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Robert O.M. Mwanga, Benson Odongo, Charles Niringiye, Agnes Alajo, Putri E. Abidin, Regina Kapinga, Silver Tumwegamire, Berga Lemaga, James Nsumba and Edward E. Carey

Alternaria stem blight and low soil fertility problems are widespread. A total of 10 multilocational on-station and 14 on-farm trials were conducted under rainfed conditions ( Mwanga et al., 2004a ). The cultivars were routinely evaluated for resistance to

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R.O.M. Mwanga, B. Odongo, G. Turyamureeba, A. Alajo, G.C. Yencho, R.W. Gibson, N.E.J.M. Smit and E.E. Carey

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R.O.M. Mwanga, B. Odongo, C. Ocitti p'Obwoya, R.W. Gibson, N.E.J.M. Smit and E.E. Carey

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Robert O.M. Mwanga, Benson Odongo, Charles Niringiye, Agnes Alajo, Benjamin Kigozi, Rose Makumbi, Esther Lugwana, Joweria Namukula, Isaac Mpembe, Regina Kapinga, Berga Lemaga, James Nsumba, Silver Tumwegamire and Craig G. Yencho

) the warm, moist, tall grasslands where SPVD is severe; and 3) the cool, moist, southwestern highlands where Alternaria stem blight and low soil fertility stresses are prevalent. Mwanga et al. (2007a) provided detailed descriptions of pedigree, test

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Robert O.M. Mwanga, Charles Niringiye, Agnes Alajo, Benjamin Kigozi, Joweria Namukula, Isaac Mpembe, Silver Tumwegamire, Richard W. Gibson and G. Craig Yencho

desirable traits such as high DM (30% or greater), resistance to SPVD and Alternaria stem blight ( Alternaria bataticola ), and earliness (3 to 4 months). ‘NASPOT 11’ is a progeny of ‘New Kawogo’ as the female parent from open-pollinated seed; thus, its male

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Damien Shumbusha, Jean Ndirigwe, Lydia Kankundiye, Anastasie Musabyemungu, Daphrose Gahakwa, Phanuel S. Ndayemeye and Robert O.M. Mwanga

moderate resistance to SPVD, Alternaria stem blight, and sweetpotato weevil attack. Table 3. Performance of the six sweetpotato released cultivars on-station across three locations, Rubona, Karama, and Ngoma in 2013A. z Table 4. Yield quality attributes and