Characteristics of maize cultivars in Africa : (Record no. 58531)

000 -LEADER
fixed length control field 03380nab a22003497a 4500
001 - CONTROL NUMBER
control field a58531
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20191210150218.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 160121s2017\\\\enk|||p|op|||\00|\0\eng\d
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1186/s40066-017-0108-6
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) 966
Personal name Tsedeke Abate
Miscellaneous information Global Maize Program
Field link and sequence number INT3516
245 1# - TITLE STATEMENT
Title Characteristics of maize cultivars in Africa :
Remainder of title How modern are they and how many do smallholder farmers grow?
Medium [Electronic Resource]
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. London :
Name of publisher, distributor, etc. BioMed Central Ltd.,
Date of publication, distribution, etc. 2017.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Background: Maize is the most important cereal and most widely cultivated staple that plays a key role in the food security of sub-Saharan Africa (SSA). Although some countries have achieved significant gains in maize productivity, the SSA average yields are far below what could be obtained with improved cultivars under good crop management. Low cultivar turnover is one among many contributing factors to low maize yields in SSA. At present, there is a critical knowledge gap on the identity, number, and age of maize cultivars currently grown by smallholder farmers on the continent. Results: This study revealed that nearly 500 maize cultivars were grown in 13 African countries surveyed in the 2013/2014 main crop season. Sixty-nine percent of the cultivars each occupied <1% of the total maize area; only two cultivars occupied >40% and four occupied >30% area. Approximately 32% of all the cultivars were hybrids, 23% were improved open-pollinated varieties (OPVs), and 46% were locals. Eastern Africa (EA) and southern Africa (SA) accounted for about 43 and 38%, respectively, of all the cultivars reported, whereas West Africa’s (WA) share was 19%. The average area planted to modern cultivars in the surveyed areas was estimated at 57%—with EA, SA, and WA estimates of 82, 55, and 36%, respectively; however, increased adoption was not necessarily always related to improved productivity, as the latter depends on many additional factors. Each household planted an average of 1.781 cultivars (range 1–8). The overall weighted average age of the cultivars was 15 years, with hybrids and OPVs being 13 and 18 years, respectively. Conclusions: Maize variety turnover in SSA is slower than what is practiced in the USA and other world regions such as Latin America and Asia. The substantial variations among regions and countries in all parameters measured suggest a tailored approach to mitigation interventions. Findings of this current study pave the way for replacing the old cultivars with more recent releases that are tolerant or resistant to multiple stresses and are more resilient.
546 ## - LANGUAGE NOTE
Language note Text in English
591 ## - CATALOGING NOTES
Number of CIMMYT Informa CIMMYT Informa: 1995 (July 13, 2017)
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1173
Topical term or geographic name as entry element Maize
Source of heading or term AGROVOC
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1303
Topical term or geographic name as entry element Varieties
Source of heading or term AGROVOC
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 6026
Topical term or geographic name as entry element Adaptation
Source of heading or term AGROVOC
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1763
Topical term or geographic name as entry element Smallholders
Source of heading or term AGROVOC
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
9 (RLIN) 1316
Geographic name Africa
Source of heading or term AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 931
Personal name Fisher, M.
Field link and sequence number INT3350
Miscellaneous information Socioeconomics Program
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 2286
Personal name Abdoulaye, T.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 549
Personal name Kassie, G.T.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 813
Personal name Lunduka, R.
Field link and sequence number I1706174
Miscellaneous information Socioeconomics Program
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 787
Personal name Marenya, P. P.
Miscellaneous information Socioeconomics Program
Field link and sequence number I1705822
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 1358
Personal name Asnake, W.
773 0# - HOST ITEM ENTRY
Title Agriculture and food security
Record control number 57303
Place, publisher, and date of publication London : BioMed Central Ltd.,
International Standard Serial Number 2048-7010
Related parts v. 6, no. 30
856 4# - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://hdl.handle.net/10883/18263
Link text Open access through Dspace
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Article
Suppress in OPAC 0
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Date last seen Price effective from Koha item type
  Not Lost       CIMMYT Staff Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2017-04-24 2017-04-24 2017-04-24 Article
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