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ARS Home » Southeast Area » Mayaguez, Puerto Rico » Tropical Crops and Germplasm Research » Research » Publications at this Location » Publication #327430

Research Project: Genetic Solutions for the Sustainable Intensification of Common Bean Production in Low-Input, Small-Holder Agricultural Systems

Location: Tropical Crops and Germplasm Research

Title: Field Performance of Andean Diversity Panel lines in two locations in Tanzania

Author
item Nchimbi, Susan - Sokoine University Of Agriculture
item Porch, Timothy - Tim
item Miklas, Phillip - Phil
item Cichy, Karen
item Beaver, J - University Of Puerto Rico
item Fourie, Deidre - Agricultural Research Council Of South Africa

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 1/11/2016
Publication Date: N/A
Citation: N/A

Interpretive Summary: Common bean is the most important grain legume in human diets in East Africa. For example, it is estimated that over 75 % of rural households in Tanzania depend on it for daily dietary requirements. Despite its importance, bean yield in the East African region is among the lowest in the world with an average of about 0.717 t/ha. Both biotic and abiotic factors contribute to the observed low yields in the region. In addition, most farmers do not have access to improved bean varieties due to unsatisfactory seed distribution systems for legume crops. The Andean Diversity Panel was evaluated in two locations, for two seasons in replicated trials in Tanzania. The objectives of the evaluations were to identify lines that would perform well under field conditions and later on be used in the breeding programmes for improvement. Disease and yield data were collected and analysed. Twelve ADP lines were found to perform well consistently in two seasons, and in two locations. These lines will be further evaluated in on-farm trials in the coming seasons and their cooking traits will also be assessed. It is expected that some lines from these twelve will be identified which could be used in the breeding programmes or be released for use by farmers.

Technical Abstract: Common bean (Phaseolus vulgaris L.) is the most important grain legume in human diets in East Africa. For example, it is estimated that over 75 % of rural households in Tanzania depend on it for daily dietary requirements. Despite its importance, bean yield in the East African region is among the lowest in the world with an average of about 0.717 t/ha. Both biotic and abiotic factors contribute to the observed low yields in the region. In addition, most farmers do not have access to improved bean varieties due to unsatisfactory seed distribution systems for legume crops. The Andean Diversity Panel was evaluated in two locations, for two seasons in replicated trials in Tanzania. The objectives of the evaluations were to identify lines that would perform well under field conditions and later on be used in the breeding programmes for improvement. Disease and yield data were collected and analysed. Twelve ADP lines were found to perform well consistently in two seasons, and in two locations. These lines will be further evaluated in on-farm trials in the coming seasons and their cooking traits will also be assessed. It is expected that some lines from these twelve will be identified which could be used in the breeding programmes or be released for use by farmers.