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African Crop Science Journal - Vol 9, No 1 (2001)

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Table of Contents

Articles

Tapioca-a new and cheaper alternative to agar for direct in vitro shoot regeneration and microtuber production from nodal cultures of potato.
Endale Gebre, B. N. Sathyanarayana
http://dx.doi.org/10.4314/acsj.v9i1.27618
Inheritance of resistance to tomato bacterial wilt and its implication for potato improvement in Uganda
M. O. Osiru, P. R. Rubaihayo, A. F. Opio
http://dx.doi.org/10.4314/acsj.v9i1.27619
Agronomic performance of twelve elite potato genotypes in southwestern Uganda
G. Abalo, J. J. Hakiza, R. M. Kakuhenzire, R. El-Bedewy, E. Adipala
http://dx.doi.org/10.4314/acsj.v9i1.27620
Evaluation of sweetpotato for early maturity across different agro-ecological zones in Ghana
A. Missah, A. G. Carson, J. A. Otoo
http://dx.doi.org/10.4314/acsj.v9i1.27621
Évaluation post récolte de six génotypes de patate douce sélectionnés a l'est du Congo
M. Feruzi, P. Phemba, M. Ngongo, V. Hagenimana, N. B. Lutaladio
http://dx.doi.org/10.4314/acsj.v9i1.27622
Participatory on-farm selection of sweetpotato varieties in western Kenya
P. J. Ndolo, T. Mcharo, E. E. Carey, S. T. Gichuki, C. Ndinya, J. Maling'a
http://dx.doi.org/10.4314/acsj.v9i1.27623
Performance of selected sweetpotato varieties in Kenya
M. Mcharo, E. E. Carey, S. T. Gichuki
http://dx.doi.org/10.4314/acsj.v9i1.27624
Tropical potato clones with larger canopies do not affect the growth, yield and yield components of intercropped sugar cane
Y. Cadersa, K. Wong Yen Cheong, N. Govinden
http://dx.doi.org/10.4314/acsj.v9i1.27625
Effects of spatial arrangement on tuber yields of some potato cultivars.
Endale Gebre, Gebremedhin W. Giorgis
http://dx.doi.org/10.4314/acsj.v9i1.27627
Effect of plant density and seed size on growth and yield of solanum potato in Khartoum State, Sudan.
A. M. Khalafalla
http://dx.doi.org/10.4314/acsj.v9i1.27626
Effect of intercropping maize and solanum potato on yield of the component crops in Central Uganda
M. Ebwongu, E. Adipala, C. K. Ssekabembe, S. Kyamanywa, A. S. Bhagsari
http://dx.doi.org/10.4314/acsj.v9i1.27628
Effect of leaf harvesting frequency on growth and yield of sweetpotato in the Lake Zone of Tanzania
H. C. Kiozya, K. Mtunda, R. Kapinga, B. Chirimi, E. Rwiza
http://dx.doi.org/10.4314/acsj.v9i1.27629
Impact of defoliation on the agronomic performance of sweetpotato in Uganda
F. Lugojja, M. W. Ogenga-Latigo, N. E. J. M. Smit
http://dx.doi.org/10.4314/acsj.v9i1.27630
Interactive effect of nitrogen and potassium on dry matter and nutrient partitioning in true potato seed mother plants
C. R. Kanzikwera, J. S. Tenywa, D. S.O. Osiru, E. Adipala, A. S. Bhagsari
http://dx.doi.org/10.4314/acsj.v9i1.27631
Potassium and calcium nutrition improves potato production in drip-irrigated sandy soil
A. A. Tawfik
http://dx.doi.org/10.4314/acsj.v9i1.27632
Species diversity and activity of parasitoids of the sweetpotato butterfly, Acraea acerata, in Uganda.
F. Lugojja, M. W. Ogenga-Latigo, N.E. J.M. Smit
http://dx.doi.org/10.4314/acsj.v9i1.27633
Influence of sweetpotato rooting characteristics on infestation and damage by Cylas spp
S. Kabi, M. W. Ogenga-Latigo, N.E. J.M Smit, T. E. Stathers, D. Rees
http://dx.doi.org/10.4314/acsj.v9i1.27634
Influence of spatial arrangements in maize/solanum potato intercrops on incidence of potato aphids and leaf hoppers in Uganda
