Knowledge Center Catalog

Effects of awn suppression on grain yield and agronomic traits in hard red winter wheat (Record no. 29607)

MARC details
000 -LEADER
fixed length control field 02661nab a22002657a 4500
001 - CONTROL NUMBER
control field G97328
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20170719155451.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211b |||p||p||||||| |z||| |
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 0# - LANGUAGE CODE
Language code of text/sound track or separate title En
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Weyhrich, R.A.
245 00 - TITLE STATEMENT
Title Effects of awn suppression on grain yield and agronomic traits in hard red winter wheat
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 1994
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. Producers in the southern Great Plains who utilize wheat for grain, hay, or late-season grazing would benefit from awnless hard red winter (HRW) wheat cultivars if yield potential is maintained relative to awned cultivars. The influence of awn suppression in contemporary cultivars in the southern Great Plains is unknown. Our objective was to determine the genetic effect of awn suppression on grain yield and agronomic traits measured in several HRW backgrounds and Oklahoma production environments. Experimental materials were derived by two methods from the same source populations: ?TAM 107?*2/?McNair 1003?, ?Mustang?*2/McNair 1003, and ?Century?*2/ McNair 1003. Bulk populations of lines were derived randomly from either homozygous awned or awnletted (spikes with one to three tip awns) F2 plants in each cross. The six bulk populations were evaluated in 11 environments. In a separate experiment, 78 pairs of awned and awnletted F3-derived sib lines (26 pairs per cross) were evaluated in four environments. No differences in grain yield were detected between awned and awnletted bulk populations from Mustang or Century, but a significant decrease in yield was found for the awnletted TAM 107 population. Significant decreases in test weight were associated with the awnletted character in all backgrounds. The Century-awnletted population had longer spikes, greater spike harvest index, and more kernels per spike than the Century-awned bulk. In 69% of the sib-pair comparisons, the awnletted sib did not differ significantly from the awned sib in grain yield. Where significant differences occurred, the awned sib was always higher yielding. It may be possible to develop awnletted lines with acceptable yield performance in the Great Plains, but close attention must be given to test weight to maintain current expectations of awned cultivars.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation Crop Science Society of America (CSSA)
595 ## - COLLECTION
Collection Reprints Collection
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Carver, B.F.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Smith, E.L.,
Relator term coaut.
773 0# - HOST ITEM ENTRY
Title Crop Science
Related parts v. 34, no. 4, p. 965-969
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
07/03/2017   07/03/2017 Article Not Lost     Reprints Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 07/03/2017

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