Knowledge Center Catalog

Phenotypic assessment of genetic gain from selection for improved drought tolerance in semi-tropical maize populations (Record no. 65282)

MARC details
000 -LEADER
fixed length control field 03256nab|a22003977a|4500
001 - CONTROL NUMBER
control field 65282
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20231013184537.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 20221s2022||||mx |||p|op||||00||0|eng|d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0931-2250
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1439-037X (Online)
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1111/jac.12592
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 Musimwa, T.R.
9 (RLIN) 27423
245 11 - TITLE STATEMENT
Title Phenotypic assessment of genetic gain from selection for improved drought tolerance in semi-tropical maize populations
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher, distributor, etc. Wiley,
Date of publication, distribution, etc. 2023.
Place of publication, distribution, etc. United Kingdom :
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Most maize production across the globe is rain-fed, and production is set to be negatively impacted as duration and occurrence of droughts increases due to climate change. Development of water-deficit tolerant maize germplasm has been a major focus for most breeding programmes. Here, we sought to assess the genetic gain for grain yield in two maize populations developed for drought tolerance at CIMMYT by evaluating their cycle progeny through hybrid performance. Inbreds derived from different cycles of the Drought Tolerant Population (DTP) and La Posta Sequia (LPS) were mated to a tester (CML550), and resulting hybrids were evaluated under managed water-deficit stress and well-watered conditions. The difference in yield between water-deficit and well-watered treatments was 27% and 36% for the DTP and LPS, respectively. Genetic gain for grain yield across cycles for the two populations was confirmed in the study. Genetic gain was observed for both treatments indicating that selection for water-deficit stress tolerance simultaneously improves grain yield in well-watered conditions. The DTP population had a genetic gain of 0.07 t ha−1 cycle−1, while the LPS had 0.16 t ha−1 cycle−1 under water-deficit conditions. Significant genetic gain was also observed in the well-watered treatments for both populations. Anthesis to silking interval was significantly reduced under water-deficit stress conditions in both populations. Plant and ear height were reduced in the LPS population in both treatments, while no reductions were observed for the trait in the DTP population. Potential water-deficit stress tolerance donor lines with yields comparable to commercial check varieties were identified.
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Drought tolerance
Source of heading or term AGROVOC
9 (RLIN) 1082
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Water
Source of heading or term AGROVOC
9 (RLIN) 4355
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 Climate change
Source of heading or term AGROVOC
9 (RLIN) 1045
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 Molnar, T.L.
Field link and sequence number I1706071
9 (RLIN) 802
Miscellaneous information Formerly Genetic Resources Program
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Dutta, S.
9 (RLIN) 11574
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Dhliwayo, T.
Field link and sequence number INT3355
9 (RLIN) 935
Miscellaneous information Global Maize Program
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Trachsel, S.
Field link and sequence number INT3300
9 (RLIN) 914
Miscellaneous information Global Maize Program
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Lee, M.
9 (RLIN) 5361
773 0# - HOST ITEM ENTRY
Title Journal of Agronomy and Crop Science
Place, publisher, and date of publication United Kingdom : Wiley, 2023
International Standard Serial Number 0931-2250
Related parts v. 209, no. 1, p. 71-82
Record control number G444504
856 ## - ELECTRONIC LOCATION AND ACCESS
Link text Open Access through DSpace
Uniform Resource Identifier https://hdl.handle.net/10883/22070
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Suppress in OPAC No
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
05/12/2022   05/12/2022 Article Not Lost Dewey Decimal Classification     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 05/12/2022

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