Developing a broad soybean germplasm base and durable resistance to soybean rust disease in Uganda
Abstract
152 words
Soybean rust, Phakopsora pachyrhizi is a major threat to
soybean production world-wide. In Uganda breeding for soybean
rust resistance has taken priority over other objectives since
the first disease rust outbreak in 1996. Three resistant varieties
Maksoy 1N, Maksoy 2N and Namsoy 4M released by the
soybean breeding programme are showing signs of resistance
breakdown. This calls for broadening of the genetic base of
local breeding material to be able to cope with soybean rust
which is expected to be more severe in countries where it is
endemic. Several other strategies can be implemented to control
soybean rust. These include germplasm enhancement and
breeding for durable resistance. This research seeks to use
durable partial resistance to select candidate genotypes to
incorporate into the breeding programme. Key outputs of the
research will include resistant genotypes, inventories of genetic
variability present in the available soybean germplasm and a
description of rust races in Uganda.
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