Proceedings of the 2nd Symposium of ISTRC-AB August 1983, Douala, Cameroon.

No Title Author Page  
1 Foreword 9-10
2 Participants 11-13
3 Opening address Nkaifon Perfura 15
4 Presidential address Bede N.Okigbo 16
5 Closing address Nkaifon Perfura 17
6 Production potentials of major tropical root and tuber crops E. V. Doku 19-24    
7 Potential utilization of major root crops,with special emphasis on human,animal,and industrial uses D.G.Coursey 25-36
8 Genetic parameters of cassava N.M. Mahungu,H.R.Chheda,S.K.Hahn,and C.A.        Fatokun 37-40  
9 Evaluation of cassava clones for leaf production in Zaire N.B.Lutaladio 41-44  
10 Cassava screening in Rwanda J.Mulindangabo 45-48  
11 Effect of variety and planting time on the yield of cassava in Malawi R.F. Nembozanga Sauti 49-50  
12 Response of cassava to fertilizers and town refuse under continuous cropping S.O.Odurukwe and U.I Oji 51-52  
13 Rapid multiplication of cassava by direct planting M.T.Dahniya and S.N. Kallon 53-54  
14 Effects of shade,nitrogen,and potassium on cassava I.N.Kasele,S.K.Hahn,C.O.Oputa and P.N.Vine 55-58  
15 Weed interference in cassava-maize intercrop in the rain forest of Nigeria Ray.P.A.Unamma and L.S.O Ene 59-62  
16 Crop performance in complex mixtures:melon and okra in cassava-maize mixture J.E.G.Ikeorgu,T.A.T.Wahua and H.C.Ezumah 63-66
17 Soil-conserving techniques in cassava and yam production P.N.Vine,O.B.Ajayi,D.M.Mitchozounou,E.J.Hounkpatin,and T.Hounkpevi 67-70
18 Factors limiting cassava production among peasants in Lukangu,Zaire Kilumba Ndayi 71-72  
19 Epidemiology of anthracnose in cassava C.Makambila 73-78  
20 Cassava yield losses from brown leaf spot induced by Cercosporidium henningsii J.M.Teri,P.W.Mtakwa,and D.Mshana 79-81  
21 Susceptibility of cassava to Colletotrichum manihotis Kankolongo A.,M.O. Adeniji,and E.R.Terry 82-85  
22 Botryodiplodia stem rot of cassava and methods of selecting varieties for resistance G.W.Otim-Nape 86-88  
23 Distribution and severity of cassava mosaic in the Congo R.Massala 89  
24 The cassava mealybug front hypothesis:role of indigenous natural enemies K.M.Lema,R.D.Hennessey,and H.R.Herren 90-92  
25 Comparative bioecology of two coccinellids,predators of the cassava mealybug,in the Congo G.Fabres and A.Kiyindou 93-96  
26 Effects of fertilizer application on postembryonic development and reproduction of the cassava mealybug K.M.Lema and N.M. Mahungu 97-98  
29 Functional response of Amblyseius fustis to increasing density of its prey Mononychellus tanajoa T.O.Ezulike and J.K.U.Emehute 99-100  
28 Control of the cassava green mite in Uganda B.Odongo and G.W.Otim-Nape 101-102  
29 Studies on the nutrient content of yellow-pigmented cassava O.Safo-Kantanka,P.Aboagye,S.A Amartey,andJ.H.Oldham 103-104  
30 Microbial breakdown of linamarin in fermenting cassava pulp M.A.N.Ejiofor and Nduka Okafor 105-107  
31 Performance of a cassava peeling machine. P.M.Nwokedi 108-107  
32 An improved technique of processing cassava fufu Festus A.  Numfor 108-100  
33 Cassava-based diets for rabbits R.T.Fomunyam,A.A.Adegbola,and O.L.Oke 111-113  
34 Effects of cassava meal on the hatchability of chicken eggs. D.A.Ngoka,E.C.Chike,A.B.Awoniyi,T.Enyinnia,and S.O.Odurukwe 117-120  
35 In-vitro culture of Dioscorea rotundata embryos C.E.A.Okezie,F.I.O.Nwoke,andS.N.Okonkwo 121-124  
36 Economic indices for clonal selection and breeding of yams O.O.Okoil,J.U.Nwokoye,and C.C.Udugwu 125-128  
37 Seed-yam production M.N.Alvarez and S.K.Hahn 129-132  
38 Natural antifungal compounds from the peel of yam tubers S.K.Ogundana,D.T.Coxon,and C.Dennis 133-135  
39 Optimal time for fertilization of Dioscorea rotundata S.C.O.Nwinyi 136-137  
40 Effects of staking on tuber yield of three cultivars of trifoliate yam S.N.Lyonga and J.T.Ambe 138-139  
41 Effect of time of staking on the development of anthracnose disease of water yam A.O.Nwankiti and I.U. Ahiara 140-142  
42 Thermodynamics applied  to the storage of yam tubers Godson O.Osuji 143-146  
43 Root-knot susceptibility of crops grown with yam in Nigeria U.G.Atu and R.O,Ogbuji 147-148  
44 Effects of cover plants on root-knot nematode population U.G.Atu and R.O,Ogbuji 149-150  
45 Survival of Botryodiplodia theobromae in yam tissues S.K.Ogundana,B.I.Aderiye 151-152  
46 Variability in the chemical composition of yams grown in Cameroon T.Agbor Egbe and S.Treche 153-156  
47 Mineral content of yam tubers:raw,boiled,and as flour. A.Bell 157-160  
48 Introduction of flour from Dioscorea dumetorum in a rural area G.Matins,S.Treche,L.Noubi,T.Agbor Egbe and S. Gwangwa`a 161-164  
49 In-vitro methods for cocoyam improvement E.Acheampong and G.G Henshaw 165-168  
50 production of hybrid Xanthosoma sagittifolium and test for resistance to Pythium myriotylum A.Agueguia and S.Nzietchueng 169-171  
51 Growth and development of Colocasia and Xanthosoma spp.under upland conditions M.C.Igbokwe 172-174  
52 Effects of water-table depth on cocoyam B.S.Ghuman and R.Lal 175-181  
53 Intercropping cocoyams with plantain:effects on the yield and disease of cocoyams M.C.Igbokwe,O.B.Arene,T.C.Ndubuizu,and E.E. Umana 182-184
54 Root rot of Xanthosoma sagittifolium caused by Pythium myriotylum in Cameroon Samuel Nzietchueng 185-188
55 Sweet-potato production potential in Rwanda G.Ndamage 189-191  
56 Comportment studies with sweet potatoes in the highland zone of Cameroon S.N.Lyonga and J.A.Ayuk-Takem 192-196  
57 Effects of vesicular-arbuscular mycorrhizae,temperature,and phosphorus on Fusarium wilt of sweet potato J.M.Ngeve and R.W.Roncadori 197-202  
58 On-farm trials as a link between research and technology transfer H.J.Pfeiffer 203-205  
59 Planatain in root-crop farming systems S.k. Karikari 206-208
60 References 209-228
61 Yellow-pigmented cassava revisited K.A.Oduro 229  
62 Distribution and utilization of cassava in Malawi R.F..Nembozanga Sauti 229  
63 Can cassava productivity be raised in Zambia? N.Hrishi 230  
64 Prospects for developing new white yam varieties M.O.Akoroda 230  
Extension of root-crops technology to African farmers. T.Enyinnia,H.E.Okereke,and D.A.Ngoka 231