Progress towards hybrid maize development in the Southern Highlands of Tanzania (Record no. 9502)

000 -LEADER
fixed length control field 02554nam a22003617a 4500
001 - CONTROL NUMBER
control field 64983
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20170719154847.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s ||||f| 0 p|p||0|| |
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number 92-9146-025-7
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.15
Item number EAS No. 5
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Lyimo, N.G.
Affiliation Maize Productivity Gains through Research and Technology Dissemination. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 5; Arusha (Tanzania); 3-7 Jun 1996
110 2# - MAIN ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 00 - TITLE STATEMENT
Title Progress towards hybrid maize development in the Southern Highlands of Tanzania
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Addis Ababa (Ethiopia)
Name of publisher, distributor, etc. CIMMYT :
Date of publication, distribution, etc. 1997
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
520 ## - SUMMARY, ETC.
Summary, etc. The southern highlands (SH) of Tanzania constitute an important maize growing zone, accounting for over 46% of total maize production in the country. Hybrid maize is widely accepted in this zone, however, farmers have relied on old, relatively low yielding, non-uniform hybrid varieties for a long time. In order to address this problem, inbred line development was initiated in the late 1980's, in order to generate new hybrid varieties for the high and intermediate elevation maize growing areas of the country. Inbred lines developed from high and intermediate altitude maize germplasm have shown promising results in top cross evaluation trials across locations in the SH. Top crosses involving high altitude inbred lines showed high grain yield potential, as several entries exceeded the commercial hybrids H6302 and H614 by over 20%. In top cross evaluation trials for the intermediate elevation zone, several entries outyielded the commercial hybrids C6222 and C4142 in a similar manner. These results indicate the possibility of generating a set of high yielding top cross hybrids for the two agro-ecological zones, as a first step towards solving the problem of hybrid seed quality in the SH, to be followed by further work towards the formation of three-way and single crosss hybrids.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 9712|AGRIS 9702
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Highlands
9 (RLIN) 1148
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Tanzania
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Varieties
9 (RLIN) 1303
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
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) 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 Ransom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C.
Relator term eds.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not Lost     CIMMYT Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 633.15 EAS No. 5 R624172 2015-02-10 1 2015-02-10 Conference proceedings
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