 2013 (P <0.001). The overall decreases in GW in response to a leaf lamina defoliation treatment ranged from -6.5 to -16% (P <0.05) in 2012 and 2013, and in response to a leaf sheath covering treatment from -9.3 to -11.2% (P <0.01) in 2014. Our results indicated that the grain yield of high yielding lines was co-limited by source and sink and that the leaf sheath's contribution to grain filling is important in the studied genotypes and should be taken into account when optimizing partitioning pre-anthesis to enhance HI in high biomass backgrounds. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1897 |
| Topical term or geographic name as entry element |
Biomass |
| Miscellaneous information |
AGROVOC |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Wheat |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1310 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
1899 |
| Personal name |
Trujillo, E. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
1900 |
| Personal name |
Sylvester Bradley, R. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
899 |
| Personal name |
Molero, G. |
| Miscellaneous information |
Formerly Global Wheat Program |
| Field link and sequence number |
INT3193 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Reynolds, M.P. |
| Miscellaneous information |
Global Wheat Program |
| Field link and sequence number |
INT1511 |
| 9 (RLIN) |
831 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| 9 (RLIN) |
1823 |
| Personal name |
Foulkes, M.J. |
| 773 0# - HOST ITEM ENTRY |
|---|
| Record control number |
u58466 |
| Place, publisher, and date of publication |
Mexico : CIMMYT : USAID : MASAGRO : SAGARPA : CONACYT, 2017. |
| Title |
Proceedings of the 3rd International TRIGO (Wheat) Yield Potential : |
| Related parts |
p. 85-91 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Conference proceedings |