Knowledge Center Catalog

Small seed packs, big potential? Effect of seed packs on knowledge and adoption of improved crop varieties : (Record no. 69847)

MARC details
000 -LEADER
fixed length control field 03417nam a22004217a 4500
001 - CONTROL NUMBER
control field 69847
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20260126144245.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 260126s2025 ||||| |||| 00| 0 eng d
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
Personal name Mulungu, K.H.
Field link and sequence number 001714131
Miscellaneous information Sustainable Agrifood Systems
9 (RLIN) 33325
245 10 - TITLE STATEMENT
Title Small seed packs, big potential? Effect of seed packs on knowledge and adoption of improved crop varieties :
Remainder of title technical report
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. [Place of publication not identified] :
Name of publisher, distributor, etc. CIMMYT,
Date of publication, distribution, etc. 2025.
300 ## - PHYSICAL DESCRIPTION
Extent 28 pages
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Small seed packs are widely distributed to promote improved crop varieties, yet their effectiveness remains contested. This study evaluates how small seed packs influence knowledge and adoption of improved legumes, cereals, and vegetables among smallholder farmers in Tanzania and Zambia. Using mobile phone survey data from 1,577 respondents (840 in Tanzania, 737 in Zambia) and entropy balancing and machine learning to address self-selection, we uncover evidence of seed pack effectiveness across different crops. Seed packs significantly increased farmers technical knowledge scores for biofortified iron beans, cowpeas and improved traditional African vegetables by in both countries. Notably, while seed packs showed minimal impact on drought-tolerant maize (DTM) knowledge—reflecting high baseline awareness—they still significantly increased DTM adoption, revealing distinct knowledge-transfer and experiential-learning pathways through which seed packs influence farmer behavior. Adoption impacts were substantial across all crops: seed packs increased adoption likelihood by 10-16 pp for legumes and 9-13 pp for cereals in Tanzania, with slightly smaller but significant effects for vegetables (5-9 pp). Similar adoption gains were observed in Zambia (9-11 pp for legumes, and about 12 pp for DTM). These consistent positive effects across different crops and contexts, robust to alternative estimation approaches, confirm that small seed packs represent a promising demand creation mechanism for improved germplasm, with particularly strong impacts for crops where farmers have limited prior exposure, but persistent adoption benefits even for familiar technologies but with low baseline adoption.
546 ## - LANGUAGE NOTE
Language note Text in English
597 ## - CGIAR Initiative
Program & Accelerators Scaling for Impact
Donor or Funder CGIAR Trust Fund
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Smallholders
Source of heading or term AGROVOC
9 (RLIN) 1763
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Demand
Source of heading or term AGROVOC
9 (RLIN) 9096
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Improved germplasm
Source of heading or term AGROVOC
9 (RLIN) 34339
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Machine learning
Source of heading or term AGROVOC
9 (RLIN) 11127
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Entropy
Source of heading or term AGROVOC
9 (RLIN) 40511
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Geographic name United Republic of Tanzania
Source of heading or term AGROVOC
9 (RLIN) 4101
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Geographic name Zambia
Source of heading or term AGROVOC
9 (RLIN) 4309
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Subakanya Mitelo
Field link and sequence number 001713985
Miscellaneous information Formerly Sustainable Agrifood Systems
9 (RLIN) 20491
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Setimela, P.S.
Miscellaneous information Sustainable Agrifood Systems
Field link and sequence number INT2636
9 (RLIN) 846
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Akpo, E.
Field link and sequence number 001713988
Miscellaneous information Global Maize Program
9 (RLIN) 30015
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number 001712096
Personal name Chivasa, W.
Miscellaneous information Global Maize Program
9 (RLIN) 19858
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Gethi, J.
Miscellaneous information Global Maize Program
Field link and sequence number INT3343
9 (RLIN) 927
700 1# - ADDED ENTRY--PERSONAL NAME
Field link and sequence number 001713480
Personal name Chiduwa, M.S.
Miscellaneous information Sustainable Agrifood Systems
9 (RLIN) 29879
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Sigalla, J.
9 (RLIN) 41147
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Mvungi, H.
9 (RLIN) 38101
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Ngoma, H.
Field link and sequence number 001712572
Miscellaneous information Sustainable Agrifood Systems
9 (RLIN) 15771
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Open Access through DSpace
Uniform Resource Identifier https://hdl.handle.net/10883/36843
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Report
Suppress in OPAC No
Source of classification or shelving scheme Dewey Decimal Classification
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
01/26/2026   01/26/2026 Report Not Lost Dewey Decimal Classification     CIMMYT Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 01/26/2026

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