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Mateus Rodriguez, J.Haan, Stef deRodríguez Delfin, A.[Genotype by environment effects on potato mini-tuber seed production in an aeroponics system.]Genotype by environment effects on potato mini-tuber seed production in an aeroponics system.
Petsakos, AthanasiosPrager, Steven D.González, Carlos EduardoGama, Arthur ChibwanaSulser, Timothy B.Gbegbelegbe, SikaKikulwe, Enoch M.Hareaua, Guy[Understanding the consequences of changes in the production frontiers for roots, tubers and bananas]Understanding the consequences of changes in the production frontiers for roots, tubers and bananas

Vegetatively propagated crop (VPC) seed tends to remain true to varietal type but is bulky, often carries disease, and is slow to produce. So VPC seed needs to be handled differently than that of other crops, e.g., it tends to be sourced locally, often must be fresh, and it is less often sold on ...


Bentley, J.W.Andrade-Piedra, J.L.Demo, P.Dzomeku, B.M.Jacobsen, K.Kikulwe, E.Kromann, P.Kumar, L.McEwan, M.Mudege, Netsayi N.Ogero, K.Okechugwu, R.Orrego, R.Ospina, B.Sperling, L.Walsh, S.Thiele, Graham[Understanding root, tuber, and banana seed systems and coordination breakdown: A multi-stakeholder framework.]Understanding root, tuber, and banana seed systems and coordination breakdown: A multi-stakeholder framework.

Potential of tropical Africa for agro-industrial by-products suitable for animal feeding and fattening w. data on feed value of byproducts from cereals, tubers, oilseeds, sugar canes and others.


International Livestock Centre for Africa[The potential of Tropical Africa in by-products for animal feeds]The potential of Tropical Africa in by-products for animal feeds

An experiment was conducted to study the performance of nine genotypes of potato under hill zone of Karnataka. Among nine genotypes, maximum tuber sprout percentage was observed in Kufri Jyoti (100) followed by TT7011 (98.75) and least percentage was in C-28 (89.16). Kufri Jyoti performed better ...


Lavanya, K.S.Srinivasa, V.Devaraju, D.Lakshmana, D.Shahid, A.Kadian, M.S.Archana, R.Nandini, K.S.[Performance of potato (Solanum tuberosum L.) genotypes under hill zone of Karnataka.]Performance of potato (Solanum tuberosum L.) genotypes under hill zone of Karnataka.

The effects of 0.2% aqueous solution of colchicine on the survival rate and morphological features of five accessions of Dioscorea alata were investigated. Sprouting buds of two month old plants were treated with 0.2% colchicine and their performances were monitored until maturity. Survival of bu...


Ajayi, A.T.Adesoye, A.I.Asiedu, RobertSartie, A.M.[Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)]Colchicine-induced variations in survival rate and morphological characteristics of water yam (Dioscorea alata)

(1) The effects of the cassava mealybug, Phenacoccus manihoti Mat.-Ferr., on cassava, Manihot esculenta Crantz, growth, development and yields as modified by weather, soil water and nitrogen, and natural enemies were examined. (2) Rainfall-induced mortality and plant carbohydrate stress were the...


Gutiérrez, A.P.Neuenschwander, P.Schulthess, F.Herren, H.R.Baumgaertner, J.U.Wermelinger, B.Lohr, B.Ellis, C.K.[Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)]Analysis of the biological control of cassava pests in Africa: II. Cassava mealybug (Phenaccoccus manihoti)

(1) The effects of the cassava mealybug, Phenacoccus manihoti Mat.-Ferr., on cassava, Manihot esculenta Crantz, growth, development and yields as modified by weather, soil water and nitrogen, and natural enemies were examined. (2) Rainfall-induced mortality and plant carbohydrate stress were the...


Gutiérrez, A.P.Yaninek, John S.Wermelinger, B.Herren, H.R.Ellis, C.K.[Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa]Analysis of biological control of cassava pests in Africa: III. Cassava green mite Mononychellus tanajoa

Millions of people around the world, particularly in West Africa, depend on yam for food and income, however global yam production has been fluctuating since 2007. Virus infections contribute to yam yield losses and the occurrence of mixed virus infections is potentially catastrophic. Planting of...


Eni, A.Hughes, J.Asiedu, RobertRey, M.[Incidence and diversity of mixed viruses lower in yam tubers and tuber sprouts compared with field leaf samples: Implications for virusfree planting material control strategy]Incidence and diversity of mixed viruses lower in yam tubers and tuber sprouts compared with field leaf samples: Implications for virusfree planting material control strategy

( 1 ) A model for the growth and development of cassava, Manihot esculenta Crantz, as modified by weather, soil nitrogen and water is described, and used in later papers to evaluate damage by exotic cassava pests and the effectiveness of control by natural. (2) Analogous relationships between t...


Gutiérrez, A.P.Wermelinger, B.Schulthess, F.Baumgaertner, J.U.Herren, H.R.Ellis, C.K.Yaninek, John S.[Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava]Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava

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