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2015 Africa-wide Breeding Task Force Trials for Rainfed Lowland - PET

Harvard Dataverse (Africa Rice Center, Bioversity International, CCAFS, CIAT, IFPRI, IRRI and WorldFish)

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Title 2015 Africa-wide Breeding Task Force Trials for Rainfed Lowland - PET
 
Identifier https://doi.org/10.7910/DVN/PJRTEA
 
Creator Venuprasad, Ramaiah
 
Publisher Harvard Dataverse
 
Description In 2010, the Africa-wide Rice Breeding Task Force was launched by
AfricaRice involving National Agricultural Research System (NARS) from
about 30 countries. The objectives of the network are to evaluate the
stability of traits incorporated in breeding processes and to identify
varieties best fit to growth conditions in target regions and to markets.
The Task Force also accumulates data on performance of new elite lines,
thereby facilitating varietal release procedures. Furthermore, by
exposing breeders from NARS and farmers to these elite lines during the
testing phase, dissemination will be facilitated.

The activities conducted by the Task Force consists of a series of
consecutive trials. Promising breeding lines developed by AfricaRice or
by national and international partners, such as IRRI, CIAT and the NARS
are nominated for evaluation in one or several rice cultivation
environments: rainfed lowland, irrigated lowland, rainfed upland, high
elevation and mangrove. All nominated lines should be fixed and
accompanied by supporting data on traits incorporated during the breeding
process and with information on yield performance. These characteristics
are checked at AfricaRice before incorporation into the network.

The first phase (MET, Multi-Environment Testing) consists of an initial
evaluation of about 100 lines selected from the nominated lines.
Each national partner evaluates these lines at sites in his/her country.
Such sites may be at an experimental station under optimal management
to evaluate yield potential, or may be ‘hot spots’ to check the
performance of the nominations in a stressed growth environment.
Trials are replicated three times and include at least a common
and a local check.

The second phase (PET,Participatory Evaluation Trial) serves to
evaluate and confirm the performance of the selected lines. These lines
are cultivated using the same experimental design with 3 replications.
An important feature of PET is that farmer and other stakeholders
such as miller and traders are invited to participate in varietal
selection and their opinion on the performance of all entries
(i.e. participatory varietal selection, PVS) collected. Based on the
data collected, observations by the breeders and the opinion of
stakeholder groups, NARS partners select up to 10 lines.

Further, NARS evaluated these lines in at least three sites per country and during one or more growing seasons, depending on varietal release requirements. All stakeholders are again invited to get acquainted with the new lines and voice their opinion to help select lines for further advancement. Among the 10 lines, farmers are invited to select three lines and cultivate these in their own fields, together with a common check and their own variety.
 
Subject Agricultural Sciences
breeding
africa
rice
 
Language English
 
Date 2015-12-31
 
Contributor Dieng, Ibnou
Sie, Moussa (AfricaRice)
Anguete, Jean Michel (Centre National de Recherche Agronomique, CNRA, Cote d’Ivoire)
Konate, Abdourasmane (Institut de l'Environnement et de Recherches Agricoles, INERA, Burkina Faso)
Barry, Mamadou Laho (Institut de Recherche Agronomique de Guinee, IRAG, Guinee)
Cisse, Fousseyni (Institut d’Economie Rurale, IER, Mali)
Ehirim, Bernard (National Cereals Research Institute, NCRI, Nigeria)
Pegalepo, Esther (AfricaRice)
N'dri, Brice (AfricaRice)
Dieng, Ibnou (AfricaRice)
 
Type Experiment