MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03895nab|a22004457a|4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
66528 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20231101181716.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
|---|
| fixed length control field |
202107s2023||||sz |||p|op||||00||0|eng|d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
|---|
| International Standard Serial Number |
1664-462X (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER |
|---|
| Standard number or code |
https://doi.org/10.3389/fpls.2023.1147424 |
| 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 |
|---|
| Personal name |
Singamsetti, A. |
| 9 (RLIN) |
26343 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Genetic gains in tropical maize hybrids across moisture regimes with multi-trait-based index selection |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Switzerland : |
| Name of publisher, distributor, etc. |
Frontiers, |
| Date of publication, distribution, etc. |
2023. |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Peer review |
| 500 ## - GENERAL NOTE |
|---|
| General note |
Open Access |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Unpredictable weather vagaries in the Asian tropics often increase the risk of a series of abiotic stresses in maize-growing areas, hindering the efforts to reach the projected demands. Breeding climate-resilient maize hybrids with a cross-tolerance to drought and waterlogging is necessary yet challenging because of the presence of genotype-by-environment interaction (GEI) and the lack of an efficient multi-trait-based selection technique. The present study aimed at estimating the variance components, genetic parameters, inter-trait relations, and expected selection gains (SGs) across the soil moisture regimes through genotype selection obtained based on the novel multi-trait genotype–ideotype distance index (MGIDI) for a set of 75 tropical pre-released maize hybrids. Twelve traits including grain yield and other secondary characteristics for experimental maize hybrids were studied at two locations. Positive and negative SGs were estimated across moisture regimes, including drought, waterlogging, and optimal moisture conditions. Hybrid, moisture condition, and hybrid-by-moisture condition interaction effects were significant (p ≤ 0.001) for most of the traits studied. Eleven genotypes were selected in each moisture condition through MGIDI by assuming 15% selection intensity where two hybrids, viz., ZH161289 and ZH161303, were found to be common across all the moisture regimes, indicating their moisture stress resilience, a unique potential for broader adaptation in rainfed stress-vulnerable ecologies. The selected hybrids showed desired genetic gains such as positive gains for grain yield (almost 11% in optimal and drought; 22% in waterlogging) and negative gains in flowering traits. The view on strengths and weaknesses as depicted by the MGIDI assists the breeders to develop maize hybrids with desired traits, such as grain yield and other yield contributors under specific stress conditions. The MGIDI would be a robust and easy-to-handle multi-trait selection process under various test environments with minimal multicollinearity issues. It was found to be a powerful tool in developing better selection strategies and optimizing the breeding scheme, thus contributing to the development of climate-resilient maize hybrids. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Genotype environment interaction |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1133 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Moisture content |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
12723 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Drought |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1080 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Waterlogging |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
2241 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Climate resilience |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
28838 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Maize |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1173 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Genetic gain |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
2091 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Zaidi, P.H. |
| 9 (RLIN) |
862 |
| Field link and sequence number |
INT2823 |
| Miscellaneous information |
Global Maize Program |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Seetharam, K. |
| 9 (RLIN) |
1446 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Vinayan, M.T. |
| 9 (RLIN) |
925 |
| Field link and sequence number |
INT3341 |
| Miscellaneous information |
Global Maize Program |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Olivoto, T. |
| 9 (RLIN) |
31981 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Mahato, A. |
| 9 (RLIN) |
31982 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Madankar, K. |
| 9 (RLIN) |
26344 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Kumar, M. |
| 9 (RLIN) |
26345 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Shikha, K. |
| 9 (RLIN) |
26347 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Title |
Frontiers in Plant Science |
| Related parts |
v. 14, art. 1147424 |
| Place, publisher, and date of publication |
Switzerland : Frontiers, 2023. |
| Record control number |
56875 |
| International Standard Serial Number |
1664-462X |
| 856 4# - ELECTRONIC LOCATION AND ACCESS |
|---|
| Link text |
Open Access through DSpace |
| Uniform Resource Identifier |
https://hdl.handle.net/10883/22725 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Article |
| Suppress in OPAC |
No |
| Source of classification or shelving scheme |
Dewey Decimal Classification |