ReviewGlobal food security2022
Maize varietal replacement in Eastern and Southern Africa: Bottlenecks, drivers and strategies for improvement.
Review in Global food security, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- More bang for your buck: potential gains through optimizing maize breeding schemes in sub-Saharan Africa.Frontiers in plant science · 2025Article
- Ms44-SPT: unique genetic technology simplifies and improves hybrid maize seed production in sub-Saharan Africa.Scientific reports · 2024Article
- Farmer decision making for hybrid maize seed purchases: Effects of brand loyalty, price discounts and product information.Agricultural systems · 2024Article
- Article
- Genetic trends in the Zimbabwe's national maize breeding program over two decades.Frontiers in plant science · 2024Article
- Effects of planting date, environments and their interaction on grain yield and quality traits of maize hybrids.Heliyon · 2023Article
- Drivers of transformation of the maize sector in Nigeria.Global food security · 2023Article
- Navigating toward resilient and inclusive seed systems.Proceedings of the National Academy of Sciences of the United States of America · 2023Review
- Genetic trends for yield and key agronomic traits in pre-commercial and commercial maize varieties between 2008 and 2020 in Uganda.Frontiers in plant science · 2023Article
- Ionizing Radiation: Effective Physical Agents for Economic Crop Seed Priming and the Underlying Physiological Mechanisms.International journal of molecular sciences · 2022Review
- Genetic trends in CIMMYT's tropical maize breeding pipelines.Scientific reports · 2022Article
- Incorporating male sterility increases hybrid maize yield in low input African farming systems.Communications biology · 2022Article
- Improving drought tolerance in maize: Tools and techniques.Frontiers in genetics · 2022Review
Corrections and comments
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Authors and funding
8 authors.
Funding
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Abstract
Seed security is vital for food security. Rapid-cycle, climate-adaptive breeding programs and seed systems that deliver new, elite varieties to farmers to replace obsolete ones can greatly improve the productivity of maize-based cropping systems in sub-Saharan Africa (SSA). Despite the importance and benefits of accelerated varietal turnover to climate change adaptation and food security, the rate of maize varietal replacement in SSA is slow. This review outlines the major bottlenecks, drivers, risks, and benefits of active replacement of maize varieties in eastern and southern Africa (ESA) and highlights strategies that are critical to varietal turnover. Although there is an upsurge of new seed companies in ESA and introduction of new varieties with better genetics in the market, some established seed companies continue to sell old (over 15-year-old) varieties. Several recently developed maize hybrids in ESA have shown significant genetic gains under farmers' conditions. Empirical evidence also shows that timely replacement of old products results in better business success as it helps seed companies maintain or improve market share and brand relevance. Therefore, proactive management of product life cycles by seed companies benefits both the farmers and businesses alike, contributing to improved food security and adaptation to the changing climate.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.