BULLETIN
THE
THE
Issue No. 2221
21-25 April 2014
New maize hybrids for DR Congo on the horizon
(QPM), while KATOKI WA LUKASA is normal maize that combined high grain yield with resistance to downy mildew (DMR). KATOKI WA LUKASA and MUDISHI-3 were originally introduced from IITA as AK9331-DMR-ESR-Y and DMR-ESR-W-QPM, respectively. According to maize breeders in DRC, maize varieties such as SHABA and KASAI introduced from CIMMYT in the mid-1970s; and IKENE-1, KWILU, and SAMARU introduced from IITA around the same time were well adapted to several agroecologies (Bandundu, Kinshasa, Bas Congo, and Kasai-Oriental provinces) in DRC. This is because most IITA maize genotypes were basically improved for resistance to maize streak virus (MSV) and downy mildew, two major foliar diseases of economic importance in the tropics, which are also common in most maize growing agroecologies in DR Congo. Dr Silvestro Meseka (right) with a partner examines maize harvest. Most farmers prefer white kernel maize for fforts to improve the productivity and Mvuazi and Ngandajika were developed food and this helped in the rapid adoption production of maize in DR Congo have for adaptation to lowland agroecologies. of the two QPM varieties. However, received a boost as trials across the various Most of the hybrids combined tolerance there is growing interest in yellow maize agroecological zones in that country show to multiple stresses including drought (KATOKI WA LUKASA) with the advent promising results. tolerance (DT) with high yield potential. of poultry and piggery industries in DR Dr Silvestro Meseka, IITA Maize Breeder During the harvest (March 2014), six Congo. who is back from the field, reports that the DT hybrids with superior performance results are the product of a collaborative were selected from more than 150 hybrids research project on the introduction of with the active participation of the maize improved maize hybrids and varieties that breeder, Dr Kankolongo Mbuya, and the was initiated by IITA in early February support staff of the national maize breeding 2013 under the CGIAR Research Program program at Ngandajika Research Station MAIZE. First, two senior technicians were (NRS). The criteria used for selection invited and trained after which hybrid and included ear aspect traits (good and uniform variety trials of different maturity groups ear fill, uniformity of grain color and ear for evaluation at Mvuazi (Bas Congo), size, low number of ear rots, ear tip cover) The former World Kipopo (Katanga), and Ngandajika (Kasai- and standability. Similar results were also Bank Vice President Oriental) were deployed. reported at Mvuazi Research Station. for Africa, Dr Oby According to him, the main purpose of Ezekwesili met with this research was to evaluate and identify Potential maize productivity Drs Kenton Dashiell, high-yielding, adaptable maize hybrids Dr Meseka said the potential of maize IITA Deputy Director and varieties for release to farmers that productivity is high in DR Congo, General (Partner will contribute to food security as well as especially in Kasai-Oriental, Katanga, and ships and Capacity increase income of maize-growing small- Bas Congo Provinces. “The performance Development); and holders in DR Congo. of some maize varieties seemed to be Robert Asiedu, IITA relatively stable even in fields where Maize hybrids trials inorganic fertilizers were not being Director for Western Africa in IITA More than 150 maize hybrids were evaluated applied,” he added. recently and discussed possible areas that at the Institut National pour l’Etude et Because most improved varieties were could advance the course of research in la Recherche Agronomiques (INERA) lost during the civil unrest, most farmers Africa and create more impact on the testing sites at Kipopo (4° 58’S, 17° 50’E (85%) use saved seeds from local varieties. continent. and 1300 m altitude), Ngadajika (6° 43’S Currently, there are three improved Dr Ezekwesili, who currently serves as and 23° 56’E, 779 m altitude), and Mvuazi high-yielding maize varieties, LONGE-5, an advisor to presidents of several African (5° 27’S, 14° 54’E and 470 m altitude) MUDISHI-3, and KATOKI WA LUKASA nations, promised to speak about the work during the main season (November 2013– being grown in DRC. Two of the varieties of IITA to donors and policymakers. She is February 2014). Maize genotypes tested (LONGE-5, MUDISHI-3) were improved a former minister of Education, and Solid at Kipopo were improved for adaptation for enhanced levels of quality protein and Minerals Development of Nigeria. to the mid-altitudes, while those tested at can be referred to as quality protein maize
E
Former World Bank Vice President for Africa, Oby Ezekwesili at IITA
Got a story to share? Please email it with photos and captions to Andrea Gros (a.gros@cgiar.org), Katherine Lopez (k.lopez@ cgiar.org), Jeffrey T. Oliver (j.oliver@cgiar.org), Godwin Atser (g.atser@cgiar.org), or Catherine Njuguna (c.njuguna@cgiar.org).
www.iita.org