1. STATUS OF POTATO VARIETY DEVELOPMENT AND SEED PRODUCTION IN DR CONGO

3. Climatic conditions 17-19 1100-1500 April October 1700-1800 Orientale 18-19 1000-1600 Nov.-Febr. 1700-2000 Katanga 19-21 1200-1800 Sept.-Oct. March-Apr. 1700-2300 Sud Kivu 14-16 1300-1800 Oct.-Nov. Febr., Apr. 2000-2500 Nord Kivu T ˚ C Rainfall (mm) Seasons (planting) Altitudes (m) Provinces

12. Potato varieties, their characteristics Good Good Good Fair Good Good Good Good Good Good Good Storability Tolerant Tolerant 90-105 Shallow to medium White Marita Susceptible Tolerant 90-105 Medium White 386022.2 Murhula Susceptible Susceptible tolerant > 120 Medium White 800954 Seseni Tolerant Moderate 90-105 Medium Red 381381.20 Kinja Susceptible Tolerant Tolerant 110-130 Shallow Yellow/pur Ple eyes 720118 Cruza 148 Tolerant Tolerant 100 Shallow White 382171.4 Nsimire Resistant Susceptible Tolerant to resistant 120-130 Medium Red 720097 Gahinga Tolerant Tolerant Resistant 120-130 Shallow to Medium Red-White R-8212-6 Mabondo Susceptible Tolerant 90-105 Medium Pink 380606.6 Enfula Susceptible Susceptible Moderate 100-115 Medium Pink 800949 Sangema Susceptible(PLRV) Susceptible Moderate 90-105 Shallow to Medium Red 720049 Montsama Resistance-Virus BW resistance LB resistance Vegetative cycle(days) Eye deph Skin color Clone Nber Variety

15. Seed storage Diffused light store at Mulungu Center

16. Seed storage (cont’d) Farmer’s diffused light store

17. Methods used to break seed dormancy Pit in which seed potatoes are buried to break dormancy