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Fifteen cassava (Manihot esculentaCrantz) genotypes were grown at two field sites of Nigeria from 1994 to 1996 (Ibadan: 28±5°C, altitude 210 masl and Jos: 18±5°C, altitude of 1260 masl) to evaluate the use of chlorophyll fluorescence in screening for cold tolerance in cassava. At 12 months after ...


Togun, A.O.Akparobi, S.O.Ekanayake, I.J.[Field studies on chlorophyll a fluorescence for low temperature tolerance testing of cassava (Manihot esculenta Crantz)]Field studies on chlorophyll a fluorescence for low temperature tolerance testing of cassava (Manihot esculenta Crantz)

Leaf age effects on the leaf conductance to water vapour diffusion of the adaxial and abaxial leaf surfaces were measured in the morning and in the afternoon on 17 different plantain and banana (Musa spp.) genotypes. The irradiance levels increased three-fold while leaf to air vapour pressure def...


Ekanayake, I.J.Ortiz, R.Vuylsteke, D.R.[Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site]Influence of leaf age, soil moisture, VPD and time of day on leaf conductance of various Musa genotypes in a Humid Forest Moist Savanna transition site

Identification of drought-tolerant and -resistant varieties of cassava is of paramount importance for the maximization of productivity potential in drought-prone areas. Nine improved cassava varieties developed in humid and subhumid agro-ecologies were evaluated for their growth responses and ada...


Okogbenin, E.Ekanayake, I.J.Porto, M.C.M.[Genotypic variability in adaptation responses of selected clones of cassava to drought stress in the Sudan savanna zone of Nigeria]Genotypic variability in adaptation responses of selected clones of cassava to drought stress in the Sudan savanna zone of Nigeria

Arbuscular mycorrhizal (AM) fungi are well known phyto-stimulators of various growth processes of its symbiotic plants. Semi-controlled experiments were conducted in large container cultured cassava to investigate the influence of AM inoculation and water stress on leaf chlorophyll production fro...


Ekanayake, I.J.Oyetunji, O.J.Osonubi, O.Lyasse, O.[Effects of arbuscular mycorrhizal fungi and water stress on leaf chlorophyll production of cassava (Manihot esculenta Crantz)]Effects of arbuscular mycorrhizal fungi and water stress on leaf chlorophyll production of cassava (Manihot esculenta Crantz)

Cultivated plantains and bananas (Musa spp.) are important staple crops in the humid forest and midaltitude ecologies of sub-Saharan Africa. Their water requirement is relatively high and they are very sensitive to dry soil conditions, which greatly limits their range of cultivation. While long-t...


Ekanayake, I.J.Ortiz, R.Vuylsteke, D.R.[Physiological factors in drought tolerance of various Musa genotype]Physiological factors in drought tolerance of various Musa genotype

The distribution of the cyanogenic potential in cassava germplasm has been found to be a continuum from very low values to high levels. Within the same genotype, the cyanogenic potential is affected by the planting season; it is low when planted at the beginning of the rainy season, and high when...


Bokanga, M.Ekanayake, I.J.Dixon, A.Porto, M.[Genotype environment interactions for cyanogenic potential in cassava]Genotype environment interactions for cyanogenic potential in cassava

Cassava is predominantly an upland crop that is also cultivated in inland valley swamps (IVS). Identifying physiological traits that can withstand excess moisture stress can aid in the selection and use of stable cassava cultivars in IVS. Three cassava cultivars were evaluated for growth and yiel...


Lahai, M.T.George, J.B.Ekanayake, I.J.[Cassava Manihot esculenta Crantz growth indices, root yield and its components in upland and inland valley agroecologies of Sierra Leone]Cassava Manihot esculenta Crantz growth indices, root yield and its components in upland and inland valley agroecologies of Sierra Leone

Arbucsular Mycorrhizal Fungi (AMF) are implicated as phyto-stimulators of various physiological processes of its symbiotic plants. The influences of AM fungi and water deficit on quantum yield of photochemistry (Fv/Fm) of photo-system II of cassava leaves were therefore investigated. Field experi...


Oyetunji, O.Ekanayake, I.J.Osonubi, O.[Chlorophyll fluorescence analysis for assessing water deficit and Arbuscular Mycorrhizal Fungi (AMF) inoculation in cassava (Manihot esculenta Crantz)]Chlorophyll fluorescence analysis for assessing water deficit and Arbuscular Mycorrhizal Fungi (AMF) inoculation in cassava (Manihot esculenta Crantz)

Two field trials were established in 1996 and 1997 to assess genotypic variability of four cassava (Manihot esculanta) cultivars for adaptability in the inland valley in terms of leaf chlorophyll content and tuberous root yield, using a 4 x 4 Latin square design with four replications arranged al...


Lahai, M.T.Ekanayake, I.J.George, J.B.[Leaf chlorophyll content and tuberous root yield of cassava in inland valley]Leaf chlorophyll content and tuberous root yield of cassava in inland valley

Cassava (Manihot esculenta Crantz) is an important starchy food crop in the inland valley ecosystem areas in West Africa where harvesting and marketing infrastructure is not optimal and postharvest losses are high. An attempt was therefore made to assess the genotypic variability of physiological...


Ekanayake, I.J.Lyasse, O.[Genotypic variations in physiological deterioration of cassava (Manihot esculenta Crantz) storage roots under inland valley conditions]Genotypic variations in physiological deterioration of cassava (Manihot esculenta Crantz) storage roots under inland valley conditions

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