Heterosis and combining ability of CIMMYT quality protein maize germplasm: (Record no. 12700)

000 -LEADER
fixed length control field 03865nab a22005297a 4500
001 - CONTROL NUMBER
control field G41306
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190327212714.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211b |||p||p||||||| |z||| |
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1435-0653 (Revista en electrónico)
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 0# - LANGUAGE CODE
Language code of text/sound track or separate title En
043 ## - GEOGRAPHIC AREA CODE
Geographic area code US
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
072 #0 - SUBJECT CATEGORY CODE
Subject category code Q04
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) Look
Local cutter number (OCLC) ; Book number/undivided call number, CALL (RLIN) under journal title
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Vasal, S.K.
245 00 - TITLE STATEMENT
Title Heterosis and combining ability of CIMMYT quality protein maize germplasm:
Remainder of title I Lowland tropical
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 1993
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
500 ## - GENERAL NOTE
General note Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0011-183X
520 ## - SUMMARY, ETC.
Summary, etc. CIMMYT has developed a wide array of hard endosperm opaque-2 (o2) maize germplasm, through the combined use of two genetic systems involving the o2 gene for improving protein quality and the genetic modifiers of the o2 locus for improving grain phenotype and ameliorating other o2-associated defects. The objective of this study was to determine the heterotic patterns and combining ability of tropical quality protein maize (QPM) germplasm, and to identify superior germplasm suitable for hybrid development. Ten parents (four QPM pools, five QPM populations, and experimental variety PR7737) were used in a diallel study in eight environments. Data on grain yield, time to silk, plant height, and endosperm hardness were recorded. GCA effects were highly significant for all traits and SCA effects were significant for time to silk and plant height. Genotype x environment interactions and their partitions were significant for grain yield and endosperm hardness. Pool 24 QPM was the highest-yielding parent (6.48 t/ha) and Pod 24 QPM x Population 63 was the highest-yielding cross (6.56 t/ha) among hard endosperm parents. PR7737, a soft endosperm opaque-2, was low yielding as a parent, but performed better in crosses with other hard endosperm parents and showed high heterosis. High-parent heterosis for grain yield was generally low in all crosses except those involving PR7737 as a parent. Endosperm hardness ratings were intermediate relative to the parents, suggesting polygenic control. Crosses among white endosperm parents generally performed better than crosses among yellow endosperm parents. Crosses among dents and dent x flints yielded higher than flint crosses, but flint parents and their crosses had a superior endosperm modification compared with dents. Populations 62, 63, and PR7737 showed significant positive GCA effects for grain yield; Pool 23 QPM, Pool 25 QPM, and Populations 62, 64, and 65 had significant negative GCA effects for endosperm hardness. Populations 62 and 63 among white endosperm materials and Population 65 among yellow endosperm could be used for initiating hybrid development work. The broad genetic base provides opportunities for developing intrapopulation interline hybrids
536 ## - FUNDING INFORMATION NOTE
Text of note Genetic Resources Program
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation MP|Crop Science Society of America (CSSA)|R93ANALY|1
594 ## - STAFFID
StaffID CCJL01
595 ## - COLLECTION
Collection CIMMYT Staff Publications Collection
595 ## - COLLECTION
Collection Serials Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Combining ability
9 (RLIN) 2367
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1133
Topical term or geographic name as entry element Genotype environment interaction
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Germplasm
9 (RLIN) 1136
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Hybrid vigour
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Lowland
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1223
Topical term or geographic name as entry element Protein quality
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Tropical zones
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1314
Topical term or geographic name as entry element Zea mays
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1313
Topical term or geographic name as entry element Yields
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1151
Topical term or geographic name as entry element Hybrids
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1203
Topical term or geographic name as entry element Plant breeding
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Beck, D.L.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Gonzalez Ceniceros, F.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Pandey, S.,
Relator term coaut.
9 (RLIN) 1500
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Srinivasan, G.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 59
Personal name Crossa, J.
Miscellaneous information Genetic Resources Program
Field link and sequence number CCJL01
Relator term coaut.
773 0# - HOST ITEM ENTRY
Title Crop Science
Note 625299
Related parts v. 33, no. 1, p. 46-51
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Holdings
Withdrawn status Lost status Damaged status Not for loan Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
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