Vol. 9 No. 1 (2001) | African Crop Science Journal

Published: 2001-01-01

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

10.4314/acsj.v9i1.27623

Performance of selected sweetpotato varieties in Kenya

M. Mcharo, E. E. Carey, S. T. Gichuki

DOI:

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

DOI:

10.4314/acsj.v9i1.27625

Effects of spatial arrangement on tuber yields of some potato cultivars.

Endale Gebre, Gebremedhin W. Giorgis

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

10.4314/acsj.v9i1.27631

Potassium and calcium nutrition improves potato production in drip-irrigated sandy soil

A. A. Tawfik

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

10.4314/acsj.v9i1.27639

Integrated management of early and late blights of potatoes in Israel

D. Shtienberg

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

10.4314/acsj.v9i1.27645

Reaction of potato cultivars to Ralstonia solanacearum in Kenya

E. M. Ateka, A. W. Mwang'ombe, J. W. Kimenju

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

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

DOI:

10.4314/acsj.v9i1.27653

Variety: The key driver of demand for seed potatoes in the Philippines

P. J. Batt

DOI:

10.4314/acsj.v9i1.27654

Changes in African smallholder agriculture in the twentieth century and the challenges of the twenty-first

S. J. Carr

DOI:

10.4314/acsj.v9i1.27655

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