Maize is a
principal crop and main staple food in Mozambique. It is cultivated
on approximately 1.5 million hectares with an average yield less than
1 t ha-1. Major constraints to maize production include
disease, insect pests, drought and poor soil fertility. Primary
attention is given to breeding for stable yield potential, followed by
resistance to maize streak virus, downy mildew, leaf blights, rusts,
stem and ear rots. Special attention is given to the breeding
for quality protein maize (QPM), selection for hard grain texture
(flintiness), earliness (drought avoidance), tolerance to drought and
efficient use of soil N. A national maize breeding program was
successfully reestablished, both in terms of program activities and in
terms of breeding material. Intra- and inter-population improvement
approaches are being applied. Maize germplasm from CIMMYT with
tolerance to drought and low soil N was introduced and evaluated and
20 populations are undergoing evaluation in 11 diverse locations.
Three varieties have been selected for release. Approximately 650
inbred lines with favorable agronomic traits were introduced and
evaluated for local adaption. Six new populations resistant to maize
streak virus and downy mildew and with hard grain texture and QPM
endosperm modification are under multi-location testing throughout the
contry. Seed was also sent to several programs of neighboring
countries. A new QPM variety, Sussuma, was released and two tons of
foundation seed produced. Part of this seed was sent to 16 African
countries. A wide range of maize genotypes was tested by the
Mozambiquan maize breeding program, and collaborative linkages
fostered with crop breeders in other countries.