Knowledge Center Catalog

Combining ability and heterosis of elite drought-tolerant maize inbred lines evaluated in diverse environments of lowland tropics (Record no. 59361)

MARC details
000 -LEADER
fixed length control field 03061nab a22003377a 4500
001 - CONTROL NUMBER
control field 59361
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20240919021225.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 180404s2017 ne ||||| |||| 00| 0 eng d
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1007/s10681-017-1840-5
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) 6296
Personal name Adebayo, M. A.
245 1# - TITLE STATEMENT
Title Combining ability and heterosis of elite drought-tolerant maize inbred lines evaluated in diverse environments of lowland tropics
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Netherlands :
Name of publisher, distributor, etc. Springer,
Date of publication, distribution, etc. 2017.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Some authors of this article are affiliated to IITA
520 ## - SUMMARY, ETC.
Summary, etc. Estimates of combining abilities and heterosis of inbred lines are imperative for selection of suitable parents of maize hybrids. This study examined the combining ability of 24 drought-tolerant maize inbred lines, 12 each from International Centre for Maize and Wheat Improvement (CIMMYT) and International Institute of Tropical Agriculture (IITA). The lines were allotted into six groups each comprising four lines. The four lines in one group were used as females and crossed to the four lines in another group as males in six different sets using a North Carolina Design II mating scheme to generate 96 hybrids. The hybrids were evaluated together with four checks across six environments in the rainforest and savannah agro-ecologies of Nigeria between 2011 and 2012. The parental inbred lines were also evaluated in separate trial in each location. Significant hybrids × environment interaction was observed for grain yield and other measured traits. GCA effects accounted for 83.3% of the variation for grain yield at Bagauda, 78.1% at Saminaka, and 77.7% at Ikenne. GCA also contributed 91.1 and 80.0% to the variation observed for plant height and ear aspect, respectively, across the environments. Significant SCA × environment interaction detected for grain yield suggests that hybrids were not stable across test environments. Prediction of grain yield in hybrids using midparent values resulted in a R 2 value of 0.13. Midparent heterosis for grain yield varied from 80 to 411%, with the top 36 hybrids recording >200%. Four CIMMYT (EXL02, EXL06, EXL04 and EXL16) and three IITA (ADL33, ADL41, and ADL32) inbred lines had positive and significant GCA effects for grain yield across environments. The novel alleles present in the CIMMYT lines will improve the adapted IITA germplasm in a new population for extracting new set of more productive inbred lines for developing adapted high yielding drought-tolerant maize hybrids.
526 ## - STUDY PROGRAM INFORMATION NOTE
Program name Maize CRP
546 ## - LANGUAGE NOTE
Language note Text in English
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 2367
Topical term or geographic name as entry element Combining ability
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Plant breeding
Miscellaneous information AGROVOC
Source of heading or term
9 (RLIN) 1203
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Maize
Miscellaneous information AGROVOC
Source of heading or term
9 (RLIN) 1173
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 1818
Personal name Menkir, A.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6756
Personal name Blay, E.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6757
Personal name Gracen, V.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 6758
Personal name Danquah, E.
773 0# - HOST ITEM ENTRY
Related parts no. 213:43
Title Euphytica
Record control number u444298
International Standard Serial Number 1573-5060
856 4# - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier http://libcatalog.cimmyt.org/Download/reprints/59361.pdf
Link text Access only for CIMMYT Staff
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Dewey Decimal Classification
Koha item type Article
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
04/04/2018   04/04/2018 Article Not Lost Dewey Decimal Classification     Reprints Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 04/04/2018

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