Year Published
- 2008 (1) Apply 2008 filter
- 2009 (11) Apply 2009 filter
- 2010 (2) Apply 2010 filter
- 2011 (1) Apply 2011 filter
- 2012 (6) Apply 2012 filter
- 2013 (4) Apply 2013 filter
- 2014 (0)
- (-) Remove 2015 filter 2015
- 2016 (3) Apply 2016 filter
- 2017 (4) Apply 2017 filter
- 2018 (1) Apply 2018 filter
- 2019 (0)
- 2020 (1) Apply 2020 filter
- 2021 (0)
Research Topics
Populations
- Countries/Governments (0)
- Rural Populations (0)
- Smallholder Farmers (1) Apply Smallholder Farmers filter
- Women (0)
Types of Research
- Data Analysis (2) Apply Data Analysis filter
- (-) Remove Literature Review filter Literature Review
- Portfolio Review (0)
- Research Brief (0)
Geography
- (-) Remove East Africa Region and Selected Countries filter East Africa Region and Selected Countries
- (-) Remove Global filter Global
- South Asia Region and Selected Countries (1) Apply South Asia Region and Selected Countries filter
- Southern Africa Region and Selected Countries (0)
- (-) Remove Sub-Saharan Africa filter Sub-Saharan Africa
- (-) Remove West Africa Region and Selected Countries filter West Africa Region and Selected Countries
Dataset
- ASTI (0)
- FAOSTAT (0)
- Farmer First (0)
- LSMS & LSMS-ISA (0)
- Other Datasets (0)
Current search
- (-) Remove East Africa Region and Selected Countries filter East Africa Region and Selected Countries
- (-) Remove Agricultural Inputs & Farm Management filter Agricultural Inputs & Farm Management
- (-) Remove Sub-Saharan Africa filter Sub-Saharan Africa
- (-) Remove Global & Regional Public Goods filter Global & Regional Public Goods
- (-) Remove Global filter Global
- (-) Remove 2015 filter 2015
- (-) Remove Research & Development filter Research & Development
- (-) Remove West Africa Region and Selected Countries filter West Africa Region and Selected Countries
- (-) Remove Literature Review filter Literature Review
EPAR Research Brief #312
Publication Date: 07/30/2015
Type: Literature Review
Abstract
This brief reviews the evidence of realized yield gains by smallholder farmers attributable to the use of high-quality seed and/or improved seed varieties. Our analysis suggests that in most cases, use of improved varieties and/or quality seed is associated with modest yield increases. In the sample of 395 trials reviewed, positive yield changes accompanied the use of improved variety or quality seed, on average, in 10 out of 12 crops, with rice and cassava as the two exceptions.