M. Ebwongu, E. Adipala, J. J. Hakiza, J. C. Kedera, P. Ojiambo, J. M. Mukalazi, G. Forbes, R. Nelson
http://dx.doi.org/10.4314/acsj.v9i1.27635
Epidemiology and population dynamics of Phytophthora infestans in Sub-Saharan Africa: Progress and constraints
O. M. Olanya, E. Adipala, J. J. Hakiza, J. C. Kedera, P. Ojiambo, J. M. Mukalazi, G. Forbes, R. Nelson
http://dx.doi.org/10.4314/acsj.v9i1.27638
Variability in potato late blight severity and its effect on tuber yield in Uganda
J. Mukalazi, E. Adipala, T. Sengooba, J. J. Hakiza, M. Olanya, H. M. Kidanemariam
http://dx.doi.org/10.4314/acsj.v9i1.27639
Integrated management of early and late blights of potatoes in Israel
D. Shtienberg
http://dx.doi.org/10.4314/acsj.v9i1.27640
Reactions of some potato genotypes to late blight in Cameroon
D. K. Njualem, P. Demo, H. A. Mendoza, J. T. Koi, S. F. Nana
http://dx.doi.org/10.4314/acsj.v9i1.27641
Evaluation of potato germplasm (Population A & B) for resistance to late blight in Kenya
R. El-Bedewy, O. M. Olanya, P. T. Ewell, C. Lung'aho, P. S. Ojiambo, J. Karinga, J. Karinga
http://dx.doi.org/10.4314/acsj.v9i1.27642
Impact of fungicide application and late blight development on potato growth parameters and yield in the tropical highlands of Kenya and Uganda
P. S. Ojiambo, S. Namanda, O. M. Olanya, R. El-Bedewy, J. J. Hakiza, E. Adipala, G. Forbes
http://dx.doi.org/10.4314/acsj.v9i1.27643
Influence of rate and frequency of Ridomil plus applications on late blight severity and potato yields in Cameroon
D. A. Fontem
http://dx.doi.org/10.4314/acsj.v9i1.27644
Efficacy and economics of fungicide spray in the control of late blight of potato in Ethiopia
Bekele Kassa, Hailu Beyene
http://dx.doi.org/10.4314/acsj.v9i1.27645
Reaction of potato cultivars to Ralstonia solanacearum in Kenya
E. M. Ateka, A. W. Mwang'ombe, J. W. Kimenju
http://dx.doi.org/10.4314/acsj.v9i1.27646
The effect of crop rotation on bacterial wilt incidence and potato tuber yield
Berga Lemaga, R. Kanzikwera, R. Kakuhenzire, J. J. Hakiza, G. Manzi
http://dx.doi.org/10.4314/acsj.v9i1.27647
Effect of soil amendments on bacterial wilt incidence and yield of potatoes in southwestern Uganda
Berga Lemaga, D. Siriri, P. Ebanyat
http://dx.doi.org/10.4314/acsj.v9i1.27648
On-farm successes and challenges of producing bacterial wilt-free tubers in seed plots in Kenya
Z. M. Kinyua, J. J. Smith, C. Lung'aho, M. Olanya, S. Priou
http://dx.doi.org/10.4314/acsj.v9i1.27649
Etiology, effect of soil pH and sweetpotato varietal reaction to Alternaria leaf petiole and stem blight in Kenya
T. J. Anginyah, R. D. Narla, E. E. Carey, R. Njeru
http://dx.doi.org/10.4314/acsj.v9i1.27650
Variability of sweetpotato feathery mottle virus in Africa
R. F. Karyeija, J. F. Kreuze, R. W. Gibson, J. P.T. Valkonen
http://dx.doi.org/10.4314/acsj.v9i1.27651
Damage reduces shelf-life of sweetpotato during marketing
K. Mtunda, D. Chilosa, E. Rwiza, M. Kilima, H. Kiozya, R. Munisi, R. Kapinga, D. Rees
http://dx.doi.org/10.4314/acsj.v9i1.27652
Potential of orange and yellow fleshed sweetpotato cultivars for improving vitamin A nutrition in Central Uganda
J. M. Ssebuliba, E. N.B. Nsubuga, J. H. Muyonga
http://dx.doi.org/10.4314/acsj.v9i1.27653
Variety: The key driver of demand for seed potatoes in the Philippines
P. J. Batt
http://dx.doi.org/10.4314/acsj.v9i1.27654
Changes in African smallholder agriculture in the twentieth century and the challenges of the twenty-first
S. J. Carr
http://dx.doi.org/10.4314/acsj.v9i1.27655


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