Job offersmore »

Tweeting Growers

Top 5 - yesterday

Top 5 - last week

Top 5 - last month

Exchange ratesmore »

Tanzania: Introduction and evaluation of tomato germplasm

Tomato is an important cash crop in many developing countries. However, smallholder farmers often lack access to improved cultivars and breeding programs to develop locally adapted cultivars are limited. Participatory crop improvement (PCI) approaches can be used to increase farmer access to improved cultivars.

In this project, researchers used the mother and baby trial (MBT) design to introduce and evaluate tomato cultivars in three villages in the Morogoro Region of Tanzania. Mother trials were conducted in seven environments within the three villages, and variance partitioning revealed significant genetic effects for all traits measured with h2 ranging from 0.74 to 0.90 for yield and disease reaction, respectively.

In baby trials, farmers provided qualitative rankings of cultivars for 16 characteristics, including vigor, yield, harvest period, diseases, insect damage, fruit quality, and salability. Results from baby trials indicated that introduced cultivars were locally acceptable to farmers, except for traits related to marketability.

Outcome Mapping was used to evaluate progress in each of the three villages and results suggested that high stakeholder participation levels could predict future adoption of introduced cultivars. The findings provide a framework for evaluating, selecting, and breeding tomato and other horticultural crops in developing countries using the MBT design for PCI.

Access the full study at HortScience

Publication date: 1/6/2017



Other news in this sector:

3/22/2018 Monsanto and Pairwise collaborate to accelerate gene editing innovation
3/21/2018 Salutamu rootstocks for aubergine crops
3/20/2018 Italy: Three new basil varieties
3/19/2018 US (WA): Plant researcher’s work helps lucrative spinach seed industry
3/16/2018 France: Innovations in seeds production
3/16/2018 US (PA): Penn State-bred grape tomato becomes commercially available
3/15/2018 New Zealand: Māori-owned company to breed unique berries
3/15/2018 International breeders learn latest watermelon grafting techniques
3/14/2018 Interesting hybrids
3/13/2018 "Stronger partnerships can catalyze African vegetable markets"
3/12/2018 Tanzania: hybridizing the vegetable farming sector
3/9/2018 Labour costs of concern to Spanish growers
3/9/2018 Seeding a sustainable future for American agriculture
3/9/2018 "Protecting genetic diversity essential for future of food security"
3/7/2018 The impact of genetic changes on healthy food development
3/6/2018 US (IA): How birds help to produce rare wild chili peppers
3/6/2018 India: CIOPORA puts forward “different-rules-for-different-crops” proposal
3/6/2018 South Africa: Margaret Roberts honored with seed bank
3/5/2018 Pink vegetables are new Social Media hype
3/5/2018 US: Regulatory barriers to biotechnology development